| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| 5150 INC D/B/A BERG-JOHNSON | 1000 WESTGATE DR, STE 151 | ST PAUL | MN | 55114 | (952) 941-5400 | (999) 999-9999 |
| AIR COMFORT LLC | 2550 BRAGA DR | BROADVIEW | IL | 60155 | (708) 774-0582 | (999) 999-9999 |
| ALL AMERICAN EXTERIOR SOLUTIONS | 150 OAKWOOD RD | LAKE ZURICH | IL | 60047 | (847) 438-4131 | (847) 438-1387 |
| AUGUSTA FIBERGLASS | 86 LAKE CYNTHIA RD | BLACKVILLE | SC | 29817 | (803) 284-2246 | (803) 284-2309 |
| BIDAMERICA | 30 N GOULD ST | SHERIDAN | WY | 82801 | (850) 462-3332 | (850) 462-3332 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BLACKRIDGE RESEARCH & CONSULTING | 4041 W HOLLOW CREEK DR | PEORIA | IL | 61615 | (917) 993-7467 | (917) 993-7467 |
| BROADWAY ELECTRIC INC | 831 OAKTON | ELK GROVE VILLAGE | IL | 60007-1904 | (847) 593-0001 | (847) 593-0004 |
| CHICAGOLAND | PO BOX 3533 | PEORIA | IL | 61612 | (309) 401-6167 | (309) 401-6168 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| DAHME MECHANICAL INDUSTRIES INC | 610 S ARTHUR AVE | ARLINGTON HTS | IL | 60005 | (847) 253-0341 | (847) 253-9501 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| EMSL ANALYTICAL INC | 200 ROUTE 130 NORTH | CINNAMINSON | NJ | 08077 | (856) 858-4800 | (856) 786-5971 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| GHX INDUSTRIAL LLC | 10321 WERCH DR | WOODRIDGE | IL | 60517 | (847) 373-0789 | (630) 685-4111 |
| GRANITE CONSTRUCTION CO | 1011 E TOUHY AVE, STE 500 | DES PLAINES | IL | 60018 | (847) 919-8200 | (866) 736-9487 |
| HARRINGTON INDUSTRIAL PLASTICS LLC | 1020 DAVEY RD, STE 700 | WOODRIDGE | IL | 60517 | (630) 972-5570 | (630) 972-5571 |
| IHC CONSTRUCTION CO LLC | 385 AIRPORT RD, STE 100 | ELGIN | IL | 60123 | (847) 742-1516 | (847) 742-6610 |
| INDEPENDENT MECHANICAL | 2671 UNITED LN | ELK GROVE VILLAGE | IL | 60007 | (773) 243-0575 | (773) 496-8136 |
| INTEGRATED DEMOLITION SERVICE LLC | 1312 PROSPECT AVE | WILLOW SPRINGS | IL | 60480 | (708) 369-7508 | (999) 999-9999 |
| JOHN BURNS CONSTRUCTION COMPANY LLC | 999 OAKMONT PLAZA DR, SUITE 400 | WESTMONT | IL | 60559 | (708) 326-3500 | (000) 000-0000 |
| JUDLAU CONTRACTING INC | 1011 WARRENVILLE RD, STE 475 | LISLE | IL | 60532 | (718) 554-2320 | (331) 777-5771 |
| KALETECH LLC | 3831 MCCOY DR, #109 | AURORA | IL | 60504 | (630) 853-2533 | (630) 604-2344 |
| LAI LLC | 5400 NEWPORT DR, STE 10 | ROLLING MEADOWS | IL | 60008 | (847) 392-0990 | (847) 392-1095 |
| LANDAU ASSOCIATES | 532 N 5TH AVE | DES PLAINES | IL | 60016 | (847) 401-5690 | (000) 000-0000 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| ORNELAS CONSTRUCTION COMPANY | 12520 W HORSESHOE DR | NEW LENOX | IL | 60451 | (815) 462-7600 | (815) 462-7601 |
| PATH CONSTRUCTION COMPANY INC | 125 E ALGONQUIN RD | ARLINGTON HEIGHTS | IL | 60005 | (847) 398-7100 | (847) 398-7101 |
| PETERSON AND MATZ, INC. | 757 S 8TH ST | WEST DUNDEE | IL | 60118 | (847) 844-4405 | (847) 844-4409 |
| QUANTUM CROSSINGS LLC | 111 E WACKER DR, STE 990 | CHICAGO | IL | 60601-4304 | (312) 467-0065 | (312) 467-0340 |
| SIEMENS INDUSTRY INC | 1701 GOLF ROAD, STE 3-500 | ROLLING MEADOWS | IL | 60008 | (847) 803-2700 | (847) 803-2733 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| TRICK MARKETING | 407 VILLA COURT | NORTH MANCHESTER | IN | 46962 | (260) 229-1744 | (260) 229-1744 |
| WUNDERLICH-MALEC | 937 NATIONAL AVENUE | ADDISON | IL | 60101 | (630) 827-0200 | (630) 827-0208 |