Vendor Registration

purchasing portal logo
Contra Costa County has developed the Purchasing Portal website to allow vendors to easily submit and manage their company's information. Purchasing Portal is the tool the County uses to select vendors, issue Purchase Orders, and manage business opportunity programs. Taking the time to register is the first step to doing business with the County.

Purchasing Portal can be reached by clicking on the link below or entering the following URL in your web browser: For detailed instructions on registering with Purchasing Portal, click on the Vendor Registration Instructions link below.

Click here to be redirected to the Purchasing Portal Website

For step-by-step instructions on how to register click here:
Vendor Registration Instructions

Click below to search a list of NIGP Codes.
NIGP Code List

For instructions on changing or adding information click here:
Maintaining Vendor Information