| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ADVOCATE AURORA HEALTH INC | 3075 HIGHLAND PKWY | DOWNERS GROVE | IL | 60515 | (414) 379-2442 | (414) 643-6556 |
| AVESIS THIRD PARTY ADMIN | 10324 S DOLFIELD RD | OWINGS MILLS | MD | 21117 | (410) 581-8700 | (855) 896-0557 |
| 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 |
| BLUE CROSS BLUE SHIELD OF IL | 300 E RANDOLPH ST | CHICAGO | IL | 60601-5099 | (312) 653-1035 | (312) 729-2441 |
| CARMONA STRATEGIC SOLUTIONS | 3430 HARVEY AVE | BERWYN | IL | 60402 | (312) 714-4718 | (312) 733-5612 |
| DEARBORN GROUP | 1020 31ST ST | DOWNERS GROVE | IL | 60515-5591 | (972) 261-6051 | (312) 540-3108 |
| DOMINION | 650 W GRAND AVE | ELMHURST | IL | 60126 | (708) 495-1181 | (630) 408-7879 |
| E.REPUBLIC | 100 BLUE RAVINE RD | FOLSOM | CA | 95630 | (916) 932-1300 | (916) 932-1470 |
| ENVIROBIDNET.COM | 24123 PEACHLAND BLVD C-4 310 | PORT CHARLOTTE | FL | 33954 | (888) 888-0900 | |
| EYEMED VISION CARE | 4000 LUXOTTICA PL | MASON | OH | 45040 | (312) 288-6757 | (513) 492-6049 |
| METLIFE | 6085 MARSHALEE DR | ELKRIDGE | MD | 21075 | (667) 701-9222 | (443) 492-6768 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| SMARTPROCURE INC | 700 W HILLSBORO BLVD, STE 4-100 | DEERFIELD BEACH | FL | 33441 | (888) 998-8675 | (954) 399-7067 |
| VISION BENEFITS OF AMERICA | 400 LYDIA ST, SUITE 300 | CARNEGIE | PA | 15106 | (800) 432-4966 | (412) 881-5522 |
| VSP VISION CARE | 3333 QUALITY DR | RANCHO CORDOVA | CA | 95670 | (312) 651-7968 | (916) 463-3935 |