Costco Wholesale Corporation is an American multinational corporation which operates a chain of membership-only big-box warehouse club retail stores.
The company opened its first warehouse (the chain’s term for its retail outlets) in Seattle in 1983. Costco’s worldwide headquarters are in Issaquah, Washington, an eastern suburb of Seattle, although its Kirkland Signature house label bears the name of its former location in Kirkland.
- Industry: Retail
- Founded: September 15, 1983
- Headquarters: Issaquah, Washington, U.S.
- Website: costco.com