National Horsemen's Benevolent & Protective Association (HBPA)

The Jockey Club
Virginia Racing Commission
National Thoroughbred Racing Association (NTRA)
Virginia Thoroughbred Association (VTA)
Maryland Thoroughbred Horsemen's Association (MTHA)
New York Thoroughbred Horsemen's Association (NYTHA)
Grayson-Jockey Club Research Foundation

National Steeplechase Association
Virgina Steeplechase Association

Colonial Downs
Laurel Park
Charles Town Races
TVG

Equibase Company
Daily Racing Form
Thoroughbred Times