Organization interested in doing business with the County of San Mateo should register in Public Purchase:,ca/buyer/public/home

Public Purchase is the location where County solicitations are posted publicly. Firms should select all the categories of work that they qualify for. Once registered, firms will receive Invitation to Bid (ITB) and Request for Proposal (RFP) solicitations for the categories they registered for.

Registration as a supplier and placement on the supplier bid list does not guarantee notification. It is the supplier's responsibility to check the bid and proposal notices posted on the Public Purchase website.