Cardpool, Inc. provides a gift card exchange marketplace for customers to buy, sell, and trade their pre-owned gift cards. The company connects gift card holders worldwide to buy discounted gift cards or sell gift cards for cash. It provides cards under various categories, including apparel and accessories, arts and crafts, automotive, baby and maternity, back to school, beauty and health, birthday, books, music and movies, children and toys, Christmas, clothing, construction, convenience and drug stores, department stores, electronics, entertainment, fast food, flowers and gifts, gas, grocery, home furnishing, home improvement, jewelry, mother's day, movie tickets, office supplies, pet supplies, restaurants, shoes, sports and sporting goods, travel, valentine's day, and wedding. The company was founded in 2009 and is based in San Francisco, California. As of September 15, 2011, Cardpool, Inc. operates as a subsidiary of Blackhawk Network Holdings, Inc.