Ace Hardware is the largest retailer-owned hardware cooperative in the world. Although it is considered a franchised business because independent owners operate most of its locations, Ace is formally a retailers' cooperative.
Founded in 1924 in the Chicago area, Ace Hardware stores vary in size and product offerings to fit each neighborhood.

Ace franchisees are not only business owners, but also shareholders in the organization. The hardware chain also offers an option to convert stores from existing independent stores to an Ace Hardware store.