| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ANGSTROM LLC | 4455 S KING DR, SUITE 101B | CHICAGO | IL | 60653 | (913) 972-6779 | (913) 972-6779 |
| 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 |
| BUILDERS AVENUE | 1452 E 52ND ST | CHICAGO | IL | 60615 | (708) 232-3919 | (708) 232-3919 |
| 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 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| IRC INC | 520 N WEBSTER, PO BOX 520 | JACKSONVILLE | IL | 62651 | (217) 245-6181 | (217) 245-8605 |
| LABORERS DISTRICT COUNCIL-LMCC | 999 MCCLINTOCK DR | BURR RIDGE | IL | 60527 | (630) 655-9525 | (630) 655-9263 |
| LAVERDIERE CONSTRUCTION | 4055 W JACKSON | MACOMB | IL | 61455 | (309) 837-1258 | (309) 833-4993 |
| MCGILL CONSTRUCTION LLC | 21227 S 80TH AVE | FRANKFORT | IL | 60423 | (708) 846-7710 | (708) 924-1755 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| PRESCO ASPHALT SERVICES LLC | PO BOX 491 | RIVER GROVE | IL | 60171 | (773) 574-4157 | (847) 512-4275 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| TILES IN STYLE, D/B/A TAZA CONSTRUC | 16940 VINCENNES AVE | SOUTH HOLLAND | IL | 60473 | (877) 817-284... | (866) 552-8262 |
| UNITED CONTRACTORS MIDWEST | 3151 ROBBINS RD | SPRINGFIELD | IL | 62704 | (217) 546-6192 | (217) 546-1904 |