Michigan Government Procurement Guide
Everything you need to know to bid on Michigan state government contracts — official portal, registration steps, small-business programs, and what's open right now.
Official portal
Michigan SIGMA Vendor Self Service (VSS) — https://sigma.michigan.gov/vss
Register through SIGMA Vendor Self Service to bid on Michigan state contracts.
Michigan small-business and set-aside programs
- Michigan Minority-Owned Business Enterprise certifications
- State Small Business Set-Aside
Confirm eligibility for each program before pursuing set-aside contracts — most require formal certification through the issuing state office.
Key statutory reference
Michigan Compiled Laws §18.1101 et seq. (Management and Budget Act)
Important notes
Michigan procurement is centralized through DTMB for executive branch agencies.
Step-by-step: how to bid on a Michigan state contract
- Register on Michigan SIGMA Vendor Self Service (VSS). Register through SIGMA Vendor Self Service to bid on Michigan state contracts.
- Identify your set-aside eligibility. Review the Michigan programs above and certify through the relevant state office if you qualify. Certifications can take weeks — start early.
- Set up bid notifications. Use Michigan SIGMA Vendor Self Service (VSS)'s notification system, plus aggregators like ProcureTap, to catch every relevant opportunity.
- Read each solicitation in full. Agencies routinely disqualify bids for non-responsiveness — address every numbered requirement.
- Submit before the deadline. Late submissions are not accepted under any circumstances. Michigan state agencies typically require submission through Michigan SIGMA Vendor Self Service (VSS) or the agency's designated portal.