| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| AKAN MECHANICAL INC | 7316 S COTTAGE GROVE AVE | CHICAGO | IL | 60619 | (773) 739-6579 | (773) 739-6559 |
| AUTUMN CONSTRUCTION SERVICES INC | 87 EISENHOWER LANE SOUTH | LOMBARD | IL | 60148 | (630) 588-9585 | (630) 588-9586 |
| BECHSTEIN-KLATT, AKA | PO BOX 266 | PALOS PARK | IL | 60464 | (708) 532-3400 | (708) 448-9360 |
| BIDNET | 20A RAILROAD AVE | ALBANY | NY | 12205 | (800) 677-1997 | (518) 438-0599 |
| CONSTELLATION NEW ENERGY | 9400 BUNSEN PKWY, STE 100 | LOUISVILE | KY | 40220 | (312) 909-8108 | (443) 213-6117 |
| CONSTELLATION NEW ENERGY INC | 20 N WACKER DR, STE 2100 | CHICAGO | IL | 60606 | (667) 313-5417 | (443) 213-6097 |
| DELOITTE CONSULTING LLP | 111 S WACKER DR | CHICAGO | IL | 60606 | (312) 486-3057 | (312) 247-3057 |
| DIRECT ENERGY BUSINESS | 1 HESS PLAZA | WOODBRIDGE | NJ | 07095 | (732) 750-6888 | (732) 750-6026 |
| EA AMERICAS LLC | 20 DANADA SQ W 173 | WHEATON | IL | 60189 | (312) 259-9114 | (999) 999-9999 |
| ELITE GATES | 1336 MOORPARK RD | THOUSAND OAKS | CA | 91360 | 800-555-6017 | 310-456-9204 |
| ENGIE RESOURCES | 1 EAST 22ND ST | LOMBARD | IL | 60148 | (773) 405-2320 | |
| FAIRFIELD SERVICE COMPANY | 707 W MORELAND BLVD, STE 4 | WAUKESHA | WI | 53188 | (262) 442-0018 | (219) 872-3000 |
| GATE SUPPLIES, INC | 1336 N MOORPARK RD | THOUSAND OAKS | CA | 91360 | (310) 456-9204 | (310) 456-9204 |
| IGS ENERGY | 500 W MADISON, STE 1470 | CHICAGO | IL | 60612 | (847) 922-2598 | (312) 973-1733 |
| INDI ENTERPRISE INC | 535 CHIPPEWA TR | CAROL STREAM | IL | 60188-1589 | (630) 462-6980 | (630) 868-3861 |
| JACOBS ENGINEERING GROUP INC | 525 WEST MONROE ST, STE 1600 | CHICAGO | IL | 60661 | (312) 251-3000 | |
| JASON MECHANICAL CORPORATION | 660 COLLINS ST | JOLIET | IL | 60432 | (815) 723-6912 | (815) 723-6882 |
| LOPEZ INDUSTRIES INC | 9425 S KENTON AVE | OAK LAWN | IL | 60453 | (773) 851-0735 | (999) 999-9999 |
| MANSFIELD POWER & GAS LLC | 1025 AIRPORT PKWY SW | GAINESVILLE | GA | 30501 | (800) 695-6626 | (678) 450-2242 |
| MILHOUSE ENGINEERING & | 333 S WABASH AVE, STE 2901 | CHICAGO | IL | 60604 | (773) 661-8437 | (630) 519-4527 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| NRG ENERGY INC | 910 LOUISIANA ST | HOUSTON | TX | 77002 | (713) 537-3000 | |
| PIPE STRONG LLC | 650 E ALGONQUIN RD #200 | SCHAMBURG | IL | 60173 | 847-496-4526 | |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| PWXPRESS | 1900 COFFEEPORT RD | JACKSONVILLE | FL | 32208 | (408) 676-8941 | (408) 67608942 |
| R-SQUARE CORRELATIONS INC | 900 NATIONAL PKWY, STE 470 | SCHAUMBURG | IL | 60173 | (630) 326-3800 | (800) 472-1714 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| SOUTHERN COMPANY GAS | 10 PEACHTREE PLACE N.E | ATLANTA | GA | 30316 | 959-231-4302 | |
| SOUTHSTAR ENERGY SERVICES, D/B/A | 30 IVAN ALLEN JR BLVD NW STE 900 | ATLANTA | GA | 30308 | (630) 742-3865 | (630) 245-7826 |
| TWIN EAGLE | 100 W LAWRENCE | APPLETON | WI | 54913 | (920) 831-2524 | (920) 831-2551 |
| UNITED GASKET CORP | 1633 S 55TH AVE | CICERO | IL | 60804 | (708) 656-3700 | (708) 652-3614 |
| VALOR CONSTRUCTION SERVICES | 110 W WOODSTOCK ST, STE A | CRYSTAL LAKE | IL | 60014 | (219) 306-2558 | (219) 306-2558 |
| VANGUARD POWER SVCS LLC | 850 E DIEHL RD, STE 142 | NAPERVILLE | IL | 60563 | (630) 955-150... | (630) 955-0989 |