| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| A & L GREAT LAKES LABORATORIES INC. | 3505 CONESTOGA DR | FORT WAYNE | IN | 46808 | (260) 483-4759 | (260) 483-5274 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BSA ENVIRONMENTAL SERVICES INC | 23400 MERCANTILE RD, SUITE 8 | BEACHWOOD | OH | 44122 | (216) 765-0582 | (216) 765-0583 |
| ECOANALYSTS INC | 1420 S BLAINE ST, STE 14 | MOSCOW | ID | 83843-3973 | (208) 882-2588 | (208) 883-4288 |
| FEHR-GRAHAM & ASSOC | 221 E MAIN ST, STE 200 | FREEPORT | IL | 61032 | (815) 235-7643 | (815) 235-4632 |
| ICE MILLER LLP | 200 W MADISON ST, STE 3500 | CHICAGO | IL | 60606 | (630) 955-6126 | (630) 955-0662 |
| ILLINOIS INSTITUTE OF TECHNOLOGY | 3300 SO FEDERAL ST | CHICAGO | IL | 60616 | 312-567-7135 | 312-567-6980 |
| LIMNOPRO AQUATIC SCIENCE INC | PO BOX 721 | ST CLOUD | MN | 56302 | (320) 342-2210 | (320) 342-2210 |
| MICHAEL BAKER INTERNATIONAL INC | 200 W ADAMS ST, STE 1800 | CHICAGO | IL | 60606 | (312) 707-8770 | (312) 707-8804 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| PHYCOTECH INC | 620 BROAD ST, SUITE 100 | SAINT JOSEPH | MI | 49085 | (269) 983-3654 | (269) 983-3654 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| RHITHRON ASSOCIATES | 33 FORT MISSOULA | MISSOULA | MT | 59804 | (406) 721-1977 | (406) 531-2382 |
| 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 |
| SPECIALTY CONSULTING INC | 2942 W VAN BUREN ST | CHICAGO | IL | 60612 | (312) 319-7575 | (312) 319-7580 |