- Aetna
- AIG
- American Interstate
- Ameritas
- Anthem Blue Cross Blue Shield
- Assurant
- Boston Mutual Life Insurance Company
- CareFirst BlueCross BlueShield
- Carolina Casualty
- Chubb
- Chubb
- Cigna
- CNA
- Coventry Health
- Delta Dental
- Denta Quest
- Destiny Health
- Donegal
- Employers Health
- EyeMed
- Farmers Insurance
- Fireman's Fund
- General Star
- Genesis
- Genworth
- Golden Rule
- Great American
- Great West Life
- Guardian
- Hartford
- Hartford Life
- John Alden
- Kaiser Permanente
- Kemper
- Lexington
- Liberty Mutual
- Lincoln Financial Group
- MetLife
- Montgomery
- Mutual of Omaha
- National Grange Mutual
- New England Life Insurance
- Ohio Casualty
- Pacific Mut.
- Peninsula
- Penn Natl.
- Philadelphia
- PMA Grp.
- Principal Financial Group
- Progressive
- Prudential
- QBE
- Reliance Std.
- Safeco
- Standard Ins.
- Steadfast
- Sun Life
- Travelers
- UniCare
- United Healthcare
- UNUM/Provident
- Voya Financial
- VSP
- Zurich