Sports Authority, Inc. was an American sports retailer based in Englewood, Colorado. At its peak, Sports Authority operated 463 stores in 45 States and Puerto Rico. The company's website was on the GSI Commerce platform and supported the retail stores as well as other multi-channel programs. A joint venture with ÆON Co., Ltd., operates "Sports Authority" stores in Japan under a licensing agreement.

Dick's Sporting Goods, Inc. is an American chain of sporting goods stores founded in 1948 by Richard "Dick" Stack. It is the largest sporting goods retailer in the United States, and is listed on the Fortune 500.