COSTCO COMPANIES, INC. SUBSIDIARIES STATE OR OTHER JURISDICTION OF NAME UNDER WHICH INCORPORATION OR SUBSIDIARY DOES SUBSIDIARIES ORGANIZATION BUSINESS - ------------ ---------------- ------------------------------ Costco Wholesale Corporation Washington Costco Wholesale Corporation, Costco Wholesale The Price Company California The Price Company, Price Club, Costco Wholesale Costco Wholesale Canada Ltd. Canadian Costco Wholesale Canada Federal Ltd., Costco Wholesale Price Costco Canada Inc. Canadian Price Costco Canada Inc., Federal Price Costco, Costco Price Costco Canada Holdings Inc. Canadian Price Costco Canada Holdings Inc. Federal