Stack's Bowers Galleries, a privately owned company founded in 1935 and headquartered in the U.S., employs approximately 90 people. The company's primary business involves the sale of rare coins (including U.S., world, and ancient coins) and related luxury goods and jewelry. Sales are conducted through live auctions, online auctions, specialized auctions, and direct retail and wholesale channels. As of 2023, this remains their core business model.