| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| AMERICAN VETERAN INDUSTRIES LLC | 15001 W 159TH ST | LOCKPORT | IL | 60491 | (815) 838-4200 | (815) 838-4200 |
| BAXTER & WOODMAN INC | 8678 RIDGEFIELD RD | CRYSTAL LAKE | IL | 60012 | (815) 459-1260 | (773) 444-0334 |
| 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 |
| BLINDERMAN CONSTRUCTION CO INC | 224 N DESPLAINES STREET, STE 650 | CHICAGO | IL | 60661 | (773) 444-0500 | (312) 496-3047 |
| CARDINAL STATE LLC | 1719 SPRING CREEK RD | BARRINGTON HILLS | IL | 60010 | (630) 808-3146 | (630) 326-8142 |
| CHICAGOLAND | PO BOX 3533 | PEORIA | IL | 61612 | (309) 401-6167 | (309) 401-6168 |
| CLEAN CUT TREE SERVICE INC | 31064 N IL RT 83 | GRAYSLAKE | IL | 60030 | (847) 265-0000 | (847) 265-0005 |
| 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 |
| ENCAP INC | 2585 WAGNER COURT | DEKALB | IL | 60115 | (815) 748-4500 | (815) 748-4255 |
| ENVIROBIDNET.COM | 24123 PEACHLAND BLVD C-4 310 | PORT CHARLOTTE | FL | 33954 | (888) 888-0900 | |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| FAIRFIELD SERVICE COMPANY | 707 W MORELAND BLVD, STE 4 | WAUKESHA | WI | 53188 | (262) 442-0018 | (219) 872-3000 |
| J F BRENNAN COMPANY INC | 501 ILLINOIS AVE | OTTAWA | IL | 61350 | (815) 979-8973 | (608) 519-5344 |
| JOHN BURNS CONSTRUCTION COMPANY | 999 OAKMONT PLAZA DR, STE 400 | WESTMONT | IL | 60559 | (312) 550-6067 | |
| JUDLAU CONTRACTING INC | 1011 WARRENVILLE RD, STE 475 | LISLE | IL | 60532 | (718) 554-2320 | (331) 777-5771 |
| K.L.F. ENTERPRISES INC | 2044 W 163RD ST, #2 | MARKHAM | IL | 60428 | (708) 331-4200 | (708) 333-5466 |
| MATTHEWS PROPERTY SERVICE | 3049 W JACKSON BLVD | CHICAGO | IL | 60612 | (312) 351-2102 | (872) 281-5205 |
| MCKISSACK & MCKISSACK MIDWEST INC | 205 N MICHIGAN AVE, STE 1930 | CHICAGO | IL | 60601 | (312) 751-9800 | (312) 751-1667 |
| MISFITS CONSTRUCTION COMPANY | PO BOX 803663, 233 S WACKER DR, STE | CHICAGO | IL | 60606 | (312) 420-5041 | (206) 339-3613 |
| NATIONAL POWER RODDING CORPORATION | 2500 W ARTHINGTON ST | CHICAGO | IL | 60612-4108 | (312) 666-7700 | (312) 666-5810 |
| 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 |
| QUANTUM CROSSINGS LLC | 111 E WACKER DR, STE 990 | CHICAGO | IL | 60601-4304 | (312) 467-0065 | (312) 467-0340 |
| SHERIDAN PLUMBING & SEWER INC | 6754 W 74TH ST | BEDFORD PARK | IL | 60638 | (708) 475-7100 | (708) 475-7138 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| TERRAZAS LLC | 4656 WEST OFFNER RD | MONEE | IL | 60449 | (630) 364-9542 | (708) 898-1632 |
| THORNTON EQUIPMENT SERVICE INC | 500 THORNHOUSE CR | NEW LENOX | IL | 60451 | (708) 479-7531 | (708) 479-7591 |