| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ARCHON CONSTRUCTION CO INC | 563 S RTE 53 | ADDISON | IL | 60101 | (630) 495-0015 | (630) 620-1295 |
| BENCHMARK CONSTRUCTION CO INC | 2260 SOUTHWIND BLVD | BARTLETT | IL | 60103 | (630) 497-1700 | (630) 497-1737 |
| BID OCEAN | PO BOX 40445 | GRAND JUNCTION | CO | 81504 | (970) 237-4411 | (970) 256-9704 |
| BROADWAY ELECTRIC INC | 831 OAKTON | ELK GROVE VILLAGE | IL | 60007-1904 | (847) 593-0001 | (847) 593-0004 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| CTLGROUP | 5400 OLD ORCHARD RD | SKOKIE | IL | 60077 | (847) 965-7500 | (847) 965-6541 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| INSITUFORM TECHNOLOGIES USA LLC | 1334 ENTERPRISE DR | ROMEOVILLE | IL | 60446 | (630) 842-8539 | (630) 257-9712 |
| INTEGRATED ENVIRONMENTAL | 13435 KOLMAR AVE | CRESTWOOD | IL | 60445 | (708) 926-9588 | (708) 926-9251 |
| KELSO-BURNETT CO | 5200 NEWPORT DR | ROLLING MEADOWS | IL | 60008 | (847) 259-0720 | (847) 483-3887 |
| KENNY CONSTRUCTION COMPANY | 2215 SANDERS RD, STE 400 | NORTHBROOK | IL | 60062 | (847) 309-1191 | (847) 272-5930 |
| LEGAL VIDEO SERVICES INC | 609 E LAKE SHORE DR | TOWER LAKES | IL | 60010 | (312) 551-0595 | |
| LEYDEN ELECTRIC INC | 604 E NORTH ST | ELBURN | IL | 60119 | (630) 365-0200 | (630) 365-0202 |
| LIVEWIRE ELECTRICAL SYSTEMS INC | 12900 S THROOP ST | CALUMET PARK | IL | 60827 | (708) 535-600... | (708) 535-6108 |
| MICHELS CORP | 817 W MAIN ST | BROWNSVILLE | WI | 53006 | (920) 924-4300 | (920) 924-4323 |
| MILHOUSE ENGINEERING & | 333 S WABASH AVE, STE 2901 | CHICAGO | IL | 60604 | (773) 661-8437 | (630) 519-4527 |
| PAUL BORG CONSTRUCTION CO | 2007 S MARSHALL BLVD | CHICAGO | IL | 60623 | (773) 523-1111 | (773) 376-1501 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| SAK CONSTRUCTION LLC | 864 HOFF RD | OFALLON | MO | 63366 | (636) 385-1031 | (636) 385-1131 |
| SHERIDAN PLUMBING & SEWER INC | 6754 W 74TH ST | BEDFORD PARK | IL | 60638 | (708) 475-7100 | (708) 475-7138 |
| SPINIELLO COMPANIES | 354 EISENHOWER PKWY # 1300 | LIVINGSTON | NJ | 07039 | (973) 808-8383 | (973) 860-2900 |
| XYLEM DEWATERING SOLUTIONS | 9661 194th ST | MOKENA | IL | 60448 | (815) 341-5244 | (708) 889-1561 |