- Aetna U.S. Healthcare
- Aetna U.S. Healthcare-California
- AFLAC
- AIM Funds
- Allianz Life of North America
- Allied National
- American Specialty Health Plans (ASHP)
- American Vision Plan
- AmeriHealth
- Ameritas
- Anthem Blue Cross & Blue Shield of Nevada
- Anthem Blue Cross and Blue Shield
- Anthem Insurance Companies, Inc.
- Assurant
- AUL
- Bankers Life & Casualty
- BC Life & Health Insurance Company
- Beneficial Life
- Blue Cross
- Blue Cross of California
- Blue Shield
- Blue Shield of California
- BMA
- California Choice-California
- Canada Life Financial Corporation
- Ceridian Corporation
- Chubb Group of Insurance Companies
- CIGNA
- Clarendon Insurance Group
- Cobra Pro
- Colonial Life & Accident Insurance
- CPIC Life Insurance Company
- Delta Dental
- Dental Health Services, Inc.
- Denticare of CA
- Exec-U-Care
- Express Scripts
- Eye Care Plan of America
- First Colony Life
- FlexPro
- Fort Dearborn Life Insurance Company
- Fremont Compensation Insurance Group
- GE Life
- GE Life Assurance Company
- Golden West Dental
- Great West Life
- GroupLink Reliastar
- Guardian
- Health Net
- Health Net Dental, Inc.
- Health Plan Adminstrators
- Hometown Health
- Horizon Blue Cross Blue Shield of New Jersey
- Humana
- ING Group
- Jackson National Life
- Kaiser Permanente-California
- Lifeguard – California
- Medical Eye Services
- MetLife
- Nationwide
- Nationwide Health Plans CA
- New England Life
- New York Life
- Nippon Life Insurance Company of America
- Old Line Life
- OnQue Technologies, Inc.
- Oxford Health Plans, Inc.
- Pacific Life
- Pacific Mutual
- PACIFICARE – California
- PACIFICARE – Nevada
- PACIFICARE – Texas
- PacifiCare Health Systems, Inc.
- Pan American Life Insurance Company
- Paul Revere Life Insurance Company
- Petersen International
- Phoenix Home Life Insurance
- Premier Access Dental
- Principal Financial Group
- Principal Life Insurance Company
- Principal Medical & Dental
- Provident Life and Accident Insurance Company
- Reliastar
- SafeGuard Health Enterprises
- Security-Connecticut Life Insurance Company
- Sharp Health Plan
- Smilesaver
- Standard Insurance Company
- State Compensation Insurance Fund
- Sun Life Financial
- The Guardian and PHS – CT
- The Hartford
- The HIPC/PacAdvantage
- The New England Financial
- Transamerica Life
- Travelers Insurance Company
- Trigon BC/BS
- U.S. Life
- UNICARE Life & Health Insurance Company
- United American Life Insurance Company
- United Concordia Dental
- United Health Care
- United Healthcare
- UNUM
- UNUM Provident
- US Financial Life Insurance Company
- Van Kampen Funds Inc.
- Vision Plan of America
- Vision Service Plan Insurance Company
- Wellpoint
- Zurich Kemper Life Insurance