For assistance, please call at 210-207-0118 or e-mail Vendor Support. This section will help you navigate and understand the City's procurement processes, including how to pursue City contracts.Submit bids that reflect the best price your firm can offer and the delivery times that you can meet. Asp) Bid Opportunities Portal. Physical Address 1103 S Frio St Purchasing Suite San Antonio, TX 78207. Directions. Catalogs shall be mailed to the Finance. Department, Procurement Division, P.O. Box 839966, San Antonio, TX 78283-3966 prior to bid opening. View the Opportunity Home San Antonio procurement bids and policies to consider doing business with Opportunity Home. This page consists of current and upcoming bid notices. Goods and services are purchased in accordance with Local, State and Federal provisions and include informal and formal solicitations for bids and proposals.