For Costco Customer Service please call 1-800-955-2292

For the Costco Corporate Office please call 425-313-8100


David Sherwood

Vice President, Financial Planning & Investor Relations

contact us by phone (425) 313 - 8239

Josh Dahmen

Assistant Vice President, Financial Planning & Investor Relations

contact us by phone (425) 313 - 8254





ADDITIONAL CONTACT INFORMATION


Charitable Contributions


Information Technology - Email: contact us by email isinfo@costco.com


Real Estate:

Locations

Prospective Sites


Vendor and Supplier Inquiries


Member Service


Corporate Office
999 Lake Drive
Issaquah, WA 98027