REI is a retail company that specializes in outdoor recreation gear and clothing. The company was founded in 1938 by Lloyd and Mary Anderson in Seattle, Washington. REI is a consumer cooperative, meaning that it is owned by its members and operates for their benefit. The company has over 170 stores in the United States and is known for its commitment to environmental stewardship and sustainability. REI has been recognized as one of the best companies to work for in the United States.