Vendor Inquiries

Prospective vendors of non-food or sundry items can contact the corporate office at the addresses below.
Costco's corporate mailing address is:
PO Box 34331
Seattle, WA 98124
Costco's corporate offices are located at:
999 Lake Drive
Issaquah, WA 98027

Prospective vendors of food and sundry items can contact the appropriate division office:

US:

Northwest Region
999 Lake Drive
Issaquah, WA 98027
425-313-8100

Northern California Region
2820 Independence Drive
Livermore, CA 94550
925-456-7200

Los Angeles Region
11000 Garden Grove, #201
Garden Grove, CA 92843
714-534-7080

San Diego Region
4649 Morena Blvd.
San Diego, CA 92117
858-812-1400

Texas Region
1701 Dallas Parkway
Suite 201
Plano, TX 75093
972-246-3000

Midwest Region
1901 West 22nd Street
Second Floor
Oak Brook, IL 60523
630-581-6200

Northeast Region
45940 Horseshoe Drive
Suite 150
Sterling, VA 20166
703-406-6800

Southeast Region
3980 Venture Drive NW
Suite W100
Duluth, GA 30096
770-905-8800

International:

Eastern Canada Region
415 West Hunt Club Road
Ottawa, Ontario K2E 1C5
613-221-2000

Western Canada Region
Unit A - 4500 Still Creek Drive.
Burnaby, BC V5C 0E5
604-421-8353

United Kingdom Region
213 Hartspring Lane
Watford, Hertfordshire
England, UK WD2 8JS
011-44-1923-213-113

Korea Region
40 Iljik-ro, Gwangmyeong-si
Gyeonggi-do
Seoul, Korea 14347
011-82-2-2679-1234

Mexico Region
Boulevard Magnocentro No. 4
Col. San Fernando La Herradura
52760, Huixquilucan
Estado de México
011-525-552-46-5500

Taiwan Region
255, Min Shan Street
Neihu, Taipei 114, Taiwan
011-886-2-8791-9988

Japan Region
3-1-4 Ikegami Shincho
Kawasaki-ku, Kawasaki-shi
Kanagawa 210-0832 Japan
011-81-44-281-2600

Australia
Ground Floor, 17-21 Parramatta Rd
Lidcombe, NSW, Australia, 2141
011-61-2-9469-7999

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