Grant Thornton LLP

RSM US LLP

Humana Inc. 

Blue Cross and Blue Shield Association

Blue Cross and Blue Shield of Massachusetts, Inc. 

Blue Cross and Blue Shield of Illinois

Carlson Hotels, Inc. 

CVS Health

CNA Insurance Company

Camico Mutual Insurance Company 

CPA Mutual Insurance Company 

General Star Insurance Company 

Crowe Horwath LLP

Liberty Mutual Insurance Companies

Marcum LLP

Miller Cooper & Company, Ltd.

Plante & Moran PLLC

Select Professional Insurance Co. 

XL Catlin