Costco Markham Woodbine Customer Service Numbers Home» Costco» Costco Markham Woodbine Call at +1-905-477-57181 Yorktech Drive, Markham, Ontario L6G 1A6, CanadaDirections: Follow the directions to locate Costco Markham WoodbineLocations Near You: Find nearby locations of Costco Markham WoodbineHearing helps Phone Number: (204) 977-3950Optical Department Phone Number: (204) 788-4571Pharmacy Phone Number: (204) 788-4561For Costco.ca on-line orders: 1 888 426-7826For associateship and Warehouse: 1 800 463-3783For Costco.ca Photo Centre: 1 855 620-7582For Costco.ca Pharmacy: 1 855 622-5656For Costco Canada Travel: 1 855 863-0357Basic OverviewCostco is the reputed multinational retailing organization in the world that was founded in July 12, 1976 by James Sinegal and Jeffrey Brotman. It is ranked as the second largest retail company globally after Walmart. Headquartered in Issaquah, Washington, United States this company has over seven hundred retail outlets in various countries that includes United States, France, Canada, Mexico, South Korea, Japan and many others. It operates through physical as well as online stores. The main purpose of the warehouse is to provide opportunity to small and medium sized business to cut the resale costs.The Costco Wholesale Corporation or simply called as Costco Wholesale is a openly held corporation which was unraveled on 15 September, 1983 and was embarked by combined attempts of “James D. Sinegal” and “Jeffery H. Brotman”. this is noted as 3rd marvelous corporation in America as this monitors its assistance over utter country.