| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BLACK & VEATCH CORP | 101 N WACKER DR, STE 1100 | CHICAGO | IL | 60606 | (312) 346-3775 | (312) 346-4781 |
| BROWN & CALDWELL | 111 W JACKSON | CHICAGO | IL | 60604 | 773-943-7583 | |
| CDM SMITH INC | 125 S WACKER DR, STE 700 | CHICAGO | IL | 60606 | (312) 346-5000 | (312) 346-5228 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| DUPERON CORP | 1200 LEON SCOTT CT | SAGINAW | MI | 48601 | (989) 754-8800 | (989) 754-2175 |
| ENVIROBIDNET.COM | 24123 PEACHLAND BLVD C-4 310 | PORT CHARLOTTE | FL | 33954 | (888) 888-0900 | |
| GOSIA CARTAGE LTD | 6400 RIVER RD | HODGKINS | IL | 60525 | (312) 613-8735 | (630) 887-8460 |
| JOHN BURNS CONSTRUCTION CO | 17601 SOUTHWEST HWY | ORLAND PARK | IL | 60467 | (708) 326-3500 | (708) 479-4956 |
| 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 |
| K-FIVE CONSTRUCTION CORP | 999 OAKMONT PLAZA DR, STE 200 | WESTMONT | IL | 60559-5517 | (630) 257-5600 | (630) 257-6788 |
| KONECRANES INC, d/b/a CRANE PRO SVC | 1461 BERNARD DR | ADDISON | IL | 60101 | (630) 953-7840 | (630) 953-7845 |
| MICHELS CONSTRUCTION INC | 817 MAIN STREET | BROWNSVILLE | WI | 53006 | (630) 800-1547 | (630) 701-2907 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| PWXPRESS | 1900 COFFEEPORT RD | JACKSONVILLE | FL | 32208 | (408) 676-8941 | (408) 67608942 |
| SCHNEIDER ELECTRIC | 1111 PASQUINELLI DR | WESTMONT | IL | 60559 | (630) 478-3249 | |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| SPECIALTY CONSULTING INC | 2942 W VAN BUREN ST | CHICAGO | IL | 60612 | (312) 319-7575 | (312) 319-7580 |
| STEWART SPREADING INC | 3870 N IL RTE 71 | SHERIDAN | IL | 60551 | (815) 695-5667 | (815) 695-5770 |
| SYNAGRO CENTRAL LLC | 435 WILLIAMS CT, STE 100 | BALTIMORE | MD | 21220 | (443) 489-9000 | (443) 489-9042 |
| WULFEKUHLE | 27657 HIGHWAY 52 N | NEW VIENNA | IA | 52065 | (877) 477-3300 | (800) 704-7531 |
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