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Where to bid in Ann Arbor, MI

The City of Ann Arbor posts its bids and RFPs on its bid page. Contracts here can also come from Washtenaw County and the State of Michigan (Michigan DTMB Procurement (SIGMA Vendor Self Service)).

City of Ann Arbor

Bid Process

Bid page checked, 2026-11-05.

Washtenaw County, MI

Official website (look for Bids, Purchasing or Procurement)

    Bid page not confirmed yet: start from the official site, 2026-11-05.

    State of Michigan

    Michigan DTMB Procurement (SIGMA Vendor Self Service)

      Bid page checked, 2026-11-05.

      Nearby cities

      SpendQuery links to Ann Arbor's own pages and doesn't copy their bids. Wrong or missing link?

      All of Michigan