- Aetna Financial Services
- Aetna Life Insurance Company
- Aetna U.S. Healthcare
- Aetna U.S. Healthcare-California
- AIG
- Anthem Blue Cross and Blue Shield
- Assurant
- Assurant Health
- BC Life & Health Insurance Company
- Blue Cross
- Blue Cross / Blue Shield
- Blue Cross Careousel
- Blue Cross of California
- Blue Shield
- Blue Shield of California
- Canada Life Financial Corporation
- CIGNA
- CPIC Life Insurance Company
- Delta Dental
- Dental Markets
- Express Scripts
- Eyemed Vision Care
- Great West Life
- Great-West Health Care
- Guardian
- HARTFORD
- Health Net
- Humana
- Kaiser Permanente
- Kaiser Permanente-California
- Medical Eye Services
- MetLife
- Mutual of Omaha Companies
- PACIFICARE – California
- PMI Dental Health Plan
- Premier Access Dental
- Principal Financial Group
- Principal Life Insurance Company
- Principal Medical & Dental
- Reliance Standard Life Insurance Company
- Smilesaver
- Standard Insurance Company
- Sterling HSA
- Sun Life
- The Hartford
- Travelers Insurance Company
- United Concordia Dental
- United Health Care
- UNUM
- Vision Service Plan Insurance Company