| Humana | PacifiCare | Prudential |
| AEGON | AIG / American General | Mercy Health Systems |
| Citigroup | Metris Companies |
Union Labor Life Insurance Company |
|
American Federation Of Teachers |
American Medical Security | Great West Life |
| Monumental General | Difinity Health Care | Laborers' International Union of North America |
| Blue Cross Blue Shield |
HIP Health Plans of New York |
UICI / NASE |