As of 1/30/12:
APS Medical Billing
ArthroCare ENT
Cumberland Pharmaceuticals
Emergency Consultants, Inc.
Emergency Groups' Office
Hantz Financial
Insurance Data Services
Janssen Pharmaceuticals, Inc.
Marina Medical Billing Service
Mindray North America
Pfizer, Inc.
ProAssurance Casualty Company (gold sponsor)
Sunovion Pharmaceuticals, Inc.
Team Health
U.S. Army