| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| BAKER TILLY MUNICIPAL ADVISORS LLC | 205 N MICHIGAN | CHICAGO | IL | 60601 | (317) 465-1537 | (312) 729-8199 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| BLACK & VEATCH CORPORATION | 180 N WACKER DR, STE 550 | CHICAGO | IL | 60606 | (312) 683-7850 | (312) 346-4781 |
| HDR ENGINEERING INC | 9450 W BRYN MAWR AVE, STE 400 | ROSEMONT | IL | 60018 | (773) 380-7900 | (773) 380-7979 |
| JACOBS ENGINEERING GROUP INC | 525 WEST MONROE ST, STE 1600 | CHICAGO | IL | 60661 | (312) 251-3000 | (999) 999-9999 |
| KLEINSCHMIDT ASSOC | 75 MAIN ST | PITTSFIELD | ME | 04967 | (207) 487-3328 | (207) 487-3124 |
| MDARCHEY LLC | 1093 CHADWICK CT | AURORA | IL | 60502 | (312) 415-0093 | (630) 851-0574 |
| MEAD & HUNT INC | 2440 DEMING WAY | MIDDLETON | WI | 53562 | (608) 273-6380 | (999) 999-9999 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| SCICORP INTERNATIONAL CORP | 874 WALKER ROAD | DOVER | DE | 19904 | (905) 829-1749 | (905) 829-1749 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| STANTEC CONSULTING SERVICES INC | 6605 W STEGER RD | MONEE | IL | 60449 | (708) 627-8018 | (999) 999-9999 |