KPMG International 
Major international accounting and consulting firm.
http://www.kpmg.com/Ernst & Young
Major international accounting and consulting firm.
http://www.ey.com/
C. Lewis & Company, LLP
Specializing in forensic claims accounting and litigation support services for the insurance industry. Headquartered in Norwalk, Connecticut.
http://www.clewisworldwide.com/
PricewaterhouseCoopers
The world's largest professional services firm. It was formed in 1998 from a merger between Price Waterhouse and Coopers and Lybrand.
http://www.pwc.com/
