| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| A3 ENVIRONMENTAL LLC | 3030 WARRENVILLE RD, STE 418 | LISLE | IL | 60532 | (630) 935-4363 | |
| ALS GROUP USA CORPORATION | 2655 PARK CENTER DR, SUITE A | SIMI VALLEY | CA | 93065 | (805) 526-7161 | |
| APTIM ENVIRONMENTAL & | 1607 E MAIN ST, STE E | ST CHARLES | IL | 60174 | (630) 762-1400 | (630) 762-1402 |
| AQUA VITAE ENGINEERING LLC | 3400 W STONEGATE BLVD, STE #100-231 | ARLINGTON HEIGHTS | IL | 60005 | (847) 239-4512 | (847) 239-4512 |
| BBJ GROUP LLC | 140 S DEARBORN ST, STE 1520 | CHICAGO | IL | 60603 | (312) 644-8556 | (312) 644-8555 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| CARNOW CONIBEAR & ASSOC LTD | 600 W VAN BUREN, STE 500 | CHICAGO | IL | 60607 | (312) 762-2930 | (312) 782-5145 |
| CHICAGOLAND | PO BOX 3533 | PEORIA | IL | 61612 | (309) 401-6167 | (309) 401-6168 |
| CIVIL & ENVIRONMENTAL | 555 BUTTERFIELD RD, STE 300 | LOMBARD | IL | 60148 | (630) 963-6026 | (630) 963-6027 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| ENVIROBIDNET.COM | 24123 PEACHLAND BLVD C-4 310 | PORT CHARLOTTE | FL | 33954 | (888) 888-0900 | |
| ENVIROSCIENCE INC | 5070 STOW RD | STOW | OH | 44224 | (330) 414-6552 | (330) 688-3858 |
| EUROFINS ENVIRONMENT TESTING NORTH | 2417 BOND ST | UNIVERSITY PARK | IL | 60484 | (708) 534-5200 | (708) 534-5211 |
| GEOSYNTEC CONSULTANTS INC | 134 N LASALLE ST, STE 300 | CHICAGO | IL | 60602 | (312) 658-0500 | (866) 783-5766 |
| MILHOUSE ENGINEERING & | 333 S WABASH AVE, STE 2901 | CHICAGO | IL | 60604 | (773) 661-8437 | (630) 519-4527 |
| 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 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| TECHLAW | 55 W MONROE, STE 3450 | CHICAGO | IL | 60603 | (312) 345-8966 | (312) 345-8979 |
| TRICO CORP | 1235 HICKORY ST | PEWAUKEE | WI | 53072 | (262) 691-9336 | (262) 691-2576 |
| V3 COMPANIES LTD, D/B/A V3 WETLAND | 7325 JANES AVE | WOODRIDGE | IL | 60517 | (630) 724-9200 | (630) 724-9202 |