Ionia County construction: bids, contractors and projects

MDOT lettings, listed contractors and project news for Ionia County, Michigan, updated daily from public records.

Ionia County is part of our Grand Region coverage area and falls under MDOT Grand Region, headquartered in Grand Rapids. MDOT's public list includes 4 construction contractors with a Ionia County address: 4 prequalified contractors and 0 specialty contractors who have added a listing. The largest single group is MDOT Prequalified Contractor (4). Most are based in Portland, Ionia.

MDOT's MDOT letting schedule currently has 2 upcoming proposals in Ionia County, the next on Nov 6, 2026.

Upcoming MDOT lettings in Ionia County

Contractors based in Ionia County

Counts come from MDOT's prequalified contractors list for firms with an address in Ionia County. LARA sells its full licensee lists, which we have not bought, so other contractors are not listed yet; any firm can add or claim a listing.

• MDOT Prequalified Contractor: 4

Find Ionia County subcontractors Find Ionia County general contractors

Ionia County project news

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How to bid public work in Ionia County

State trunkline work in Ionia County is let by MDOT in Lansing; the county is in MDOT's Grand Region (MDOT regions). Each advertisement lists the prequalification classification a prime needs. See how to bid MDOT contracts.

State agencies buy through State of Michigan Procurement (see the vendor registration guide). Before you bid, check licensing (licensing guide) and your payment protections (lien deadlines).

Statewide rules that apply here

• Michigan construction lien and bond deadlines: 20 days, 90 days and one year

Nearby counties

Grand Region region: Allegan · Barry · Kent · Lake · Mason · Mecosta · Montcalm · Muskegon · Newaygo · Oceana · Osceola · Ottawa

Also in MDOT Region 3: (same as above)