Highmark

AARP 30 Accident Fund Insurance Company of America 27 Aetna 30 Afro-American Life Insurance Company 25 Allstate 29 American Automobile Association (AAA) 33 American Fidelity Assurance 21 American International Group (AIG) 27 Amerigroup 29 Arbella Insurance Group 13 Bankers Life and Casualty Company 5 Berkshire Hathaway 10 Blue Cross and Blue Shield Association 29 Centene Corporation 32 Cincinnati Financial Corporation 27 Compass Rose Benefits Group 25 Conseco 26 Erie Insurance Group 19 Evergreen USA RRG 31 Genworth Financial 26 GMAC Insurance 16 Gracy Title Company 29 GUARD Insurance Group 19 Humana 27 Jackson National Life 17 Kaleida Health 32 Knights of Columbus 32 Markel Corporation 21 Modern Woodmen of America 29 National Life Group 11 National Western Life Insurance Company 14 Nationwide Mutual Insurance Company 16 New York Life Insurance Company 18 Northwestern Mutual 18 Omega 33 Oxford Health Plans 18 Pacific Life 16 Philadelphia Insurance Companies 13 Physicians Mutual 21 Prudential Financial 29 Puerto Rico State Insurance Fund 28 Safe Auto Insurance Company 9 Safeco 15 Safeway Insurance Group 29 Thrivent 9 Transamerica Corporation 26 Tricare 30 United of Omaha 13 UnitedHealth Group 23 WellCare 28