To participate in the RFQ process, you must be fully registered with iSupplier. Here is information on Selling to the City of Oakland.Bids in construction are typically submitted in hard copy. Ready to prepare your bid for submission? Get an overview of the bid process. For construction services, document an attempt at a third bid, if not obtained. Bids must estimate both costs and the time required to complete services. Visit the contractor's profile and click 'Invite to Bid. ' Fill out the project details, including scope, timeline, and specific needs. View the complete Bid Request and application packet here.