Fair List
Contract Code Reference
A = Construction Contractor
AV = Audio / VideoCABLE = Cable
C = Communication Contractor
G = General – Specialty Contractor
LM = Lighting Maintence
MAINT = Maintenance
MFG = Manufacturing
R = Residential Contractor
SIGN = Electrical Sign Contractor
SWITCH = Switchboard Manufacturers
| Employer Code | Employer Name | Contract Code | Phone |
| 10222 | B | A | 219-554-1100 |
| M09500 | 175 JACKSON L.L.C – C/O JACKSON MGMT. & INVESTMENT | MAINT | 312-781-2409 |
| 2860 | A & C ELECTRIC, INC. | A | 847 640-1093 |
| 2870 | A & E ELECTRICAL CONTRACTORS, INC. | A | 708-488-8322 |
| 560 | A & M POWER ELECTRIC, INC. | A | (630) 910-9606 |
| 465 | A.B.&C. ELECTRIC INC. | A | 708-301-5231 |
| 3120 | A.E.C. ELECTRIC, CORP. | A | 847-588-3830 |
| 3120 | A.E.C. ELECTRIC, CORP. | C | 847-588-3830 |
| 2840 | A/E ELECTRIC CO., INC. | A | 219 924-9795 |
| 1330 | ABCO ELECTRICAL CONSTRUCTION & DESIGN L.L.C. | A | 773 826-2600 |
| 1330 | ABCO ELECTRICAL CONSTRUCTION & DESIGN L.L.C. | C | 773 826-2600 |
| 1330 | ABCO ELECTRICAL CONSTRUCTION & DESIGN L.L.C. | R | 773 826-2600 |
| 1450 | ABR COMMUNICATIONS, INC. | A | 708-239-3192 |
| 1450 | ABR COMMUNICATIONS, INC. | C | 708-239-3192 |
| 1510 | ACAMARD TECHNOLOGIES, INC. | C | (84) 303-9670 |
| 1760 | ACCU-TECH ELECTRIC, INC. | A | 708-594-5410 |
| M10000 | ACCU-TECH ELECTRIC, INC. | MAINT | 708-594-5410 |
| 8220 | ACCURATE COMMUNICATIONS, INC. | C | 847 437-1001 |
| 1830 | ACE ELECTRIC, INC. | C | 610-782-0275 |
| 2520 | ADLITE ELECTRIC CO., INC. | A | 847 296-2333 |
| 8360 | ADVANCED DATA TECHNOLOGIES, INC. | A | 630 355-3113 |
| 8360 | ADVANCED DATA TECHNOLOGIES, INC. | C | 630 355-3113 |
| 8370 | ADVANCED ELECTRICAL CONTRS., INC. | A | 708 563-2600 |
| 2725 | ADVANCED ELECTRICAL SYSTEMS, INC. | A | 708-333-3885 |
| 2730 | ADVANCED PROTECTION SYSTEMS, INC. | C | 630 393-4242 |
| 2780 | ADVANCED WIRING SOLUTIONS, INC. | C | 708-385-0916 |
| 41960 | ADVENT SYSTEMS, INC. | A | 630 279-7171 |
| 41960 | ADVENT SYSTEMS, INC. | C | 630 279-7171 |
| 3125 | AFFORDABLE COMMUNICATION SYSTEMS, INC. | C | 815 347-7039 |
| 3200 | AIRPORT ELECTRIC COMPANY | A | 773 735-5757 |
| 3900 | AL-ECTRIC, INC. | A | 708 457-2201 |
| 3660 | ALARMTECH, INC. | C | 708 783-1400 |
| 3652 | ALCON ELECTRICAL CONSTRUCTION , INC | A | 630-920-3878 |
| 3800 | ALDRIDGE ELECTRIC, INC. | A | 847-680-5200 |
| 3800 | ALDRIDGE ELECTRIC, INC. | C | 847-680-5200 |
| CHK10025 | ALKCO LIGHTING | MANUFACTURING | 708 451-0700 |
| 4150 | ALL CONSTRUCTION ELECTRIC, INC. | A | 708 371-9680 |
| 4200 | ALL ELECTRIC 1956, INC. | A | 708 448-5300 |
| 4670 | ALL PHASE ELECTRIC CO. | A | 847-545-1300 |
| 4760 | ALL PHASE ELECTRICAL CONTRACTORS, INC. | A | 708 283-6988 |
| S5105 | ALL RIGHT SIGN INC. | SIGN | 708 754-6366 |
| 5100 | ALL SUBURBAN ELECTRIC CONSTR. COMPANY, INC. | A | 847 253-7043 |
| 9800 | ALL TECH ENERGY, INC. | A | 847-882-0500 |
| L09800 | ALL TECH ENERGY, INC. | LM | 847-882-0500 |
| 5170 | ALL-TECH ELECTRICAL CONSTRUCTION CO. | A | 708-371-4411 |
| 4435 | ALLIANCE ELECTRIC & COMMUNICATIONS, INC. | A | 708-636-6222 |
| 4440 | ALLIED ELECTRIC & COMMUNICATIONS, INC. DBA AECOMM | C | 630-873-5200 |
| X10000 | ALLSTATE ARENA | GENERAL | 847 635-8601 |
| 5400 | ALRON ELECTRIC INCORPORATED | A | 815 463-1355 |
| 54700 | ALTHOFF INDUSTRIES, INC. | A | 847-428-5700 |
| 54700 | ALTHOFF INDUSTRIES, INC. | R | 847-428-5700 |
| 5711 | AMBER MECHANICAL CONTRACTORS, INC. | C | 708-597-3143 |
| 120 | AMC TELEPHONE SERVICE, INC. | C | 847 439-1120 |
| 5875 | AMERICAN BACKHOE SERVICE & EXCAVATING COMPANY | A | 815-469-2100 |
| CHK10010 | AMERICAN DISTRICT TELEGRAPH (ADT) | C | 630-218-7521 |
| 5900 | AMERICAN ELECTRIC CONSTRUCTION COMPANY, L.L.C. | A | 847 301-1790 |
| 5850 | AMERICAN ELECTRICAL, INC. | A | 815 727-0777 |
| S10190 | AMERICAN SIGN & LIGHTING CO. | SIGN | 630-766-8855 |
| 6412 | AMP ELECTRIC, INC. | A | 608-299-0180 |
| 6412 | AMP ELECTRIC, INC. | C | 608-299-0180 |
| 6400 | AMP RITE ELECTRIC COMPANY, INC. | A | 630 393-9400 |
| 6400 | AMP RITE ELECTRIC COMPANY, INC. | C | 630 393-9400 |
| 6400 | AMP RITE ELECTRIC COMPANY, INC. | R | 630 393-9400 |
| 6160 | AMPERE ELECTRIC COMPANY | A | 630-893-1400 |
| 6160 | AMPERE ELECTRIC COMPANY | C | 630-893-1400 |
| 6310 | AMS MECHANICAL SYSTEMS, INC. | A | 630 887-7700 |
| 6310 | AMS MECHANICAL SYSTEMS, INC. | C | 630 887-7700 |
| 6320 | AMTECH PRO AUDIO | A | 219 931-4125 |
| 6500 | ANCHOR ELECTRIC CORPORATION | A | 630 682-0145 |
| 6610 | ANCHOR ELECTRICAL MAINTENANCE | A | 312-492-6994 |
| 10045 | ANDERSON PUMP SERVICE, INC. | A | 708 478-6190 |
| 10045 | ANDERSON PUMP SERVICE, INC. | C | 708 478-6190 |
| M10045 | ANDERSON PUMP SERVICE, INC. | MAINT | 708 478-6190 |
| 7320 | APOLLO K. ELECTRIC | A | 708 349-2352 |
| 7500 | APPLE CONCRETE CORING CO. | A | 708 350-1213 |
| 7460 | APPLIED COMMUNICATIONS GROUP, INC. | C | 630 529-1020 |
| 7440 | APPLIED CONTROLS, INC. | A | 630 836-9440 |
| 7700 | AR-CORE ENTERPRISES, INC. | A | 708 594-2816 |
| 7880 | ARC 1 ELECTRIC, INC. | A | 630-212-5437 |
| 8100 | ARCO ELECTRIC COMPANY | A | 708 891-7000 |
| M10050 | ARCO ELECTRIC COMPANY | MAINT | 708 891-7000 |
| 8300 | ARDON ELECTRIC COMPANY | A | 708 599-9099 |
| 8500 | ARGO ELECTRIC, INC. | A | 630-833-9925 |
| 8600 | ARGON ELECTRIC CO., INC. | A | 847 364-2200 |
| R01000 | ARLINGTON INT’L. RACECOURSE, INC. (CAMERA) | RACE | 847 255-4300 |
| R00100 | ARLINGTON INTERNATIONAL RACECOURSE, INC. D/B/A ARL | RACE | 847 |
| R00200 | ARLINGTON INTL. RACECOURSE D/B/A TRACKSIDE WAUKEGA | RACE | 708 255-4300 |
| 9345 | ASHBURN POWER & LIGHT, INC. | A | 708-293-1566 |
| 9380 | ASSOCIATED ELECTRICAL CONTRACTORS, INC. | A | 815 337-6600 |
| 9380 | ASSOCIATED ELECTRICAL CONTRACTORS, INC. | C | 815 337-6600 |
| 9385 | AT & T (NATIONAL AGREEMENT) | C | |
| 3620 | AT&T, INC. | C | 847-248-8824 |
| 9600 | AULINGER ELECTRIC, INC. | A | 847 428-6662 |
| 9700 | AUSTGENS ELECTRIC, INC. | A | 219 924-7528 |
| 9710 | AUSTIN ELECTRIC, INC., CBA MORRIS, INC. D/B/A | A | 630 323-9382 |
| 10000 | AUTOMATIC BUILDING CONTROLS, INC. | A | 847-296-4000 |
| X10020 | AUTOMATIC DOORS, INC. | GENERAL | 630 837-4496 |
| 10010 | AUTOMATION & NETWORK SOLUTIONS, INC. | A | 847-360-0870 |
| 49650 | AVAYA | C | |
| 10745 | BALASSONE, INC. | A | 815-954-7088 |
| 10730 | BALLARD COMPANIES, INC. | A | 815 229-1800 |
| 10960 | BANDWIDTH MANAGEMENT, INC. | A | 630 669-1200 |
| 10960 | BANDWIDTH MANAGEMENT, INC. | C | 630 669-1200 |
| 10960 | BANDWIDTH MANAGEMENT, INC. | R | 630 669-1200 |
| 11355 | BARTLETT POWER & LIGHTING INC. | A | 630-441-6014 |
| 11359 | BARTON ELECTRIC, INC. | A | 618-654-6626 |
| M11375 | BEACON SALES, SERVICE & INSTALLATION, INC. | MAINT | (708) 442-7442 |
| 11500 | BEL-AIRE ELECTRIC COMPANY | A | 847-548-7596 |
| 11700 | BELCORE ELECTRIC CONSTRUCTION CO. | A | 708 345-1344 |
| M10060 | BELCORE ELECTRIC CONSTRUCTION CO. | MAINT | 708 345-1344 |
| 11600 | BELEC ELECTRICAL, INC. | A | 847 967-6111 |
| 10200 | BELMONT & LEAVITT CORP. D/B/A AVONDALE ELECTRIC | A | 847 981-9980 |
| 11650 | BENCHMARK COMMUNICATIONS, INC. | C | 630-577-2625 |
| 11900 | BENSON ELECTRIC OF CHICAGO, INC. | A | 708-456-8880 |
| 12000 | BENSON ELECTRICAL CONTRACTING, INC. | A | 815-455-2260 |
| 13155 | BERNARDONI ELECTRIC, INCORPORATED | A | 847 697-2600 |
| X10030 | BERRY ELECTRIC COMPANY | MAINTENANCE | 708 547-9300 |
| 13200 | BERRY ELECTRIC CONTRACTING, CO. | A | 708 547-9300 |
| 13200 | BERRY ELECTRIC CONTRACTING, CO. | C | 708 547-9300 |
| 13250 | BERTHEL LEWIS ELECTRIC, INC. | A | 708-387-7249 |
| SB0800 | BERTHOLD ELECTRIC CO., GUS | SWITCH | (312) 243-5767 |
| SB0800 | BERTHOLD ELECTRIC CO., GUS | SWITCH | 312-243-5767 |
| 13320 | BESAM US INC. | GENERAL | 847-228-5600 |
| S10020 | BEST NEON SIGN CO. | SIGN | 773 586-2700 |
| 13800 | BLAZE ELECTRIC CORP. | A | 708-344-0600 |
| 13900 | BLOCK ELECTRIC CO., INC. | A | 847 647-4030 |
| 13935 | BME ELECTRIC, INC. | A | 708-670-5014 |
| 13940 | BO-BERG COMMUNICATIONS, INC. | C | 630 595-9360 |
| X10035 | BOARD OF EDUCATION SCHOOL DISTRICT # 89 | GENERAL | (708) 450-2460 |
| 57300 | BONAPARTE CORPORATION | A | 312 431-9750 |
| 57300 | BONAPARTE CORPORATION | C | 312 431-9750 |
| M57300 | BONAPARTE CORPORATION | MAINT | 312 431-9750 |
| 14401 | BONUS ELECTRIC, INC., L.L.C. | A | 630 257-3336 |
| 14401 | BONUS ELECTRIC, INC., L.L.C. | C | 630 257-3336 |
| 14401 | BONUS ELECTRIC, INC., L.L.C. | R | 630 257-3336 |
| 14500 | BOSS ELECTRIC, INC. | A | 708 339-2677 |
| 14560 | BOYD ELECTRIC, INC. | A | 708-952-4500 |
| 14560 | BOYD ELECTRIC, INC. | C | 708-952-4500 |
| 14560 | BOYD ELECTRIC, INC. | R | 708-952-4500 |
| M10080 | BOYD ELECTRIC, INC. | MAINT | 708-952-4500 |
| 14950 | BRANDENBURG INDUSTRIAL SERVICE CO. | A | 312 326-5800 |
| 15085 | BRENNAN ELECTRIC | A | 708-704-1419 |
| 15400 | BROADWAY ELECTRIC, INC. | A | 847-593-0001 |
| 15400 | BROADWAY ELECTRIC, INC. | C | 847-593-0001 |
| 15400 | BROADWAY ELECTRIC, INC. | R | 847-593-0001 |
| 15500 | BROCKTON ELECTRIC, INC. | A | 708 425-9885 |
| 15500 | BROCKTON ELECTRIC, INC. | R | 708 425-9885 |
| 15700 | BROWN ELECTRIC SERVICE, INC. | A | 773 586-0500 |
| 15570 | BUILDERS CHICAGO CORPORATION | A | 773- 626-4122 |
| 16000 | BURKE ELECTRICAL CONSTRUCTION COMPANY | A | 815 469-9211 |
| 16030 | BURNS ELECTRIC COMPANY, JOHN | A | 708-326-3500 |
| 530 | BUSINESS TELEPHONE SYSTEMS, INC. | C | 847 640-8213 |
| 660 | C & C COMMUNICATIONS – DIV. OF KASC, INC. | C | 708-478-7400 |
| 17780 | C-N-D ELECTRICAL CONTRACTORS, INC. | A | (708) 479-6738 |
| 17770 | C.A.S.E. CONSTRUCTION AND ELECTRICAL CONTRACTORS, | A | 708 672-5320 |
| M17770 | C.A.S.E.CONSTRUCTION AND ELECTRICAL CONTRACTORS, I | MAINT | 708 672-5320 |
| 16700 | CABLE COMMUNICATIONS, INC. | A | 773 925-1344 |
| 16700 | CABLE COMMUNICATIONS, INC. | C | 773 925-1344 |
| 16700 | CABLE COMMUNICATIONS, INC. | R | 773 925-1344 |
| M16700 | CABLE COMMUNICATIONS, INC. | MAINT | 773-925-1344 |
| 16850 | CABLE ELECTRIC COMPANY, INC. | A | 708 458-8900 |
| 9615 | CABLETECH COMMUNICATIONS, INC. | C | 708-478-8181 |
| 9650 | CAL COMMUNICATIONS, INC. | C | 847-537-2425 |
| CHK09650 | CAL COMMUNICATIONS, INC. (CIRCUIT BOARDS) | MUNICIPAL | 847-537-2425 |
| 15330 | CAMBRIDGE ELECTRIC, INC. | A | 630-365-0556 |
| 17120 | CAMEO ELECTRIC, INC. | A | 708-836-1870 |
| 17120 | CAMEO ELECTRIC, INC. | R | 708-836-1870 |
| 17160 | CAMPBELL ELECTRIC, INC. | A | 708-715-2445 |
| 17200 | CANDOR ELECTRIC, INC. | A | 773 778-2626 |
| 17200 | CANDOR ELECTRIC, INC. | C | 773 778-2626 |
| 17400 | CANINO ELECTRIC CO. | A | 708 681-2800 |
| 17570 | CARDINAL POWERCOMM, INC. | C | 630 832-3072 |
| 17800 | CAREY ELECTRIC CONTRACTING, INC. | A | (815) 385-3600 |
| 17712 | CAREY’S ELECTRIC ENTERPRISES, INC. | A | 708 532-2449 |
| 17720 | CARLYN ELECTRICAL CONSTRUCTION, INC. | A | 847-690-0001 |
| 18000 | CATTANEO ELECTRIC COMPANY | A | 630 971-0692 |
| L09710 | CBA MORRIS, INC. D/B/A AUSTIN ELECTRIC, INC. | LM | 630 323-9382 |
| 17765 | CCS UTILITIES CORPORATION | A | 815-722-0451 |
| 17765 | CCS UTILITIES CORPORATION | C | 815-722-0451 |
| 18061 | CE & J COMM TECH INC. | C | 708-337-3262 |
| 18060 | CECO, INC. | A | (312) 662-0134 |
| 18060 | CECO, INC. | C | (312) 662-0134 |
| 18300 | CHATFIELD ELECTRIC, INC. | A | 847 509-1660 |
| 18300 | CHATFIELD ELECTRIC, INC. | R | 847 509-1660 |
| 15420 | CHICAGO COMMUNICATION SYSTEMS, INC. | C | 847 956-8500 |
| C00100 | CHICAGO COMMUNICATIONS, LLC | C | 630 832-3311 |
| 18700 | CHICAGO HEIGHTS CARRIER ELECTRIC COMPANY | A | 708 755-7700 |
| HOT003 | CHICAGO HILTON & TOWERS | HOTEL | 312-786-6285 |
| 18800 | CHICAGO LIGHT & POWER, INC. | A | 708 430-4711 |
| HOT012 | CHICAGO O’HARE HILTON AIRPORT HILTON HOTEL | HOTEL | 312-601-2336 |
| MUN030 | CHICAGO PARK DISTRICT | MUNICIPAL | 312-742-4441 |
| 18850 | CHICAGO POWER & COMMUNICATIONS, INC. | C | 773-646-6000 |
| 18850 | CHICAGO POWER & COMMUNICATIONS, INC. | A | 773-646-6000 |
| 18870 | CHICAGO POWER TECHNOLOGY, LLC | A | 312-733-1050 |
| CHK10085 | CHICAGO SCHOOL REFORM BOARD OF TRUSTEES | MUNICIPAL | 312 890-3770 |
| X10060 | CHICAGO STATE UNIVERSITY | MUNICIPAL | 773 995-2040 |
| X10070 | CHICAGO SUN-TIMES, INC. | MAINTENANCE | 312 321-2317 |
| X10310 | CHICAGO SYMPHONY ORCHESTRA ASSOCIATION | GENERAL | 312-294-3255 |
| CHK10175 | CHICAGO TRANSIT AUTHORITY | MUNICIPAL | 312-681-4100 |
| CHK10175 | CHICAGO TRANSIT AUTHORITY | MUNICIPAL | 312-664-7200 |
| CHK10180 | CHICAGO TRANSIT AUTHORITY (CONTROLLERS) | MUNICIPAL | 312-681-4100 |
| CHK10182 | CHICAGO TRANSIT AUTHORITY (ROADMASTERS) | GENERAL | |
| CHK10181 | CHICAGO TRANSIT AUTHORITY (YARDMASTERS) | GENERAL | |
| 8920 | CHICAGOLAND CABLING SOLUTIONS, INC. | C | 630-678-1100 |
| 8950 | CHICAGOLAND ELECTRI-COMM, INC. | A | 773-925-9292 |
| 8950 | CHICAGOLAND ELECTRI-COMM, INC. | C | 773-925-9292 |
| 19500 | CINCO ELECTRIC, INC. | A | 847 632-1800 |
| 10020 | CITY COMMUNICATIONS, INC. | C | 630 462-0019 |
| 19750 | CITY LIGHTS, LTD. | A | 773-626-9162 |
| MUN050 | CITY OF CHICAGO | MUNICIPAL | 312 |
| 19715 | CITY SERVICE ELECTRIC, INC. | A | (773) 282-7186 |
| 20091 | CLE ELECTRICAL SERVICES, INC. | A | 630-512-1433 |
| 20177 | COBRA CONCRETE CUTTING SERVICES, CO. | A | (773) 775-1111 |
| 20177 | COBRA CONCRETE CUTTING SERVICES, CO. | A | 773-775-1111 |
| 20190 | CODE ENGINEERING SERVICES | A | 630 953-8586 |
| 20190 | CODE ENGINEERING SERVICES | LM | 630 953-8586 |
| 25020 | COLLETTE M. DAILEY ELEC. CONTRACTORS, INC. D/B/A: | A | 847-359-9789 |
| 25020 | COLLETTE M. DAILEY ELEC. CONTRACTORS, INC. D/B/A: | C | 847-359-9789 |
| 25020 | COLLETTE M. DAILEY ELEC. CONTRACTORS, INC. D/B/A: | R | 847-359-9789 |
| 20450 | COMM-TEST ELECTRIC | A | 773 239-1924 |
| 20250 | COMMERCIAL ELECTRIC LLC | A | 815 464-7350 |
| 20260 | COMMERCIAL ELECTRONIC SYSTEMS, INC. | C | 815 741-3333 |
| 20400 | COMMODORE ELECTRIC CO. | A | 708 681-1191 |
| 20640 | COMMUNICATION CONTRACTORS, INC. D/B/A BLACK BOX NE | C | 724-873-6511 |
| 10160 | COMMUNICATION SPECIALTIES, INC. | C | 630-588-9873 |
| 20660 | COMMUNICATION ZONE, INC. | C | 312 563-9460 |
| 1430 | COMPLETE CABLING SOLUTIONS, INC. | C | 630-521-1970 |
| 20900 | COMPLETE ELECTRICAL SERVICE | A | 630 879-1098 |
| 21100 | COMPTEC ELECTRICAL SERVICES, INC. | A | 847 541-1700 |
| 21100 | COMPTEC ELECTRICAL SERVICES, INC. | C | 847 541-1700 |
| 21210 | COMTECH SECURITY, L.L.C. | C | 630-243-0700 |
| 21600 | CONCUR ELECTRIC COMPANY, INC. | A | 708 396-8766 |
| 21865 | CONNOR ELECTRIC SERVICES | A | 847-417-1102 |
| 22010 | CONTINENTAL ELECTRIC CO., INC. | A | 219 938-3460 |
| 22300 | CONTINENTAL ELECTRICAL CONSTRUCTION COMPANY, LLC | A | 847 677-1600 |
| 22300 | CONTINENTAL ELECTRICAL CONSTRUCTION COMPANY, LLC | C | 847 677-1600 |
| 22300 | CONTINENTAL ELECTRICAL CONSTRUCTION COMPANY, LLC | R | 847 677-1600 |
| M10110 | CONTINENTAL ELECTRICAL CONSTRUCTION COMPANY, LLC | MAINT | 847 677-1600 |
| 22400 | CONTRACTORS POWER & LIGHT COMPANY | A | 708 331-1422 |
| 22540 | CONTROL ENGINEERING CORP. | A | 630 954-1300 |
| 22610 | COOK CORPORATION, D. L. | A | 630-554-2982 |
| 22580 | COOK-LAVELLE ELECTRIC, INC. | A | 847-982-9910 |
| CHK10450 | COOPER LIGHTING, INC. | MANUFACTURING | 770 486-4800 |
| 22800 | CORE-VETTE CORING & SAWING, INC. | A | 847 698-5080 |
| 22925 | CORPORATE ELECTRIC, INC. | A | 847-963-2800 |
| 22950 | CORRECT ELECTRIC, INC. | A | 815-496-3000 |
| 22950 | CORRECT ELECTRIC, INC. | C | 815-496-3000 |
| 23020 | COTTER HALL ELECTRIC, INC. | A | 708 403-2285 |
| MUN070 | COUNTY OF COOK – FOREST PRESERVE | MUNICIPAL | 708-771-1058 |
| MUN060 | COUNTY OF COOK/SHERIFF OF COOK COUNTY | MUNICIPAL | 312 443-3300 |
| 23178 | COUNTYWIDE DETECTIVE BUREAI INC. | C | 773-229-0300 |
| CHK10780 | COURT REPORTERS OF THE CHIEF JUDGE OF COOK COUNTY | GENERAL | |
| 23120 | COURTESY ELECTRIC, INC. | A | 847 854-5140 |
| 23320 | CREATIVE ELECTRICIANS, INC. | A | 773 637-7987 |
| 23320 | CREATIVE ELECTRICIANS, INC. | R | 773 637-7987 |
| 23560 | CROSS POINTS, INC. | C | 847 888-1800 |
| 23600 | CROSSTOWN ELECTRIC, INC. | A | 847-439-1234 |
| M10120 | CROSSTOWN ELECTRIC, INC. | MAINT | 773 292-1234 |
| 9415 | CSF SECURITY SYSTEMS, INC. | C | 773-283-2948 |
| 23900 | CULLEN ELECTRIC CO. | A | 773 768-4420 |
| 24100 | CURRENT COMMUNICATIONS & ELECTRIC CORPORATION | A | 708 786-3400 |
| 24100 | CURRENT COMMUNICATIONS & ELECTRIC CORPORATION | C | 708 786-3400 |
| 24053 | CUSTOM AUDIO VISUAL SOLUTIONS, INC. | C | 630-892-7359 |
| 24054 | CUSTOM CONCRETE CUTTING, INC. | A | 815-790-1178 |
| 79305 | CUSUMANO ELECTRICAL SERVICES, LLC | A | 630-682-1066 |
| 79310 | CUTTING EDGE | A | 773-362-2061 |
| 24810 | D & T ELECTRIC, INC. | A | 847-691-4631 |
| 24600 | D AND J ELECTRIC, INC. | A | 773 586-5500 |
| 24600 | D AND J ELECTRIC, INC. | C | 773 586-5500 |
| 24730 | D N D ELECTRIC, INC. | A | 630-585-0933 |
| 24730 | D N D ELECTRIC, INC. | C | 630-585-0933 |
| 25000 | DAHL ELECTRIC CO. | A | 847-627-4258 |
| 25225 | DATA CABLE SOLUTIONS, INC. | C | 708-288-9437 |
| 25450 | DATECH ELECTRIC INC. | A | 773 777-6444 |
| 25450 | DATECH ELECTRIC INC. | C | 773 777-6444 |
| 25453 | DAUFENBACH ELECTRIC, INC. | A | 847-464-1060 |
| 25452 | DAV COM ELECTRIC, INC. | A | 708-444-2056 |
| 25452 | DAV COM ELECTRIC, INC. | C | 708-444-2056 |
| 25458 | DAX ELECTRIC, INC. | A | 773 283-1238 |
| 25520 | DAYS CORPORATION | A | 574-264-4121 |
| X10080 | DE PAUL UNIVERSITY | GENERAL | (312) 362-8762 |
| X10080 | DE PAUL UNIVERSITY | GENERAL | 312 362-8682 |
| X10090 | DEARBORN HOMES RESIDENT MANAGEMENT CORP. | GENERAL | 312 326-3730 |
| 25540 | DEERFIELD ELECTRIC COMPANY, INC. | A | 847 272-6700 |
| 10630 | DIRECT ELECTRICAL SERVICES INC. | A | 815-505-7451 |
| 26900 | DIVANE BROTHERS ELECTRIC CO. | C | 847 455-7143 |
| 26900 | DIVANE BROTHERS ELECTRIC CO. | R | 847 455-7143 |
| 26900 | DIVANE BROTHERS ELECTRIC CO. | A | 847 455-7143 |
| 24222 | DJ ELECTRICAL CONSTRUCTION, INC. | A | 708-712-4111 |
| 24222 | DJ ELECTRICAL CONSTRUCTION, INC. | C | 708-712-4111 |
| 24750 | DNR ELECTRICAL CONTRACTORS, INC. | A | 708 681-2074 |
| 24750 | DNR ELECTRICAL CONTRACTORS, INC. | R | 708 681-2074 |
| 27160 | DONGARRA ELECTRIC, INC. | A | 630 243-8387 |
| 27212 | DOUBLE A ELECTRIC COMPANY, INC. | A | 815-609-7367 |
| HOT009 | DOUBLETREE HOTEL CHICAGO MAGNIFICENT MILE | HOTEL | 312-224-2129 |
| 27220 | DOYLE SIGNS, INC. | A | 630 543-9490 |
| S10040 | DOYLE SIGNS, INC. | SIGN | 630 543-9490 |
| 27295 | DRW SERVICES, INC. | MAINT | 708-758-3222 |
| 27410 | DSM ENTERPRISES, INC. | A | 630-897-0200 |
| 111115 | DUDE TESTING AND LOCATING LLC | A | 815-293-3388 |
| CHK10225 | DURAY/ESCO | MANUFACTURING | 312 271-2800 |
| 27600 | DURKIN ELECTRIC COMPANY INC. | A | 708-388-8800 |
| 27600 | DURKIN ELECTRIC COMPANY INC. | C | 708-388-8800 |
| 27700 | DYNAMIC ELECTRIC, INC. | A | 708 597-6500 |
| 27700 | DYNAMIC ELECTRIC, INC. | C | 708 597-6500 |
| 27900 | DYROS ELECTRIC, INC. | A | (847) 593-9700 |
| 28070 | E.G.F. ELECTRIC | A | 815 469-9333 |
| MOT100 | EBLING ELECTRIC COMPANY | MOTOR | 312 455-1885 |
| 28610 | ECO LIGHTING SERVICES AND TECHNOLOGY LLC | LM | 847-464-7336 |
| 28610 | ECO LIGHTING SERVICES AND TECHNOLOGY LLC | A | 847-464-7336 |
| 29010 | EFFECTIVE ELECTRIC, INC. | A | 773-889-8204 |
| 29210 | ELECTRIC ONE, INC. | A | 708-535-3001 |
| 29210 | ELECTRIC ONE, INC. | R | 708-535-3001 |
| 29552 | ELECTRIC-S LLC | A | 847-980-4700 |
| 29560 | ELECTRICAL APPLICATIONS, INC. | A | 708 499-4065 |
| 11 | ELECTRICAL CONTRACTORS ASSOC. OF CITY OF CHICAGO | R | 708 531-0022 |
| 29500 | ELECTRICAL CONTRACTORS, INC. | A | 847 949-0134 |
| 29500 | ELECTRICAL CONTRACTORS, INC. | R | 847 949-0134 |
| M10150 | ELECTRICAL CONTRACTORS, INC. | MAINT | 847 949-0134 |
| 29600 | ELECTRICAL DESIGN SYSTEMS CORP. | A | 630 499-7800 |
| 29600 | ELECTRICAL DESIGN SYSTEMS CORP. | C | 630 499-7800 |
| 29630 | ELECTRICAL DYNAMICS, INC. | A | 847-670-9800 |
| L29630 | ELECTRICAL DYNAMICS, INC. | LM | 847-670-9600 |
| M29630 | ELECTRICAL DYNAMICS, INC. | MAINT | 847 670-9600 |
| 29605 | ELECTRICAL ENERGY EXPERTS, INC. | A | 262-255-5222 |
| 29635 | ELECTRICAL SOLUTIONS BY PILON, INC. | A | 708-362-2493 |
| 29800 | ELECTRICAL SYSTEMS, INC. | A | 708-647-1300 |
| 29810 | ELECTRICAL TESTING TECHNOLOGIES, INC. | A | 847 483-3900 |
| 29752 | ELECTRICORP, INC. | A | 815-693-5259 |
| 29755 | ELECTRO FORCE LLC | A | 847-998-8559 |
| 29770 | ELECTRONIC TECHNOLOGIES CORP. NORTHEAST | A | 317-810-3181 |
| 29770 | ELECTRONIC TECHNOLOGIES CORP. NORTHEAST | C | 317-810-3181 |
| 29900 | ELITE ELECTRIC COMPANY | A | 708-343-5570 |
| 29900 | ELITE ELECTRIC COMPANY | C | 708-343-5570 |
| 29900 | ELITE ELECTRIC COMPANY | R | 708-343-5570 |
| 40250 | EMCOR HYRE ELECTRIC CO. OF INDIANA, INC. | A | 219-923-6100 |
| 40250 | EMCOR HYRE ELECTRIC CO. OF INDIANA, INC. | C | 219-923-6100 |
| 30085 | EMM ELECTRIC, INC. D/B/A MORAN ELECTR. CONTRACTING | A | 708 597-9011 |
| 30085 | EMM ELECTRIC, INC. D/B/A MORAN ELECTR. CONTRACTING | R | 708 597-9011 |
| 11025 | EMRE, INC. | A | 708 889-1439 |
| 3170 | ENERTEC, INC. | A | 414 365-0500 |
| 30082 | ENGINEERED SERVICES, INC. D/B/A POWERLINK ELECTRIC | A | 847-850-5666 |
| 30100 | ENVIRO DYNAMIC SYSTEMS, INC | A | 847 729-4115 |
| SB0500 | ERICKSON ELECTRICAL EQUIPMENT COMPANY | SWITCH | 847-640-7701 |
| SB0500 | ERICKSON ELECTRICAL EQUIPMENT COMPANY | SWITCH | (847) 640-7701 |
| 19300 | ERIK ELECTRIC CORP. D/B/A CHRIS ELECTRIC CORP. | A | 847-201-1260 |
| 30300 | ERLAND’S ELECTRICAL CONTRACTORS, INC. | A | 847 729-1100 |
| CHK10480 | ESCO LIGHTING, INC. | MANUFACTURING | 773 427-7000 |
| 30380 | EVAN’S ELECTRIC, LLC | A | 708-439-1400 |
| 30470 | EVERGREEN ELECTRIC CO. | A | 708 499-6130 |
| 30470 | EVERGREEN ELECTRIC CO. | C | 708 499-6130 |
| 20630 | EXACT ELECTRICAL SERVICES, INC. | A | 630-830-8061 |
| 30675 | EXCEL ELECTRIC, INC. | A | 815 464-5550 |
| S10050 | EXPRESS SIGN & LIGHTING MAINTENANCE, INC. | SIGN | 815 725-9080 |
| 30775 | EXTRA ELECTRIC LLC | A | 630-514-8242 |
| 27960 | EZ ELECTRIC, INC. | A | 304 736-8659 |
| 30850 | FAC ELECTRIC, INC. | C | 708 535-2155 |
| 30860 | FACILITY TECHNOLOGIES, LLC | A | 847-909-7537 |
| 30860 | FACILITY TECHNOLOGIES, LLC | C | 847-909-7537 |
| 31260 | FARRELL ELECTRIC CO. | A | 708 422-7684 |
| CHK10300 | FEDERAL SIGNAL CORPORATION | MANUFACTURING | 708 534-3400 |
| 31700 | FENNELL ELECTRIC, INC. | A | 708-535-1000 |
| X10130 | FINKLE & SONS CO., A | MAINTENANCE | 773-975-2500 |
| 15520 | FIRE AND SECURITY SPECIALIST | C | 708 371-3007 |
| 15530 | FIRE PROS, INC. | A | 630-705-0743 |
| 15530 | FIRE PROS, INC. | C | 630-705-0743 |
| 15650 | FIRETEK, LLC | C | 847-417-1102 |
| 15620 | FIRST SECURITY SYSTEMS, INC. | A | 630 961-5900 |
| 15620 | FIRST SECURITY SYSTEMS, INC. | C | 630 961-5900 |
| 32700 | FOSTER ELECTRIC GROUP, INC. | A | 773 651-4400 |
| 32700 | FOSTER ELECTRIC GROUP, INC. | C | 773 651-4400 |
| 32700 | FOSTER ELECTRIC GROUP, INC. | R | 773 651-4400 |
| 32800 | FOUR STAR ELECTRIC, INC. | A | 847 301-2220 |
| 32800 | FOUR STAR ELECTRIC, INC. | C | 847 301-2220 |
| 32910 | FOX ELECTRICAL CONTRACTING, INC. | A | 815 463-1377 |
| 72760 | FREEMAN ELECTRICAL, INC. | A | 773-379-5040 |
| 33600 | G & M ELECTRICAL CONTRACTORS CO. | A | 773 278-8200 |
| 33600 | G & M ELECTRICAL CONTRACTORS CO. | C | 773 278-8200 |
| 33560 | G. M. ELECTRIC, INC. | A | 708 331-4622 |
| 33760 | G. S. ELECTRIC CO., INC. | A | 708-326-4610 |
| 33800 | G. S. K. ELECTRIC, INC. | A | 847 679-4346 |
| 33890 | GALAXY ENTERPRISES, INC. | A | 847 923-1100 |
| 33890 | GALAXY ENTERPRISES, INC. | R | 847 923-1100 |
| 33895 | GALVANIC ELECTRIC CO., INC. | A | 630 241-0780 |
| 34225 | GARDEN ELECTRIC INC | A | 708-444-0776 |
| 34400 | GARRETT ELECTRIC COMPANY | A | 773 924-7827 |
| 34500 | GEARY ELECTRIC, INC. | A | 847-509-0540 |
| 34500 | GEARY ELECTRIC, INC. | C | 847-509-0540 |
| 34525 | GEM INTEGRATION, INC. | C | 224-535-8701 |
| CHK10430 | GENERAL ELECTRIC SERVICE CO. – CHICAGO ZONES SALES | APPLIANCE SERVICE | 815-462-1107 |
| 34800 | GENESIS ELECTRIC, INC. | A | 847 670-2992 |
| X34820 | GENEX CORPORATION | GENERAL | 630-964-8400 |
| X34820 | GENEX CORPORATION | A | 630-964-8400 |
| 34888 | GEO SERVICES, INC. D/B/A S & H ELECTRIC, COMPANY | A | 847-255-7300 |
| 34888 | GEO SERVICES, INC. D/B/A S & H ELECTRIC, COMPANY | R | 847-255-7300 |
| 35200 | GIBSON ELECTRIC CO., INC. | A | 630-288-3800 |
| 35200 | GIBSON ELECTRIC CO., INC. | C | 630-288-3800 |
| M35200 | GIBSON ELECTRIC CO., INC. | MAINT | 630 572-3500 |
| 35230 | GIGALINK, INCORPORATED | C | 847-384-9400 |
| 35600 | GIM ELECTRIC CO. INC. | A | 773- 286-7112 |
| 35875 | GLOBAL EXPERIENCE SPECIALIST, INC. D/B/A TRADES | A | 773-767-2237 |
| 36000 | GLOW ELECTRIC CO. | A | 708 389-7447 |
| 36090 | GOOD ELECTRIC, INC. | A | 773-777-8520 |
| 36095 | GOORSKY ELECTRIC, INC. | A | 815-726-1159 |
| 33729 | GRACE POWER & CONTROL | A | 630-669-5263 |
| 33730 | GRAF ELECTRIC, INC. | A | (708) 478-6089 |
| 36200 | GRAJER ELECTRIC, LLC | A | 773 631-4277 |
| 36300 | GRAND-KAHN, LLC | A | 708-333-4900 |
| 36300 | GRAND-KAHN, LLC | C | 708-333-4900 |
| S10080 | GRATE SIGNS, INC. | SIGN | 815 729-9700 |
| X10170 | GREAT LAKES AUTOMATIC DOOR, INC. | GENERAL | 313 547-5933 |
| X10170 | GREAT LAKES AUTOMATIC DOOR, INC. | GENERAL | 708 449-2060 |
| X10170 | GREAT LAKES AUTOMATIC DOOR, INC. | A | 313 547-5933 |
| X10170 | GREAT LAKES AUTOMATIC DOOR, INC. | A | 708 449-2060 |
| 36460 | GREAT LAKES ELECTRICAL CONTRACTORS, INC. | A | 847 831-9229 |
| 36470 | GREAT LAKES ELECTRICAL MAINTENANCE, INC. | A | 219 980-2710 |
| 3112 | GREATEST ELECTRICAL COMPANY | A | 815-356-1010 |
| 3150 | GREATLINE ELECTRIC, INC. | C | 708 331-8707 |
| 33820 | GTS ELECTRIC, INC. | A | 847-534-0650 |
| M10210 | GURTZ ELECTRIC CO. | MAINT | 847 734-2400 |
| 36800 | GURTZ ELECTRIC COMPANY | A | 847 734-2400 |
| 36800 | GURTZ ELECTRIC COMPANY | C | 847 734-2400 |
| 36800 | GURTZ ELECTRIC COMPANY | R | 847 734-2400 |
| 37150 | H. M. M. SYSTEMS, INC. | A | (708) 453-1215 |
| 37000 | HAMILTON ELECTRIC COMPANY, INC., J. | A | 847 640-8077 |
| 37250 | HANSEN ELECTRICAL SERVICES, INC. | A | 708-323-9424 |
| 37250 | HANSEN ELECTRICAL SERVICES, INC. | C | 708-323-9424 |
| 37400 | HARD ROCK CONCRETE CUTTERS, INC. | A | 847 699-0010 |
| 37500 | HARDT ELECTRIC INC. | A | 773 685-2200 |
| 37500 | HARDT ELECTRIC INC. | C | 773 685-2200 |
| 37500 | HARDT ELECTRIC INC. | R | 773 685-2200 |
| 37505 | HARDWARE TECHNOLOGIES, INC. | C | 708-758-7014 |
| 37600 | HARTMANN ELECTRICAL CONTR., INC. | A | 847 734-1260 |
| 37600 | HARTMANN ELECTRICAL CONTR., INC. | C | 847 734-1260 |
| R00500 | HAWTHORNE RACE COURSE, INC. | RACE | 708-780-3700 |
| 38150 | HAYES MECHANICAL, INC. | A | 773-784-0000 |
| 38210 | HEINZ CORPORATION | C | 314 231-1200 |
| 38300 | HELM ELECTRIC SERVICES, INC. | A | 708 579-1000 |
| 16622 | HENRY I. MCJUNKINS D/B/A SWIFT ELECTRICAL CONTRS. | A | 773-221-2041 |
| 38550 | HESS ELECTRICAL CONSTRUCTION, INC. | A | 815 478-7153 |
| 38600 | HICKEY ELECTRICAL CONTRACTORS, INC. | A | 708 535-1774 |
| 38660 | HIGH VOLTAGE ELECTRIC TESTING & MAINTENANCE | A | 630 584-2485 |
| 38675 | HIGH VOLTAGE MAINTENANCE CORP. | A | 847 228-9595 |
| 38670 | HIGH VOLTAGE MAINTENANCE CORPORATION | A | 262 784-3660 |
| 39000 | HINSDALE ELECTRIC CO. INC. | C | 630 629-8050 |
| 39000 | HINSDALE ELECTRIC CO. INC. | A | 630 629-8050 |
| 37520 | HLP SYSTEMS, INC. | A | 847-362-0777 |
| HOT008 | HOLIDAY INN MART PLAZA | HOTEL | 312-836-5000 |
| 39330 | HOME TOWNE ELECTRIC, INC. | A | 847 223-2800 |
| 39400 | HOMESTEAD ELECTRIC COMPANY | LM | 815 363-1222 |
| 39400 | HOMESTEAD ELECTRIC COMPANY | A | 815 363-1222 |
| 39420 | HORIZON CONTRACTORS, INC. | A | 312 850-3010 |
| 39420 | HORIZON CONTRACTORS, INC. | C | 312 850-3010 |
| M39420 | HORIZON CONTRACTORS, INC. | MAINT | 312 850-3010 |
| 39900 | HUEN ELECTRIC, INC. | A | 708 343-5511 |
| 39900 | HUEN ELECTRIC, INC. | C | 708 343-5511 |
| 39900 | HUEN ELECTRIC, INC. | R | 708 343-5511 |
| 40060 | HUSSMANN CORPORATION | A | 630 226-4880 |
| 40075 | HUSTON ELECTRIC, INC. | A | 765-451-9137 |
| 40100 | HY-POWER ELECTRIC CO. | A | 708-430-5510 |
| 40100 | HY-POWER ELECTRIC CO. | R | 708-430-5510 |
| HOT010 | HYATT REGENCY CHICAGO | HOTEL | 312-565-1234 |
| 40455 | ICOM, INC. | C | 630-512-0502 |
| 40460 | ICON ELECTRICAL CONTRACTORS INCORPORATED | A | 847 364-4266 |
| CHK10000 | ICON IDENTITY SOLUTIONS | MANUFACTURING | 708 364-2250 |
| S10000 | ICON IDENTITY SOLUTIONS, INC. | SIGN | 847 364-2250 |
| 40720 | ILLINOIS BUSINESS COMMUNICATIONS | C | 630 860-2266 |
| 40900 | ILLINOIS J. LIVINGSTON COMPANY | A | 847 439-5770 |
| 40900 | ILLINOIS J. LIVINGSTON COMPANY | C | 847 439-5770 |
| X10180 | ILLINOIS MASONIC MEDICAL | GENERAL | 773-296-7006 |
| X10180 | ILLINOIS MASONIC MEDICAL | GENERAL | (312) 975-1600 |
| 41255 | IMG TECHNOLOGIES, INC. | A | 630-737-9800 |
| 41255 | IMG TECHNOLOGIES, INC. | C | 630-737-9800 |
| L10020 | IMPERIAL LIGHTING MAINTENANCE | LM | 773 794-1150 |
| 40965 | IMPERIAL TECHNICAL SERVICES INC. | A | 708-873-0071 |
| 41035 | IN-LITE ELECTRICAL CONSTRUCTION CO., INC. | A | 630-659-4517 |
| 41100 | INDEPENDENT MECHANICAL INDUSTRIES | A | 773 282-4500 |
| 41110 | INDIGO CONSTRUCTION SERVICES, INC. | MAINT | (815) 463-9200 |
| 41110 | INDIGO CONSTRUCTION SERVICES, INC. | A | (815) 463-9200 |
| 15820 | INDUSTRIAL TELEVISION SERVICES, INC. | C | 847 671-4793 |
| 41251 | INFINITY ELECTRICAL GROUP, INC. | A | 630-564-1946 |
| 41251 | INFINITY ELECTRICAL GROUP, INC. | C | 630-564-1946 |
| 41450 | INTEGRATED ELECTRICAL SERVICES, L.L.C. | A | 708-839-9424 |
| 41450 | INTEGRATED ELECTRICAL SERVICES, L.L.C. | C | 708-839-9424 |
| CHK10700 | INTEGRATED POWER SERVICES | MOTOR | 708-877-5310 |
| 41500 | INTEGRISYS GROUP, LLC | C | 312-432-9800 |
| 41417 | INTEGRITY POWER & COMMUNICATION, INC. | A | 847-815-0051 |
| 41417 | INTEGRITY POWER & COMMUNICATION, INC. | C | 847-815-0051 |
| ISA001 | INTERNATIONAL SPECIALITY AGREEMENT | A | |
| VDV001 | INTERNATIONAL VDV AGREEMENT | C | |
| 16020 | INTERSTATE ELECTRONICS COMPANY | C | 630 789-8700 |
| 77465 | INTREN, INC. | A | 815-923-2300 |
| 1820 | IPC INFORMATION SYSTEMS, INC. | C | 312-332-5500 |
| 40470 | ISO COMMUNICATIONS, INC. | C | 773 582-3209 |
| 1825 | ITG SOLUTIONS, INC. | MAINT | 708-271-4700 |
| 1825 | ITG SOLUTIONS, INC. | C | 708-271-4700 |
| 36790 | J.J. JONES & COMPANY, LTD. | A | (630) 665-8227 |
| 42230 | JACK RUSSELL ELECTRIC CO., INC. | A | 630 365-0500 |
| 42230 | JACK RUSSELL ELECTRIC CO., INC. | C | 630 365-0500 |
| X10190 | JACKSON PARK HOSPITAL | GENERAL | 773 947-7512 |
| 42300 | JAMERSON & BAUWENS ELECTRICAL CONTRACTORS, INC. | A | 847 291-2000 |
| 42300 | JAMERSON & BAUWENS ELECTRICAL CONTRACTORS, INC. | C | 847 291-2000 |
| M10245 | JAMERSON & BAUWENS ELECTRICAL CONTRACTORS, INC. | MAINT | 847 291-2000 |
| 42400 | JAN ELECTRIC CO., INC. | A | 708 447-9122 |
| 42610 | JASCO ELECTRIC CORPORATION | A | 815 363-5905 |
| 42620 | JAY ELECTRIC COMPANY | A | 773- 277-3100 |
| 42650 | JAYMOR ELECTRIC, INC. | A | 847-265-0430 |
| 42655 | JBC ELECTRIC COMPANY | A | 847 922-5820 |
| 63700 | JC POWER & CONTROL, INC. II | A | 847 593-5060 |
| 42850 | JF ELECTRICAL CONTRACTORS, INC. | A | 847-818-0134 |
| 42860 | JIN ELECTRIC COMPANY | A | 773 777-9992 |
| 42860 | JIN ELECTRIC COMPANY | C | 773 777-9992 |
| 41930 | JM POLCURR, INC. | A | 708-450-1156 |
| 41930 | JM POLCURR, INC. | C | 708-450-1156 |
| 41930 | JM POLCURR, INC. | R | 708-450-1156 |
| 41950 | JMS ELECTRIC, INC. | LM | 847 352-3070 |
| 41950 | JMS ELECTRIC, INC. | A | 847 352-3070 |
| 41950 | JMS ELECTRIC, INC. | C | 847 352-3070 |
| 41950 | JMS ELECTRIC, INC. | R | 847 352-3070 |
| 41935 | JMS ELECTRICAL CONSTRUCTION, INC. | A | 815-693-6901 |
| 40570 | JNS POWER & CONTROL SYSTEMS, INC. | A | 773 467-8180 |
| 15225 | JOHN M. KELLEY ELECTRIC CORPORATION | A | 815-690-0051 |
| 43200 | JOLEN ELECTRIC AND COMMUNICATIONS, INC. | A | 773 768-8567 |
| 43200 | JOLEN ELECTRIC AND COMMUNICATIONS, INC. | C | 773 768-8567 |
| 43200 | JOLEN ELECTRIC AND COMMUNICATIONS, INC. | R | 773 768-8567 |
| 43230 | JONES ELECTRICAL | A | 773- 725-1555 |
| 43720 | K & E ELECTRIC INC. | A | 773-774-9900 |
| 43550 | K&K ELECTRICAL CONTROL, INC. | A | (773) 233-2308 |
| 43770 | K-TEL COMMUNICATIONS, INC. | C | 708-878-3380 |
| 43970 | K. L. ELECTRIC CO., INC. | A | 630 261-0025 |
| 43970 | K. L. ELECTRIC CO., INC. | C | 630 261-0025 |
| 44050 | KAISER ELECTRICAL CONTRACTORS, INC. | A | 309-263-8355 |
| 44100 | KALISH ELECTRIC CO. | A | 847 534-1267 |
| 44223 | KAR ELECTRIC, INC. | A | 708-805-2519 |
| 44225 | KASPER ELECTRIC COMPANY INC. | A | 773-617-6545 |
| 44250 | KASTLE CHICAGO LMT. PARTNERS | C | 312 849-8800 |
| 44355 | KAVANAUGH ELECTRIC, INC. | C | 708-503-1310 |
| 44355 | KAVANAUGH ELECTRIC, INC. | A | 708-503-1310 |
| 44355 | KAVANAUGH ELECTRIC, INC. | R | 708-503-1310 |
| 43975 | KBCOM, INC. D/B/A KB ADVANCED TECHNOLOGIES CO. | A | 847-259-0720 |
| 43975 | KBCOM, INC. D/B/A KB ADVANCED TECHNOLOGIES CO. | C | 847-259-0720 |
| 44535 | KELLENBERGER ELECTRIC, INC. | A | (847) 888-8192 |
| 44535 | KELLENBERGER ELECTRIC, INC. | C | (847) 888-8192 |
| 44550 | KELLEY ELECTRIC L.L.C., M.T. | MAINT | 708-396-9760 |
| 44550 | KELLEY ELECTRIC L.L.C., M.T. | A | 708-396-9760 |
| 44500 | KELSO-BURNETT CO. | A | 847-259-0720 |
| 44500 | KELSO-BURNETT CO. | C | 847-259-0720 |
| 44560 | KENDON ELECTRIC, INC. | A | 847-918-0382 |
| 44900 | KEVIN ELECTRIC CO. | A | 708 532-4800 |
| HOT002 | KHRG ALLEGRO, LLC | HOTEL | 312 236-0123 |
| 44310 | KII ELECTRICAL CONTRACTORS, INC. | A | 815-334-0300 |
| 450006 | KLASS ELECTRICL COMPANY, INC | R | 847-437-5555 |
| 450006 | KLASS ELECTRICL COMPANY, INC | A | 847-437-5555 |
| 450006 | KLASS ELECTRICL COMPANY, INC | C | 847-437-5555 |
| 45315 | KOBOTECH, INC. | GENERAL | 312-263-0074 |
| 45350 | KOEHLER ELECTRIC CO., INC. | A | 630-372-8602 |
| 45400 | KORDICK ELECTRIC CO. | A | 847 291-9990 |
| 45400 | KORDICK ELECTRIC CO. | R | 847 291-9990 |
| 45525 | KRAUSE ELECTRICAL CONTRACTORS INC. | A | 847-395-8774 |
| 45600 | KREYKES ELECTRIC, INC. | A | 708 895-0022 |
| 45700 | KROESCHELL, INC. | A | 312 649-7980 |
| 43974 | KTC ELECTRIC, LLC | A | 847-702-9609 |
| 45900 | KWASIGROCH ELECTRIC, INC. | A | 708 403-7808 |
| 45900 | KWASIGROCH ELECTRIC, INC. | C | 708 403-7808 |
| 46160 | L & S ELECTRIC CO., INC. | A | 219 932-8504 |
| 12130 | L.B.M. SECURITY SYSTEMS, INC. | C | 773 585-1244 |
| 21320 | L.L.D. ELECTRIC CO. | A | 847 856-1553 |
| 43095 | L.V.E. COMMUNICATIONS, LLC | C | 847-636-6401 |
| CHK10250 | L3 COMMUNICATIONS ELECTRODYNAMICS, INC. | MANUFACTURING | 847-259-0740 |
| 46900 | LA MARCHE ELECTRIC COMPANY | A | 815 463-0306 |
| 46900 | LA MARCHE ELECTRIC COMPANY | C | 815 463-0306 |
| 46300 | LACROSSE ELECTRIC CO. | A | 630 595-0200 |
| 46300 | LACROSSE ELECTRIC CO. | C | 630 595-0200 |
| 46315 | LADY LIGHTING & CONTRACTING CO. | A | 630-351-1140 |
| 46700 | LAKESIDE ELECTRIC, INC DBA LOMBARDI ELECTRIC, INC. | A | 630 825-0223 |
| 46700 | LAKESIDE ELECTRIC, INC DBA LOMBARDI ELECTRIC, INC. | C | 630 825-0223 |
| 47250 | LAUDERDALE ELECTRIC, INC. | A | 847-426-9900 |
| 47275 | LAURA GAWEL D/B/A RLG POWER & CONTROL | A | 630-548-4582 |
| 47758 | LETECH INC. | A | 262-653-9300 |
| 47758 | LETECH INC. | R | 262-653-9300 |
| 47760 | LEYDEN ELECTRIC, INC. | A | 630 365-0200 |
| 46210 | LIBERATORE ELECTRIC, CO. | A | 815-464-5566 |
| 47900 | LID ELECTRIC COMPANY | A | 847 215-1114 |
| 47900 | LID ELECTRIC COMPANY | R | 847 215-1114 |
| 48210 | LIGHTNING COMMUNICATIONS, INC. | C | 847 855-9139 |
| 48500 | LINEAR ELECTRIC, INC. | A | 708 687-8850 |
| 49200 | LITGEN CONCRETE CUTTING & CORING CO., INC. | A | (847) 923-5600 |
| 49555 | LIVEWIRE ELECTRICAL SYSTEMS INC | C | 708-535-6001 |
| 49555 | LIVEWIRE ELECTRICAL SYSTEMS INC | A | 708-535-6001 |
| 49260 | LOHBAUER ELECTRIC | A | (847) 741-6241 |
| 49530 | LOW LINE TECHNOLOGIES, INC. | C | 815-678-0500 |
| 49550 | LOW VOLTAGE SOLUTIONS, INC. | C | 630 434-9600 |
| 49600 | LOYOLA ELECTRICAL CONSTRUCTION COMPANY, INC. | A | 773 769-5512 |
| X10210 | LOYOLA UNIVERSITY MEDICAL CENTER | MAINTENANCE/HOSPITAL | 708 216-9022 |
| 49800 | LUMEN ELECTRIC INC. | A | (847) 540-6300 |
| 49800 | LUMEN ELECTRIC INC. | R | (847) 540-6300 |
| 50100 | LYONS ELECTRIC | A | (708) 588-6800 |
| 12200 | M & R ELECTRONIC SYSTEMS, INC. | C | 847 398-6240 |
| 51000 | M – M ELECTRIC CO. | C | 847 520-9040 |
| S10130 | M-K SIGNS, INC. | SIGN | 773 545-4444 |
| 50600 | M. G. ELECTRIC SERVICE COMPANY | A | 847 439-7500 |
| 50860 | M. J. ELECTRIC, LLC | A | 906 774-8000 |
| 50860 | M. J. ELECTRIC, LLC | A | |
| 53166 | MACFARLANE ELECTRIC LLC | A | 708-424-7392 |
| 51700 | MALKO ELECTRIC COMPANY | A | 847 967-9500 |
| 51700 | MALKO ELECTRIC COMPANY | C | 847 967-9500 |
| 51725 | MALLARD ELECTRIC COMPANY, INC. | A | 847-487-7030 |
| 39450 | MANNING ELECTRICAL SYSTEMS, INC. | A | 815 478-7032 |
| 52000 | MANOR ELECTRIC COMPANY, INC. | A | 773- 927-5555 |
| 52100 | MARCHIONE ELECTRIC, INC. | A | 708 388-6352 |
| M52100 | MARCHIONE ELECTRIC, INC. | MAINT | 708-388-6352 |
| 52700 | MARON ELECTRIC COMPANY | A | 847-626-6500 |
| 52700 | MARON ELECTRIC COMPANY | C | 847-626-6500 |
| 52700 | MARON ELECTRIC COMPANY | R | 847-626-6500 |
| 52860 | MARTELL ELECTRIC, LLC | A | 574-245-4640 |
| 52900 | MARTIN ELECTRIC CO. | A | 630 766-3255 |
| 53040 | MASCAL ELECTRIC, INC. | A | 815 758-8164 |
| 53040 | MASCAL ELECTRIC, INC. | C | 815 758-8164 |
| 53030 | MASS.ELECTRIC CONSTRUCTION CO. | A | 773-458-1250 |
| X10220 | MATERIAL SERVICE CORPORATION | GENERAL | 312 372-3600 |
| 53265 | MAYO ELECTRIC, INC. | A | 773-467-1721 |
| 53265 | MAYO ELECTRIC, INC. | C | 773-467-1721 |
| 53265 | MAYO ELECTRIC, INC. | R | 773-467-1721 |
| R00700 | MAYWOOD PARK/ASSOCIATES RACING ASSOC. | RACE | 708 343-4800 |
| M10275 | MB REAL ESTATE SERVICES LLC | MAINT | 312 558-3828 |
| 50140 | MCARTHUR ELECTRIC, INC. | A | 708-444-4230 |
| 50205 | MCGOVERN ELECTRIC, INC. | A | 312 670-9897 |
| 50210 | MCGUIRE ELECTRIC CORPORATION | A | 847-438-1178 |
| 50555 | MCMAHON ELECTRIC INC. | A | 847-714-7956 |
| 50300 | MCNEILLY ELECTRIC, INC. | A | 708 636-9641 |
| 50400 | MCWILLIAMS ELECTRIC CO., INC. | A | 847 301-2600 |
| 50400 | MCWILLIAMS ELECTRIC CO., INC. | C | 847 301-2600 |
| 50770 | MDR ELECTRIC, INC. | A | 630-257-6700 |
| 50770 | MDR ELECTRIC, INC. | C | 630-257-6700 |
| 53300 | MEADE ELECTRIC CO., INC. | A | 708 588-2500 |
| 53300 | MEADE ELECTRIC CO., INC. | C | 708 588-2500 |
| CHK10575 | MEADOR INDUSTRIES, INC. | MANUFACTURING | 708 671-5042 |
| 53400 | MEANY INC. | A | 708 957-0400 |
| 53400 | MEANY INC. | C | 708 957-0400 |
| 53400 | MEANY INC. | A | |
| 53400 | MEANY INC. | C | |
| 22200 | MECHANICAL SYSTEMS, INC. D/B/A CONTECH-MSI CO. | FIRE | 847 342-9932 |
| 22200 | MECHANICAL SYSTEMS, INC. D/B/A CONTECH-MSI CO. | A | 847 342-9932 |
| 22200 | MECHANICAL SYSTEMS, INC. D/B/A CONTECH-MSI CO. | C | 847 342-9932 |
| 53500 | MECO ELECTRIC CO., INC. | A | 773 463-7800 |
| 53610 | MEDLIN COMMUNICATIONS | C | 630 734-7300 |
| 53750 | MEERSMAN ELECTRIC LTD. | A | 773-631-2158 |
| M10285 | MERCHANDISE MART PROPERTIES, INC. | MAINT | 312 527-4141 |
| 53860 | MERCURY ELECTRICAL SERVICES, INC. | A | 708 597-6945 |
| 53885 | MERIT ELECTRIC, LLC | A | 773-406-6001 |
| 54110 | METRA | MAINT/RAILROAD | 312-322-6900 |
| 54205 | METRO ELECTRIC CONSTRUCTION COMPANY, INC. | A | 612-588-6658 |
| 54201 | METRO PROTECTION SERV., INC. | C | 630-689-3930 |
| SB0007 | METROPOLITAN CHICAGOLAND SWITCHBOARDS | SWITCH | 708 449-2270 |
| 54350 | METROPOLITAN PIER & EXPOSITION (HOUSE) | A | (312) 791-7000 |
| 54305 | METROPOLITAN PIER & EXPOSITION AUTHORITY (A.V.D) | GENERAL | 312-791-6055 |
| 54300 | METROPOLITAN PIER & EXPOSITION AUTHORITY (SHOW) | A | 312 791-7000 |
| 54300 | METROPOLITAN PIER & EXPOSITION AUTHORITY (SHOW) | C | 312 791-7000 |
| 54300 | METROPOLITAN PIER & EXPOSITION AUTHORITY (SHOW) | A | 312-791-6331 |
| 54300 | METROPOLITAN PIER & EXPOSITION AUTHORITY (SHOW) | C | 312-791-6331 |
| MUN080 | METROPOLITAN WATER RECLAMATION DISTRICT OF GREATER | MUNICIPAL | 312 751-5600 |
| 54400 | MID AMERICA ELECTRIC CO., INC. | A | 847 895-5544 |
| 16220 | MIDCO, LTD. | C | 630 887-1800 |
| 55250 | MIDLAND DATA-INSTALLATION CO., INC. | A | (708) 597-0111 |
| 55250 | MIDLAND DATA-INSTALLATION CO., INC. | C | (708) 597-0111 |
| M10300 | MIDWEST INTERSTATE ELECTRICAL CONSTRUCTION | MAINT | 773 342-2600 |
| 55400 | MIDWEST INTERSTATE ELECTRICAL CONSTRUCTION CO. | A | 773 342-2600 |
| 55400 | MIDWEST INTERSTATE ELECTRICAL CONSTRUCTION CO. | C | 773 342-2600 |
| 55525 | MIDWEST MECHANICAL GROUP, INC. | A | 630-850-2300 |
| S10115 | MIDWEST SIGN & LIGHTING, INC. | SIGN | 708-365-5555 |
| 55550 | MIDWESTERN ELECTRIC CO., INC. | A | 708 333-9841 |
| 55560 | MIDWESTERN ELECTRIC, INC. | A | 219-397-4444 |
| 55610 | MILLER ELECTRIC COMPANY | A | 904 388-8000 |
| 55700 | MILLER ELECTRIC COMPANY OF INDIANA INC. | A | 219 738-1770 |
| CHK10525 | MILLS CUSTOM AUDIO AND VIDEO | AUDIO/VIDEO | 847 419-9990 |
| 5110 | MITCHELL SECURITY SYSTEMS, INC. | C | 847 537-3456 |
| 41200 | MIV, INC. | A | 815 725-7993 |
| 41200 | MIV, INC. | C | 815 725-7993 |
| 55900 | MOHAWK ELECTRIC CONSTRUCTION COMPANY | A | 773- 777-4200 |
| 56000 | MONARCH ELECTRIC CONSTR. CO. | A | 847 673-6363 |
| 56010 | MORAN, INC., FIRE PROTECTION, F. E. | A | 217 356-0700 |
| 56010 | MORAN, INC., FIRE PROTECTION, F. E. | C | 217 356-0700 |
| CHK10500 | MORRIS KURTZON, INCORPORATED | MANUFACTURING | 312 277-2121 |
| 56030 | MORSE ELECTRIC INCORPORATED | A | 815-599-5000 |
| 56040 | MOSOR ELECTRICAL TELECOM TECHNOLOGIES, LTD. | A | 312 213-4727 |
| 77030 | MTS TITAN ELECTRIC LLC | A | 630-530-4422 |
| 77030 | MTS TITAN ELECTRIC LLC | C | 630-530-4422 |
| 77030 | MTS TITAN ELECTRIC LLC | R | 630-530-4422 |
| 56150 | MUELLERMIST IRRIGATION CO. | A | 708 344-8680 |
| CHK10600 | MULTI ELECTRIC MANUFACTURING | MANUFACTURING | 312 722-1900 |
| 56260 | MURPHY ELECTRICAL CONSTRUCTION COMPANY | A | 708 489-2822 |
| 56260 | MURPHY ELECTRICAL CONSTRUCTION COMPANY | C | 708 489-2822 |
| CHK10630 | MUSEUM OF SCIENCE AND INDUSTRY | MAINTENANCE | 773 947-6787 |
| 16300 | MUZAK LLC | C | 630 782-6800 |
| 16325 | MZI ELECTRIC, INC. | LM | 312-492-8740 |
| 16325 | MZI ELECTRIC, INC. | A | 312-492-8740 |
| 16325 | MZI ELECTRIC, INC. | C | 312-492-8740 |
| 56650 | NAT TECH , INC. D/B/A: NATIONAL TECH. NTI | C | 630-851-7751 |
| 56700 | NATIONAL ELECTRIC OF ILLINOIS, INC. | A | 630 458-4700 |
| 56700 | NATIONAL ELECTRIC OF ILLINOIS, INC. | C | 630 458-4700 |
| 56810 | NAVY PIER, INC. | A | 312-595-5032 |
| 56950 | NERI TECHNICAL SERVICES, INC. | A | 773 205-2255 |
| 57100 | NESKO ELECTRIC CO. | A | 708 681-6116 |
| 57100 | NESKO ELECTRIC CO. | C | 708 681-6116 |
| 57100 | NESKO ELECTRIC CO. | A | 708-681-6116 |
| 57100 | NESKO ELECTRIC CO. | C | 708-681-6116 |
| 57380 | NEW AGE TECHNOLOGIES & ASSOCIATES INC. | C | 630 514-4319 |
| 13400 | NEW BESCOR, INC. | A | 847 439-3350 |
| 13400 | NEW BESCOR, INC. | C | 847 439-3350 |
| 13400 | NEW BESCOR, INC. | R | 847 439-3350 |
| 13425 | NEW FRONTIER ELECTRICAL CONSTRUCTION INC. | C | 815-260-9473 |
| 13425 | NEW FRONTIER ELECTRICAL CONSTRUCTION INC. | A | 815-260-9473 |
| 13450 | NEW HORIZONS COMMUNICATIONS, INC. | C | 630 510-1660 |
| 57500 | NEW LENOX ELECTRIC, INC. | A | 815 485-5100 |
| 57900 | NEW UNITED, INC. | A | 630 289-1187 |
| 57740 | NEWCASTLE ELECTRIC, INC. | A | (630) 910-3954 |
| 57725 | NEWFIELD ELECTRIC | A | 630 855-0880 |
| 57810 | NEXTIRAONE, LLC | C | 713-307-4248 |
| 55235 | NICHOLSON ELECTRIC, INC. | A | 815-968-3081 |
| 13050 | NISCAYAH, INC. | C | 847-759-1623 |
| 58240 | NOLAN ELECTRIC, INC. | A | 708 301-4555 |
| 58300 | NORMAN ELECTRIC, INC. | A | 708-757-6006 |
| 41755 | NORTECH TELECOMMUNICATIONS, INC. D/B/A BLACK BOX S | C | 847 439-5000 |
| 58450 | NORTH AMERICAN TECHNOLOGIES CO., INC. | A | 708 839-8101 |
| 58810 | NORTHSTAR ELECTRIC, INC. | A | 847-466-2673 |
| 56142 | NORTHWEST COMMUNICATIONS & ELECTRIC, INC. D/B/A NO | C | 219-756-4233 |
| 59160 | NORTHWEST TECHNICAL | A | 815 459-6180 |
| S10135 | NSI SIGNS, INC. | SIGN | 630 350-2333 |
| CHK10775 | NT INDUSTRIES, INC. | MANUFACTURING | 847-451-6500 |
| 59330 | NU-TECH ELECTRIC, INCORPORATED | A | 708-768-1962 |
| 59281 | NU-WAVE ELECTRIC, INC. | A | 630-466-4044 |
| 57000 | NUCORE ELECTRIC, INC. | MAINT | 630-517-0073 |
| 57000 | NUCORE ELECTRIC, INC. | A | 630-517-0073 |
| 59280 | NULINE TECHNOLOGIES , INC. | R | 847 520-9300 |
| 59280 | NULINE TECHNOLOGIES , INC. | A | 847 520-9300 |
| 59280 | NULINE TECHNOLOGIES , INC. | R | |
| 59280 | NULINE TECHNOLOGIES , INC. | A | |
| 59290 | NYC COMMUNICATIONS LLC | C | 708-479-7252 |
| 59360 | O’CARROLL ELECTRICAL CONTR., INC. | A | 847-836-7321 |
| 59625 | OAKLEAF ELECTRIC CONSTRUCTION, INC. | A | 815-382-1527 |
| 59630 | OAKRIDGE ELECTRIC, L.L.C. | A | 708-645-2596 |
| CHK10675 | OATS, INC. | GENERAL | 312 601-8186 |
| 68360 | ODYSSEY GROUP, INC. | C | 212-803-5800 |
| 60500 | OKEH ELECTRIC COMPANY | A | 847 577-7744 |
| S10140 | OLYMPIC SIGNS, INC. | SIGN | 630 424-6100 |
| 60800 | OMEGA ELECTRIC CO., INC. | A | 847 228-5559 |
| 60800 | OMEGA ELECTRIC CO., INC. | C | 847 228-5559 |
| 60800 | OMEGA ELECTRIC CO., INC. | A | |
| 60800 | OMEGA ELECTRIC CO., INC. | C | |
| 12760 | OPC COMMUNICATIONS, INC. | A | 708-671-0218 |
| 12760 | OPC COMMUNICATIONS, INC. | C | 708-671-0218 |
| 61299 | OR ELECTRICAL SERVICES LLC | A | 630-339-2680 |
| 61300 | ORLAND ELECTRIC CO., INC. | A | 708 532-8606 |
| CHK10855 | ORLAND FIRE PROTECTION DISTRICT | GENERAL | 708 349-0074 |
| CHK10856 | ORLAND FIRE PROTECTION DISTRICT (TELECOMM.) | GENERAL | 708-349-0074 |
| 61959 | P & H ELECTRIC CORP | A | 815-332-2268 |
| 61925 | P V ELECTRIC INC. | A | 847-561-2186 |
| 62100 | P. K. ELECTRIC ENTERPRISES, LIMITED | A | 847 797-1112 |
| 61810 | P.E.I., INC. | A | 708 633-0459 |
| 76410 | PACE SYSTEMS, INC. | A | 630-395-2255 |
| 76410 | PACE SYSTEMS, INC. | C | 630-395-2255 |
| 62170 | PADD ELECTRICAL, INC. | A | 708 756-2132 |
| 62180 | PAGODA ELECTRIC, INC. | A | 773-229-8800 |
| 62180 | PAGODA ELECTRIC, INC. | C | 773-229-8800 |
| 62180 | PAGODA ELECTRIC, INC. | R | 773-229-8800 |
| S10150 | PALDO SIGN & DISPLAY COMPANY | SIGN | 708 456-1711 |
| S10150 | PALDO SIGN & DISPLAY COMPANY | MAINT | 708 456-1711 |
| HOT014 | PALMER HOUSE HILTON CHICAGO | HOTEL | 312-621-7324 |
| 62200 | PALOS ELECTRIC COMPANY, INC. | A | 708 385-0063 |
| 62200 | PALOS ELECTRIC COMPANY, INC. | C | 708 385-0063 |
| 62500 | PARKVIEW ELECTRIC CO., INC. | A | 815-834-1994 |
| 62500 | PARKVIEW ELECTRIC CO., INC. | R | 815-834-1994 |
| 62650 | PATRICK ELECTRIC | A | 847 516-0004 |
| 62660 | PATRIOT ELECTRICAL SYSTEMS, INC. | C | 708-873-5325 |
| 44600 | PCS POWER & COMMUNICATIONS SOLUTIONS D/B/A KEL TEC | A | 847-358-8900 |
| 44600 | PCS POWER & COMMUNICATIONS SOLUTIONS D/B/A KEL TEC | C | 847-358-8900 |
| 62755 | PEAK ELECTRIC, INC. | A | 708-233-1600 |
| 62760 | PEARSON ELECTRIC, INC. | A | 815-482-8390 |
| 62760 | PEARSON ELECTRIC, INC. | C | 815-482-8390 |
| 16900 | PENTEGRA SYSTEMS, LLC | C | 630 941-6000 |
| X10330 | PEPSIAMERICAS, INC. | GENERAL | 847 394-7680 |
| 63060 | PERILLO ELECTRICAL CONTRACTORS, INC. | A | 630-466-5564 |
| SB0700 | PETERSON ELECTRIC PANEL MFG. CO., INC. | SWITCH | 708 449-2270 |
| 63200 | PHILLIPS ELECTRIC, INC. | A | 708 877-1100 |
| 63264 | PHOENIX BUSINESS SOLUTIONS LLC | A | 708 388-1330 |
| 63264 | PHOENIX BUSINESS SOLUTIONS LLC | C | 708 388-1330 |
| 63265 | PHOENIX ELECTRICAL CONTRS. | A | 773 275-4400 |
| 63265 | PHOENIX ELECTRICAL CONTRS. | R | 773 275-4400 |
| 63260 | PHOENIX SYSTEMS & SERVICE | A | 630 860-9501 |
| 63260 | PHOENIX SYSTEMS & SERVICE | C | 630 860-9501 |
| 63285 | PHOTON ELECTRICAL SYSTEMS, INC. | A | 773-775-8210 |
| 63285 | PHOTON ELECTRICAL SYSTEMS, INC. | R | 773-775-8210 |
| 63257 | PIEPER ELECTRIC, INC. D/B/A LIGHTING PROTECTION | A | 414-462-7700 |
| 63460 | PINNACLE SERVICES, INC. | A | 630 773-8660 |
| 63460 | PINNACLE SERVICES, INC. | C | 630 773-8660 |
| 10040 | PLANNED LIGHTING, INC. | A | 773 296-0999 |
| 10040 | PLANNED LIGHTING, INC. | A | (773) 296-0999 |
| L10040 | PLANNED LIGHTING, INC. | LM | 773 296-0999 |
| 10062 | PLATINUM COMMUNICATIONS, L.L.C. | C | 630-777-7501 |
| 63675 | POLAM ELECTRIC, INC. | A | 847 904-7331 |
| 63680 | PORTABLE COMMUNICATION SYS., INC. D/B/A PCS CABLE | C | 847 818-8100 |
| 63750 | POWER & LIGHTING SYSTEMS, INC. | A | 847 233-0900 |
| 63750 | POWER & LIGHTING SYSTEMS, INC. | C | 847 233-0900 |
| 63750 | POWER & LIGHTING SYSTEMS, INC. | R | 847 233-0900 |
| SB0400 | POWER DISTRIBUTION EQUIPMENT CO., INC. | SWITCH | 847 455-2500 |
| 63822 | POWERLINK SERVICES, INC. | A | 847-987-8448 |
| 62345 | PRECISION CONTROL SYSTEMS OF CHICAGO, INC. | A | (630) 521-0234 |
| 62340 | PRECISION CONTROL SYSTEMS, INC, | A | 219 838-1177 |
| 62250 | PRECISION ELECTRICAL CONTRACTORS, INC. | A | 412-481-9750 |
| 63900 | PREFERRED ELECTRICAL CONSTRUCTION CORP. OF ILLINOI | A | 630 893-3444 |
| 63900 | PREFERRED ELECTRICAL CONSTRUCTION CORP. OF ILLINOI | C | 630 893-3444 |
| 64010 | PREMIER ELECTRIC CO., INC. | A | 773-775-7555 |
| 64010 | PREMIER ELECTRIC CO., INC. | C | 773-775-7555 |
| 64010 | PREMIER ELECTRIC CO., INC. | R | 773-775-7555 |
| 64015 | PREMIER POWER PROFESSIONAL, INC. | A | 262-632-2800 |
| 64050 | PREMIUM ELECTRIC SERVICES, INC. | A | 847-524-1507 |
| 64050 | PREMIUM ELECTRIC SERVICES, INC. | C | 847-524-1507 |
| 64320 | PRIDE COMMUNICATIONS | C | 708-277-8160 |
| 64360 | PRIME COMMUNICATIONS 1 INC. | C | 312-364-0303 |
| 64100 | PRIME ELECTRIC CO., INC. | A | 312 433-9111 |
| 64100 | PRIME ELECTRIC CO., INC. | C | 312 433-9111 |
| M10340 | PRIME ELECTRIC CO., INC. | MAINT | 312 433-9111 |
| CC0200 | PRIME TIME SPORTS LLC | CABLE | 847-637-3500 |
| 64170 | PRO-ARC ELECTRICAL CONSTRUCTION, CO. | A | 847 427-1111 |
| 64700 | PROGRESS ELECTRIC CO. | A | 773 767-5533 |
| 64750 | PROSPECT ELECTRIC COMPANY | A | 847 506-8900 |
| 13120 | PROTEX INSTALLATIONS, INC. | C | 847-836-0151 |
| 13150 | PROTON ELECTRIC CORPORATION | A | 708-906-3846 |
| 13157 | PROVIDENCE ELECTRIC, INC. | A | 708 895-3935 |
| 64760 | PRUSAK ELECTRIC CO., INC. | A | 219-864-1200 |
| 65000 | PUBLIC ELECTRICAL CONSTRUCTION CO., INC. | A | 847 520-5700 |
| 65000 | PUBLIC ELECTRICAL CONSTRUCTION CO., INC. | C | 847 520-5700 |
| 65205 | Q.I.S. INCORPORATED | C | 773 445-0120 |
| 15213 | QUALITY ELECTRIC | A | (815) 235-4372 |
| 13145 | QUANTUM CROSSINGS, INC. | A | 312-467-0065 |
| 13145 | QUANTUM CROSSINGS, INC. | C | 312-467-0065 |
| 65300 | QUICK ELECTRIC CO. | A | 708 599-1685 |
| 66010 | R S HUNTER ELECTRIC, INC. | A | 630-546-8949 |
| 13160 | R. F. ELECTRONICS SYSTEMS, INC. | C | 708 449-2665 |
| 67151 | R. EAGLE ELECTRIC, INC. | A | 630-787-1080 |
| 65500 | R.A.M. ELECTRIC, LLC | A | 773-299-2183 |
| 65605 | R.M.R. ELECTRIC, INC. | A | 630-774-4486 |
| 66750 | RABRIDGE ELECTRIC COMPANY | A | (708) 614-0324 |
| 66575 | RAD ELECTRIC LLC | A | 708-933-0734 |
| 66900 | RANDEL ELECTRIC, INC. | A | 773 342-0383 |
| 67000 | RANGER ELECTRIC, INC. | A | 708-478-8508 |
| 5260 | RED HAWK SECURITY SYSTEMS, INC. | C | 708 239-1670 |
| 67200 | REGAN ELECTRIC COMPANY INC. | A | 708 386-0689 |
| 67200 | REGAN ELECTRIC COMPANY INC. | C | 708 386-0689 |
| 67553 | RENAISSANCE COMMUNICATION SYSTEMS, INC. | A | 847 671-1340 |
| 67553 | RENAISSANCE COMMUNICATION SYSTEMS, INC. | C | 847 671-1340 |
| 67530 | REPAIR SERVICE ELECTRIC, INC. | A | 847 593-9600 |
| 67563 | RESPECT ELECTRICAL COMPANY, INC. | A | 708-949-8647 |
| 67563 | RESPECT ELECTRICAL COMPANY, INC. | R | 708-949-8647 |
| 67565 | RESPONSE ELECTRIC, INC. | A | 708-479-0979 |
| 67600 | REX ELECTRIC & TECHNOLOGIES, LLC | A | 630 932-8600 |
| 67600 | REX ELECTRIC & TECHNOLOGIES, LLC | C | 630 932-8600 |
| 67600 | REX ELECTRIC & TECHNOLOGIES, LLC | R | 630 932-8600 |
| L67600 | REX ELECTRICAL & TECHNOLOGIES, LLC. | LM | 630-932-8600 |
| M67600 | REX ELECTRICAL TECHNOLOGIES, LLC. | MAINT | 630 932-8600 |
| 67900 | RICHMOND ELECTRIC COMPANY | A | 708 749-0044 |
| 68030 | RIDGEVIEW ELECTRIC, INC. | A | 815-385-8282 |
| 68200 | RILEY ELECTRIC CORP., C. A. | A | 847 437-3851 |
| 68200 | RILEY ELECTRIC CORP., C. A. | R | 847 437-3851 |
| 68329 | RISE ELECTRIC LLC | A | 708-516-3920 |
| 65700 | RJC QUALITY ELECTRIC, INC. | A | 630-208-9820 |
| 65625 | RJL GROUP, INC. | A | 708-857-1991 |
| 65751 | RLT INC. | A | 262-679-9588 |
| 43301 | RO PRO ELECTRIC CO. INC | A | 708-488-1130 |
| 43300 | RON JONES ELECTRIC | A | 847 695-7500 |
| 43300 | RON JONES ELECTRIC | C | 847 695-7500 |
| M10360 | ROOSEVELT UNIVERSITY | MAINT | 312 341-3500 |
| 68600 | ROSSET ELECTRIC COMPANY | A | 773 486-6210 |
| 68620 | ROTH ELECTRICAL, LLC | A | 810-600-9500 |
| 68700 | ROUGHNECK CONCRETE DRILLING & SAWING | A | 847 966-6666 |
| 68740 | ROYAL ELECTRIC & ALARM SERVICES, INC. | A | 708 583-2355 |
| 68740 | ROYAL ELECTRIC & ALARM SERVICES, INC. | C | 708 583-2355 |
| 66060 | RRS TECHNOLOGIES LLC | C | 773-779-8082 |
| 65827 | RUDER ELECTRIC, INC. | A | 815 932-8660 |
| 65827 | RUDER ELECTRIC, INC. | C | 815 932-8660 |
| 65827 | RUDER ELECTRIC, INC. | R | 815 932-8660 |
| 65823 | RYAN ELECTRICAL SERVICES, INC. | A | 708-403-1049 |
| M658823 | RYAN ELECTRICAL SERVICES, INC. | MAINT | 708-103-1049 |
| 68850 | S & D ELECTRICAL CONTRS., INC. | A | 630 250-7719 |
| 68850 | S & D ELECTRICAL CONTRS., INC. | C | 630 250-7719 |
| 68870 | S & G COMMUNICATIONS, INC. | C | 847 459-1220 |
| 68900 | S & J ELECTRIC CO. | A | 815 363-6833 |
| 68900 | S & J ELECTRIC CO. | R | 815 363-6833 |
| 69000 | S & M ELECTRIC, INC. | A | 708 780-8177 |
| M10370 | S & P ELECTRIC, INC. | MAINT | 630 916-8353 |
| 69320 | S & S SYTEMS OF ILLINOIS, INC. | C | 630-616-4990 |
| CHK10985 | S P PRODUCTS | MANUFACTURING | 708 593-8595 |
| 69600 | SARGENT ELECTRIC COMPANY | A | 412-394-7488 |
| 69785 | SCHNEIDER ELECTRIC BUILDINGS AMERICAS, INC. | MAINT | 708-271-4700 |
| 69785 | SCHNEIDER ELECTRIC BUILDINGS AMERICAS, INC. | A | 708-271-4700 |
| 69785 | SCHNEIDER ELECTRIC BUILDINGS AMERICAS, INC. | C | 708-271-4700 |
| 69762 | SECOND CITY ELECTRICAL CORP. | A | 312-907-6906 |
| 69765 | SECRETARY OF STATE OF ILLINOIS | MUNICIPAL | 312-814-2262 |
| 69910 | SECURITY ELECTRONICS CORPORATION | C | 219 365-1005 |
| 69930 | SECURITY UNLIMITED, INC. | C | 815-469-6616 |
| 69950 | SEICO, INC. | C | 309-347-3200 |
| 70150 | SELECT PRO TOOLS, INC. | A | 847-763-5288 |
| 70200 | SENATE ELECTRIC CONSTRUCTION COMPANY | A | 847-873-0634 |
| 70200 | SENATE ELECTRIC CONSTRUCTION COMPANY | R | 847-873-0634 |
| 70430 | SERVICE PLUS, INC. | A | 847-526-3200 |
| 70600 | SHAMROCK ELECTRIC CO. | A | 847 593-6070 |
| 70600 | SHAMROCK ELECTRIC CO. | R | 847 593-6070 |
| 70650 | SHARLEN ELECTRIC CO. | A | 773 721-0700 |
| 70650 | SHARLEN ELECTRIC CO. | C | 773 721-0700 |
| 70650 | SHARLEN ELECTRIC CO. | R | 773 721-0700 |
| 70862 | SHELDON INVESTMENT GROUP, INC. D/B/A SCAN-AM COMPA | C | 847-854-9500 |
| X10360 | SHERWIN-WILLIAMS CO. | GENERAL | 773 821-3011 |
| 71000 | SHILLELAGH ELECTRIC, INC. | A | 708-824-9993 |
| 71100 | SHORELINE ELECTRIC CO., INC. | A | 847 419-7755 |
| MOT300 | SIEVERT ELECTRIC SERVICE & SALES CO. | MOTOR | 708 771-1600 |
| 71400 | SIEVERT ELECTRIC SERVICE AND SALES CO. | A | 708 771-1600 |
| 71400 | SIEVERT ELECTRIC SERVICE AND SALES CO. | C | 708 771-1600 |
| 71350 | SIGNATURE ELECTRIC COMPANY | A | 847 359-1701 |
| 71350 | SIGNATURE ELECTRIC COMPANY | C | 847 359-1701 |
| 71500 | SIMON ELECTRICAL CONTRACTORS, INC. | A | 773 472-4666 |
| 71700 | SKITCH ELECTRIC CO. | A | 224-629-4100 |
| 71700 | SKITCH ELECTRIC CO. | C | 224-629-4100 |
| 72050 | SMC ELECTRICAL CORPORATION | A | 847-290-8500 |
| 13420 | SMG SECURITY SYSTEMS, INC. | C | 847-593-0999 |
| 13720 | SOUND OF MUSIC, LTD. | C | 847 729-1240 |
| 16550 | SOUND VISION, INC. | C | 847-742-6000 |
| 16540 | SOUND, INC. | C | 630 369-2900 |
| 6415 | SPAAN TECH, INC. DBA SPAAN TECHNOLOGY, INC. | A | (312) 277-8800 |
| 15120 | SPL INTEGRATED SOLUTIONS | C | 847 437-7712 |
| 13927 | SPUR ELECTRICAL, INC. | A | 773 254-9800 |
| 69125 | SRC ELECTRIC, LLC | A | 847-833-6363 |
| 72930 | ST. CHARLES UNION ELECTRIC COMPANY | A | (630) 584-5733 |
| 73122 | STANCY ELECTRIC, INC. | A | 847-493-9415 |
| X10370 | STANLEY WORKS, INCORPORATED THE | GENERAL | 847 925-9160 |
| X10370 | STANLEY WORKS, INCORPORATED THE | A | 847 925-9160 |
| 72940 | STAR SECURITY SYSTEMS, INC. | C | 847-907-4447 |
| MUN090 | STATE OF ILLINOIS (DEPT. OF CENTRAL MGMT. SERVICES | MUNICIPAL | 217 782-2559 |
| X10375 | STEINER ELECTRIC CO. | MOTOR | 847-228-0400 |
| 73240 | STELLMACH ELECTRIC, INC. | A | 630 529-6683 |
| 78500 | STI DEDICATED SERVICES, LLC | C | 630-787-8083 |
| 74300 | STONE, INC., E. | A | 630 833-8010 |
| 74300 | STONE, INC., E. | C | 630 833-8010 |
| 74300 | STONE, INC., E. | R | 630 833-8010 |
| 73560 | SUAREZ ELECTRIC CO. | LM | 773 202-9077 |
| 73560 | SUAREZ ELECTRIC CO. | A | 773 202-9077 |
| 73565 | SUB ZERO CONTROLS, INC. | A | 815-478-0380 |
| 73570 | SUBURBAN COMMUNICATIONS, INC. | C | 847 705-8851 |
| 73590 | SULLIVAN ELECTRICAL CONTRACTORS, INC. | A | 708-687-4810 |
| 73800 | SUPER ELECTRIC CONSTRUCTION COMPANY | A | 773 489-4400 |
| 73800 | SUPER ELECTRIC CONSTRUCTION COMPANY | C | 773 489-4400 |
| M73800 | SUPER ELECTRIC CONSTRUCTION COMPANY | MAINT | (773) 489-4400 |
| 73840 | SUPERIOR ONE ELECTRIC, INC. | A | 630-655-3300 |
| 73840 | SUPERIOR ONE ELECTRIC, INC. | C | 630-655-3300 |
| 73840 | SUPERIOR ONE ELECTRIC, INC. | R | 630-655-3300 |
| 73900 | SURE-LIGHT SERVICE CO. | A | 708 343-7446 |
| S10170 | SURE-LIGHT SERVICE CO. | SIGN | 847-214-9595 |
| 74500 | SWEENEY ELECTRIC CO., INC., D.J. | A | 630 515-9700 |
| 74530 | SWENEY ELECTRIC COMPANY INC. | A | 219 769-6007 |
| CHK0900 | SWITCHBOARD APPARATUS, INC. | SWITCH | 708 450-0990 |
| L10050 | SYLVANIA LIGHTING SERVICES CORP. | LM | 630 752-0075 |
| S10180 | SYLVANIA LIGHTING SERVICES CORP. | SIGN | 630 752-0075 |
| 16630 | SYLVANIA LIGHTING SERVICES CORPORATION | A | 630 752-0075 |
| 74100 | SYSTEM ELECTRIC, INC. | A | 312 842-8077 |
| 74100 | SYSTEM ELECTRIC, INC. | R | 312 842-8077 |
| CHK10150 | SYSTEM SENSOR | MANUFACTURING | 708 377-6580 |
| 74170 | SYSTEMS CONTROL & AUTOMATION, INC. | A | 708 873-1315 |
| 75060 | T & H ELECTRIC LTD | R | 847 526-0092 |
| 75060 | T & H ELECTRIC LTD | A | 847 526-0092 |
| 25480 | TAL SYSTEMS LTD. | A | 630-871-9058 |
| 74550 | TARGET ELECTRIC, INC. | A | 708-596-6300 |
| X10380 | TAYLOR ELECTRIC | GENERAL | 312 638-2414 |
| 75600 | TAYLOR ELECTRIC COMPANY | A | 773-346-5765 |
| 75600 | TAYLOR ELECTRIC COMPANY | C | 773-346-5765 |
| 75600 | TAYLOR ELECTRIC COMPANY | R | 773-346-5765 |
| 75070 | TEC ELECTRIC, INC. | A | 847-296-5400 |
| 75725 | TECH ELECTRONICS OF ILLINOIS, LLC | C | 630-546-5340 |
| X10275 | TEE JAY SERVICE COMPANY | GENERAL | 630-406-1406 |
| 14250 | TELEPHONE OPTIONS, INC. | C | 773 233-7897 |
| 4820 | TELEPLUS, INC. | A | 630- 543-3066 |
| 4820 | TELEPLUS, INC. | C | 630- 543-3066 |
| 76200 | TERRANCE ELECTRIC & TECHNOLOGY, INC. | A | 630 758-0011 |
| 76200 | TERRANCE ELECTRIC & TECHNOLOGY, INC. | C | 630 758-0011 |
| 76200 | TERRANCE ELECTRIC & TECHNOLOGY, INC. | R | 630 758-0011 |
| 74130 | THE BEST GUARANTEED ELECT. CONTRACTORS, INC. | A | 708 236-2990 |
| M74130 | THE BEST GUARANTEED ELECTRICAL CONTRACTORS, INC. | MAINT | 708 236-2990 |
| HOT004 | THE CONGRESS PLAZA HOTEL & CONVENTION CENTER | HOTEL | 312 427-3800 |
| HOT006 | THE DRAKE HOTEL, INC. | HOTEL | 312-932-4690 |
| 74135 | THE RIGHT APPROACH, INC. | A | 630-606-0814 |
| HOT015 | THE RITZ-CARLTON OF CHICAGO, INC. | HOTEL | 312-573-5033 |
| 76460 | THEO ELECTRIC, INC. | A | 630-790-9232 |
| 14365 | THERM FLO, INC. | A | 847 541-0029 |
| X10280 | THERMAL CARE INC. | GENERAL | 847-966-2260 |
| 76750 | THORNE ELECTRIC, INC. | A | (630) 668-4853 |
| 76300 | THURSTON ELECTRICAL SPECIALTY COMPANY | A | 708 479-9981 |
| 76300 | THURSTON ELECTRICAL SPECIALTY COMPANY | C | 708 479-9981 |
| 14430 | TIMCO/CUSACK COMMUNICATIONS, INC. | C | 708-479-1222 |
| 7420 | TIME BUSINESS SYSTEMS, INC. | C | 630 529-5220 |
| 77020 | TIMM ELECTRIC | A | 815 723-4501 |
| 77060 | TITLE ELECTRIC COMPANY | A | 847 753-9605 |
| 75152 | TJH COMMUNICATION SERVICES, INC. | C | 773-631-4716 |
| 75143 | TK ELECTRIC, LLC | A | 219-696-5742 |
| 75145 | TKO INSTALLATIONS, INC. | C | 847-526-1169 |
| 75170 | TOD ELECTRIC COMPANY | A | 847-468-0519 |
| 77220 | TOTAL ELECTRIC, INC. | A | 708-226-9016 |
| 77240 | TOTAL ELECTRICAL SERVICES, INC. | A | 847-847-9959 |
| 77440 | TPEC ELECTRICAL CONTRACTOR, INC. | A | 847 956-7990 |
| 77463 | TRANS TECH ELECTRIC, L.P. | A | 219 272-9673 |
| 7620 | TRI TEL TECHNICAL SERVICES | C | 847 870-0010 |
| 77470 | TRI-CITY ELECTRIC COMPANY OF IOWA | A | 563-322-7181 |
| 77470 | TRI-CITY ELECTRIC COMPANY OF IOWA | C | 563-322-7181 |
| 77480 | TRI-CITY ELECTRIC SERVICE, INC. | A | 708 349-9505 |
| 77480 | TRI-CITY ELECTRIC SERVICE, INC. | C | 708 349-9505 |
| 77490 | TRI-ELECTRONICS, INC. | C | 219 931-6850 |
| 77994 | TRI-M ELECTRIC, INC. | A | 708-429-1258 |
| 78160 | TRI-TECH ELECTRIC, INC. | A | 630-378-0600 |
| 77500 | TRIAD ELECTRICAL CONTRACTORS, INC. | A | 847-388-3000 |
| 78400 | TURO ELECTRICAL CONSTRUCTION, INC. | A | 847 395-5111 |
| 14640 | TWIN ELECTRIC OF CHICAGO, LTD. | LM | 312 433-6452 |
| 14640 | TWIN ELECTRIC OF CHICAGO, LTD. | A | 312 433-6452 |
| 14640 | TWIN ELECTRIC OF CHICAGO, LTD. | R | 312 433-6452 |
| X10400 | U. S. TOBACCO MFG. PARTNERSHIP | GENERAL | 847 957-8200 |
| M10320 | UGL UNICCO | MAINT | (973) 771-2541 |
| 78900 | UMBDENSTOCK ELECTRIC, INC. | A | 847 566-0619 |
| 49360 | UNION LIGHTNING PROTECTION INSTALLERS, INC. | A | 708 386-8050 |
| X10205 | UNION LIGHTNING PROTECTION INSTALLERS, INC. | GENERAL | 708 386-8050 |
| X79215 | UNITED CENTER JOINT VENTURE | GENERAL | 312-455-4500 |
| 7850 | UNITED NETWORK SYSTEMS, INC. | C | 630 279-2400 |
| 79000 | UNITED POWER AND LIGHTING CONTRACTORS, INC | A | 708-417-7395 |
| 79000 | UNITED POWER AND LIGHTING CONTRACTORS, INC | C | 708-417-7395 |
| 14665 | UNITED VISUAL, INC. | C | 630 467-1500 |
| 79270 | UNIVERSAL POWER AND CONTROL, INC. | A | 630 510-9941 |
| X10410 | UNIVERSITY OF CHICAGO | GENERAL | 773-702-2017 |
| X10420 | UNIVERSITY OF CHICAGO-HOSPITAL | GENERAL | 773-753-8588 |
| X10430 | UNIVERSITY OF CHICAGO-TELECOMMUNICATIONS | GENERAL | 773 702-6010 |
| CHK10800 | UNIVERSITY OF ILLINOIS BOARD OF TRUSTEES (AUDIO VI | MUNICIPAL/PUBLIC | 312 996-6642 |
| X10825 | UNIVERSITY OF ILLINOIS BOARD OF TRUSTEES (ELECT./T | GENERAL | 312 996-7570 |
| 55240 | US DATACOMM, INC. | C | 630 969-0808 |
| 79405 | USA SECURITY SYSTEMS, INC. | C | 888-311-4440 |
| 79451 | VAN ERT ELECTRIC COMPANY, INC. | A | 715-845-4308 |
| 14720 | VIDEO AND SOUND SERVICE, INC. | C | 708 562-6316 |
| 14800 | VIDEOTEC CORPORATION II | C | 708 862-0617 |
| CHK10850 | VILLAGE OF ORLAND PARK | GENERAL | 708 403-6155 |
| 80150 | VINCENT ELECTRIC, INC. | A | 630-539-8912 |
| 80425 | VOLT ELECTRIC, INC. | A | 630-878-1766 |
| 80440 | VOLT-TEK ELECTRIC INC. | A | 847-735-9420 |
| 80460 | VOX ELECTRIC COMPANY, INC. | A | 630-550-5170 |
| X10470 | VULCAN MATERIALS | GENERAL | 630 261-8600 |
| HOT005 | W CHICAGO LAKESHORE | HOTEL | 312-255-4441 |
| 80530 | W. J. ELECTRIC CO., INC. | A | 708 599-3343 |
| 80700 | WALDRON ELECTRIC CONSTRUCTION | A | 847 724-8599 |
| 10480 | WALGREEN CO. | A | (847) 914-5496 |
| 80732 | WALKO ENTERPRISES, INC. D/B/A MIDWEST AUTO. DOOR | GENERAL | 866-702-3667 |
| CHK10950 | WBEZ ALLIANCE, INC. | BROADCAST | 312 832-3312 |
| 80750 | WEBSTER ELECTRIC COMPANY | A | 847 827-4444 |
| 81000 | WEST ELSDON ELECTRIC CO. | A | 815-761-3388 |
| 81275 | WEST SIDE REALTY CORPORATION | MAINT | 312-563-1155 |
| 80800 | WESTBROOK ELECTRIC CONSTRUCTION LLC | A | 708-485-0001 |
| 81223 | WESTFIELD ELECTRIC, INC. | C | 419-862-0078 |
| 81440 | WHITE WAY SIGN & MAINTENANCE | A | (847) 391-0200 |
| S10200 | WHITE WAY SIGN & MAINTENANCE CO. | SIGN | 847-391-0200 |
| 81600 | WIDE HORIZON ELECTRIC SERVICE, INC. | A | 847 426-2170 |
| 81700 | WIGDAHL ELECTRIC CO., INC. | GENERAL | 847 439-8200 |
| 81700 | WIGDAHL ELECTRIC CO., INC. | A | 847 439-8200 |
| 81700 | WIGDAHL ELECTRIC CO., INC. | C | 847 439-8200 |
| 81765 | WILLIAM CHARLES CONSTRUCTION COMPANY LLC | A | 815-877-0550 |
| 21860 | WILLIAM T. CONNELLY, INC. D/B/A CONNELLY ELECTRIC | A | 630 543-9059 |
| 21860 | WILLIAM T. CONNELLY, INC. D/B/A CONNELLY ELECTRIC | C | 630 543-9059 |
| CHK10900 | WILLIAMS ELECTRONIC GAMES, INC. | MANUFACTURING | 847 785-3000 |
| 82000 | WINDY CITY ELECTRIC COMPANY | A | 773-774-0201 |
| 82000 | WINDY CITY ELECTRIC COMPANY | C | 773-774-0201 |
| 82100 | WIRING, INC. | A | 847 675-0372 |
| 82390 | WMI TECHNOLOGIES, INC. | A | 630-369-7100 |
| 80490 | WOLF ELECTRIC, INC. | A | (708) 385-6300 |
| 80490 | WOLF ELECTRIC, INC. | C | (708) 385-6300 |
| 80500 | WOOD DALE ELECTRICAL CONSTRUCTION | A | 630 295-9100 |
| 80500 | WOOD DALE ELECTRICAL CONSTRUCTION | R | 630 295-9100 |
| MUN100 | WOODLAWN COMMUNITY DEVELOPMENT CORP. | MUNICIPAL | 773 288-5840 |
| R02000 | WORLD WIDE BROADCASTING | RACE | 847-358-7111 |
| 82500 | WRIGHT ELECTRIC CO., OF CHICAGO, INC. | A | 847 679-7520 |
| CHK10925 | ZENITH CONTROLS, INC. | MANUFACTURING | 773 247-6400 |
