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  • 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
    65 3-Ka Yang Pyungdong
    Youngdeungpo-Ku
    Seoul, Korea
    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