Winmark Corporation is a resale company that operates as a franchisor in the United States and Canada. Its franchise networks include Plato's Closet, Once Upon A Child, Style Encore, Play It Again Sports, and Music Go Round, which buy, sell, and trade gently used and, to a lesser extent, new merchandise across clothing, children's products, sporting goods, and musical instruments. The company also runs a middle-market equipment leasing business under the Winmark Capital brand and supplies point-of-sale system hardware and certain merchandise to its franchisees. Formerly known as Grow Biz International, Inc., it changed its name to Winmark Corporation in November 2001. Winmark was incorporated in 1988 and is headquartered in Minneapolis, Minnesota.