Arizona buys through a central state purchasing office, and its cities, counties and school districts buy on their own as well. To sell to the state you register once as a vendor, then watch for solicitations in your commodity codes and respond by the deadline. This page covers the state registration steps, where bids are posted and the programs that help small businesses, with links to the official pages.
How to register as a Arizona vendor
- Go to the Arizona Procurement Portal (app.az.gov) and register as a supplier; ADOT notes suppliers may register at any time.
- Select the products and services you sell so APP can send you notices of quotes (RFQs), bids (IFBs) and proposals (RFPs) that match them.
- Use the State Procurement Office supplier overview for registration information, training and support (https://spo.az.gov/app/supplier/overview).
Registration gets you on the state's list, but it rarely sends you every relevant bid. Many agencies, and most local governments, post on their own portals. A free BidsNexus alert watches the state portal and Arizona's local agencies for you and emails the matches each morning.
Cities, counties and school districts
Counties run their own systems; for example, Maricopa County posts solicitations on BidNet Direct (https://www.bidnetdirect.com/arizona/maricopacounty) and says the only thing required to do business with the county is the free registration there.
Local bids are where most small businesses win their first contracts: smaller dollar values, shorter responses and less competition from national firms. BidsNexus collects them into one list, so you can browse every open Arizona bid in one place.
Tips specific to Arizona
- ADOT states that only registered vendors are assured of receiving notices of RFPs and Invitations for Bid, so register before you need a specific bid.
Open Arizona bids with upcoming deadlines
See all 675 open Arizona bids →
What Arizona agencies are buying
Open Arizona bids on BidsNexus right now, by category:
- Construction: 33 open
- Aerospace & Defense: 32 open
- Healthcare: 16 open
- Information Technology: 14 open
- Transportation & Logistics: 8 open
- Computer Hardware: 6 open
Next steps
- Register with the state (above) and, for federal work, in SAM.gov.
- Find your NAICS codes so you're matched to the right solicitations.
- Learn how to read an RFP quickly and make a bid/no-bid decision.
- Set up a free daily alert for Arizona in your categories.
Sources
Checked against the state's official pages on September 23, 2026. Rules and portals change, so confirm details on the official site before you register or bid.
https://azdot.gov/business/procurement/vendor-registration
https://www.maricopa.gov/634/Doing-BusinessVendor-Registration