Michigan SIGMA Vendor Self Service (VSS)
Michigan SIGMA Vendor Self Service (VSS) is the official state procurement portal for Michigan. Vendors register here to receive bid notifications and submit responses on Michigan state agency contracts.
Portal URL: https://sigma.michigan.gov/vss
How to register on Michigan SIGMA Vendor Self Service (VSS)
Register through SIGMA Vendor Self Service to bid on Michigan state contracts.
Cost: Free. Vendor registration on Michigan SIGMA Vendor Self Service (VSS) does not require payment. Some ancillary certifications (Michigan Minority-Owned Business Enterprise certifications) are handled by separate Michigan agencies.
Small business and set-aside programs
Michigan operates the following programs. Certification is separate from Michigan SIGMA Vendor Self Service (VSS) vendor registration but is recognized on state contracts:
- Michigan Minority-Owned Business Enterprise certifications
- State Small Business Set-Aside
Governing law
Michigan Compiled Laws §18.1101 et seq. (Management and Budget Act)
Michigan procurement is centralized through DTMB for executive branch agencies.
Current Michigan bid opportunities
Live from Michigan SIGMA Vendor Self Service (VSS) plus every Michigan county, city, school district, hospital, and university procurement system. Updated every 6 hours.
- Rackham Slate Implementation Partner RFP
- Banquet Linen & Laundry Service Short term rental of banquet linen, uniform rental, purchase/launder of garments.
- Gift Card & Reward Card Program The University of Michigan seeks to establish a centralized Gift and Reward Card Services program and platform for the purpose of supporting employee, non‑employee, and student rewards and incentives.
- Y1DA--585-337 Expand Pharmacy and Radiology (MINOR) PR 585-26-4-337-0003
- ITB 4666 - 2026 Sidewalk Improvement Program; Contract No. 13
- RFQ 4670 - Municipal Service Center - Architectural & Eng RFQ & Cost Proposal
- ITB 4674 - Woody Debris Management Project
- ITB 4675-Professional Eng Service West Parking Lot Expansion RFQ & Cost Proposal
- RFP 4676 - Valley Pump Station Generator Engineering and Construction Services
- ITB 4673 - 2027 City of Midland Calendar/Service Guide
- RFP 4677 - Eng. Services: Grant-Funded Lift Station Expansion/Upgrade
- ITB 4678 - 2026 Currie Pkwy. Bridge Touch-up Paint
- ITB 4679 - Currie Municipal Golf Course Pro Shop Rooftop Unit Replacement
- ITB 4680 - Asphalt Crack Sealing & Seal Coating
- ITB 4681 - City Hall/County Services Building Sidewalk Replacement Re-Bid
Common questions about Michigan SIGMA Vendor Self Service (VSS)
What is Michigan SIGMA Vendor Self Service (VSS)?
Michigan SIGMA Vendor Self Service (VSS) is the official state procurement portal for Michigan. Register through SIGMA Vendor Self Service to bid on Michigan state contracts.
How do I register on Michigan SIGMA Vendor Self Service (VSS)?
Register through SIGMA Vendor Self Service to bid on Michigan state contracts. The registration is free and typically completed online at https://sigma.michigan.gov/vss.
What is the Michigan SIGMA Vendor Self Service (VSS) login URL?
Michigan SIGMA Vendor Self Service (VSS) is accessed at https://sigma.michigan.gov/vss. Registered vendors log in there to view solicitations and submit bids on Michigan state contracts.
Are there small-business or set-aside programs on Michigan SIGMA Vendor Self Service (VSS)?
Yes. Michigan operates the following preference and set-aside programs relevant to Michigan SIGMA Vendor Self Service (VSS) bidders: Michigan Minority-Owned Business Enterprise certifications, State Small Business Set-Aside. Each has its own certification process.
What law governs procurement through Michigan SIGMA Vendor Self Service (VSS)?
Michigan procurement is governed by Michigan Compiled Laws §18.1101 et seq. (Management and Budget Act). Michigan procurement is centralized through DTMB for executive branch agencies.
Where do I find current Michigan SIGMA Vendor Self Service (VSS) opportunities?
Michigan SIGMA Vendor Self Service (VSS) publishes opportunities at https://sigma.michigan.gov/vss. ProcureTap also aggregates Michigan state contracts plus every county, city, school district, hospital, and university procurement system in the state — updated every 6 hours.