| AARP - United Healthcare Insurance Company |
| Aetna Life Insurance Company |
| American Family Life Assurance Company of Columbus |
| American Fidelity Assurance Company |
| Bankers Life and Casualty Company |
| Blue Cross and Blue Shield |
|
Connecticut General Life Insurance Company |
| Conseco Senior Health Insurance Company |
| Continental Casualty Company |
| Fortis Benefits Insurance Company |
| Fortis Insurance Company |
| GE Group Life Assurance Company |
| General Electric Capital Assurance Company |
| Golden Rule - United Healthcare |
| Great-West Life & Annuity Insurance Company |
| Guardian Life Insurance Company of America, The |
| Hartford Life and Accident Insurance Company |
| Humana Insurance Company |
| John Alden Life Insurance Company |
| Life Insurance Company of North America |
| Mega Life and Health Insurance Company, The |
| Metropolitan Life Insurance Company |
| Mutual of Omaha Insurance Company |
| Niagara Fire Insurance Company |
| Pacific Life & Annuity Company |
| Pacificare Life Assurance Company |
| Physicians Mutual Insurance Company |
| Principal Life Insurance Company |
| Prudential Insurance Company of America, The |
| Reliastar Life Insurance Company |
| State Farm Mutual Automobile Insurance Company |
| Stonebridge Life Insurance Company |
| Trustmark Insurance Company |
| Unicare Life & Health Insurance Company |
| United American Insurance Company |
| United Concordia Insurance Company |
| United of Omaha Life Insurance Company |
| United Wisconsin Life Insurance Company |
| Unum Life Insurance Company of America |
| Vision Service Plan Insurance Company |