| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ABRON INDUSTRIAL SERVICES LLC | 115 NORTH ELM ST | MT PROSPECT | IL | 60056 | (773) 418-8374 | |
| ACS ENTERPRISES INC | 7117 W GRAND AVE | CHICAGO | IL | 60707 | (773) 637-0731 | (773) 637-6325 |
| AFFILIATED STEAM EQUIPMENT CO | 12424 S LOMBARD LN | ALSIP | IL | 60803 | (708) 371-0600 | (708) 371-0670 |
| AIR COMFORT CORP | 2550 BRAGA DR | BROADVIEW | IL | 60153 | (708) 345-1900 | (708) 345-5860 |
| AIR FILTER ENGINEERS | 489 MISSION ST | CAROL STREAM | IL | 60188 | (630) 384-0400 | |
| AKAN MECHANICAL INC | 7316 S COTTAGE GROVE AVE | CHICAGO | IL | 60619 | (773) 739-6579 | (773) 739-6559 |
| ALLIANCE ALLIED INC | 1448 SAGE DR | BOLINGBROOK | IL | 60490 | (224) 247-2639 | (999) 999-9999 |
| AMALGAMATED SERVICE INC | 21024 S 80TH AVE | FRANKFORT | IL | 60423 | (708) 417-5946 | (815) 464-5196 |
| ANCHOR MECHANICAL INC | 255 N CALIFORNIA | CHICAGO | IL | 60612 | (312) 492-6994 | (312) 492-6996 |
| ASA MECHANICAL LLC | 14429 S BENSLEY AVE | CHICAGO | IL | 60633 | (773) 407-2328 | (999) 999-9999 |
| BCE-USA LLC | 3500 MARTENS ST | FRANKLIN PARK | IL | 60131 | (815) 556-8037 | (815) 556-8076 |
| BIDNET | 15 BRITISH AMERICAN BLVD | LATHAM | NY | 12110 | (518) 438-009... | (518) 689-7038 |
| CAMFIL USA INC | 1041 W REPUBLIC DR | ADDISON | IL | 60101 | (630) 543-5221 | (630) 543-5222 |
| CARRIER CORP | 7501 S QUINCY ST, STE 110 | WILLOWBROOK | IL | 60527 | (630) 516-3278 | |
| CHICAGO UNITED INDUSTRIES LTD | 505 N LAKE SHORE DR, STE 205 | CHICAGO | IL | 60611 | (312) 786-1471 | |
| CHILLCO INC | 30042 N DIXIE RANCH RD | LACOMBE | LA | 70445 | (985) 809-0888 | (985) 809-0331 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| CORE MECHANICAL INC | 4632 W LAWRENCE AVE | CHICAGO | IL | 60630 | (773) 267-6300 | (773) 267-6333 |
| CT MECHANICAL | 1200 W CAPITAL DR | ADDISON | IL | 60101 | (630) 227-1700 | (847) 483-1370 |
| EPLAN ONLINE PLANROOM | 1400 FORUM BLVD, STE 7B | COLUMBIA | IL | 65203 | (573) 447-7130 | (573) 355-5405 |
| FILTERBUY INCORPORATED | 101 POPE STREET | TALLADEGA | AL | 35160 | (855) 345-8289 | (256) 761-2565 |
| GASVODA & ASSOCIATES INC | 1530 HUNTINGTON DR | CALUMET CITY | IL | 60409 | (708) 891-4400 | (312) 894-1138 |
| HEINLEIN SUPPLY CO | 5516 N ELSTON AVE | CHICAGO | IL | 60630 | (773) 774-8616 | (773) 774-8622 |
| HI-TEK MECHANICAL LLC | PO BOX 434 | SOUTH ELGIN | IL | 60177 | (855) 244-4835 | (855) 244-4835 |
| INDI ENTERPRISE INC | 535 CHIPPEWA TR | CAROL STREAM | IL | 60188-1589 | (630) 462-6980 | (630) 868-3861 |
| JOHNSON CONTROLS INC | 3007 MALMO DR | ARLINGTON HEIGHTS | IL | 60005 | (847) 545-5623 | (847) 364-1536 |
| KEY WEST METAL INDUSTRIES INC | 13831 S KOSTNER AVE | CRESTWOOD | IL | 60445 | (708) 371-1470 | (708) 371-1570 |
| MIDWEST AIR FILTER, INC | 4156 DANVERS COURT SE | GRAND RAPIDS | MI | 49301 | 616-459-2602 | 616-459-2602 |
| 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 |
| QUALITY HVAC SOLUTIONS LLC | 1200 CAPITOL DR | ADDISON | IL | 60101 | 312-409-0651 | 708-926-2024 |
| SIEMENS INDUSTRY INC | 585 SLAWIN CT | MT PROSPECT | IL | 60056 | (847) 803-2700 | (847) 803-2733 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| TILES IN STYLE LLC | 16940 VINCENNES AVE | SOUTH HOLLAND | IL | 60473 | (877) 817-284... | (866) 552-8262 |
| WINDY CITY REPRESENTATIVES LLC | 200 WINDSOR DRIVE | OAK BROOK | IL | 60523 | (630) 590-6933 | (630) 571-4110 |
| WINFIELD GROUP CORPORATION | 475 S FRONTAGE RD, UNIT 100 | BURR RIDGE | IL | 60527 | (708) 837-2469 | (999) 999-9999 |
| WLFSTR INC | 2940 AUTUMN DR | WOODRIDGE | IL | 60517 | (708) 256-2426 | (630) 324-6256 |