| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| A & D PROPERTY SERVICES | 7346 S EXCHANGE AVE | CHICAGO | IL | 60649 | (773) 933-7840 | (708) 669-0386 |
| A-1 ROOFING | 1425 CHASE AVE | ELK GROVE VILLAGE | IL | 60007 | (847) 952-3600 | (847) 952-3606 |
| ADLER ROOFING & SHEET METAL | 779 JOYCE RD | JOLIET | IL | 60436 | (815) 773-1200 | (815) 773-1207 |
| ALL AMERICAN EXTERIOR SOLUTIONS | 150 OAKWOOD RD | LAKE ZURICH | IL | 60047 | (847) 438-4131 | (847) 438-1387 |
| ALL CONSTRUCTION GROUP | 1425 S 55TH CT | CICERO | IL | 60804 | (708) 298-9837 | (773) 489-0360 |
| ANTHONY ROOFING, A TECTA | 2555 WHITE OAK CIR | AURORA | IL | 60502 | (630) 898-4444 | (630) 898-4597 |
| 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 |
| CHICAGOLAND | PO BOX 3533 | PEORIA | IL | 61612 | (309) 401-6167 | (309) 401-6168 |
| CROWTHER CO, R B | 3805 E PINE BLUFF RD | MORRIS | IL | 60450 | (815) 942-6623 | (815) 942-1572 |
| DARDON CONSTRUCTION INC | 3925 W ARMITAGE AVE | CHICAGO | IL | 60647 | (773) 627-4800 | (999) 999-9999 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| DCG ROOFING SOLUTIONS INC | 2045 JANICE AVE | MELROSE PARK | IL | 60160 | (847) 296-6611 | (999) 999-9999 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| F&G ROOFING COMPANY LLC | 7322 ARCHER RD | JUSTICE | IL | 60458 | (708) 597-5338 | (708) 462-4144 |
| GARLAND/DBS INC | 3800 E 91ST ST | CLEVELAND | OH | 44105 | (216) 430-3513 | (216) 883-2055 |
| GSG CONSULTANTS INC | 623 COOPER CT | SCHAUMBURG | IL | 60173 | (312) 733-6262 | (312) 733-5612 |
| J&F CHIATTELLO CONSTRUCTION | 1387 JOLIET ST STE C | DYER | IN | 46311 | (219) 322-7660 | (219) 322-9320 |
| JOHN BURNS CONSTRUCTION COMPANY LLC | 999 OAKMONT PLAZA DR, SUITE 400 | WESTMONT | IL | 60559 | (708) 326-3500 | (000) 000-0000 |
| KORELLIS ROOFING INC | 1333 169TH ST | HAMMOND | IN | 46324 | (219) 844-1400 | (219) 844-0500 |
| L MARSHALL INC | 2100 LEHIGH RD | GLENVIEW | IL | 60026 | (847) 724-5400 | (847) 724-7306 |
| M W POWELL CO | 3445 S LAWNDALE AVE | CHICAGO | IL | 60623 | (773) 247-7438 | (773) 247-7441 |
| METALMASTER ROOFMASTER | 4800 METALMASTER WAY | MCHENRY | IL | 60050 | (815) 459-6415 | (815) 459-6596 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| ROBERTS RESTORATIONS | 43420 US ROUTE 45 | ANTIOCH | IL | 60002 | (847) 838-6125 | (847) 838-6125 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| SULLIVAN ROOFING INC | 60 EAST STATE PARKWAY | SCHAUMBURG | IL | 60173 | (847) 908-1000 | (847) 908-1099 |
| TORI CONSTRUCTION LLC | 4234 W 124TH PLACE | ALSIP | IL | 60803 | (708) 389-1530 | (708) 385-1107 |
| WINDY CITY REPRESENTATIVES LLC | 200 WINDSOR DRIVE | OAK BROOK | IL | 60523 | (630) 590-6933 | (630) 571-4110 |