Purchasing Services

Thank you for your interest in doing business with Contra Costa County.

Each year, the County procures over 165 million dollars in equipment, products and supplies through the Purchasing Division. Purchasing works closely with County departments to procure the goods and services they need.

Please email us if additional information or assistance is needed.

View current bids

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Register as a vendor

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Contact Us

  1. Purchasing

    40 Muir Road, 2nd Floor
    Martinez, CA 94553
    Phone: (925) 957-2499
    Fax: (925) 372-3643

    Business Hours
    8:00AM - 4:30PM

Getting Started

Purchasing Services is the place to start to identify business opportunities available to your business. We are open to responsible vendors who supply goods and services that are competitive, reliable and meet the County's needs.

Rules governing purchasing and contract procedures were established under the concept of open competitive bidding. Under the system, awards are made to the most responsible bidder who meets the published specifications, possess the capability to deliver the requested product or service, and offers the best value to the County.