Key takeaways
- Michigan's central procurement office is Department of Technology, Management & Budget (DTMB), Procurement, and vendors register through SIGMA Vendor Self Service (VSS).
- Registration fee: Free.
- Registering makes you visible to state buyers; it doesn't guarantee business.
- Local governments, school districts and universities in Michigan often have their own vendor systems.
Quick facts
| Central procurement office | Department of Technology, Management & Budget (DTMB), Procurement |
|---|---|
| Registration system | SIGMA Vendor Self Service (VSS) |
| Where to register | sigma.michigan.gov |
| Registration fee | Free |
| What you'll need |
|
| Bid notifications | Registered vendors can receive bid notices, according to the state's site |
How to register, step by step
- Gather your information. Have these ready: Commodity codes; Business types; Email addresses for notifications.
- Register in SIGMA Vendor Self Service (VSS). Start at sigma.michigan.gov. Use your exact legal name and taxpayer ID so your record matches tax and payment systems.
- Describe what you sell. If the system asks for commodity or service codes, choose them carefully: agencies and bid notices often use them to find vendors.
- Keep your profile current. Update contacts, codes and documents so notices and purchase orders reach the right people.
- Look beyond the state. Cities, counties, school districts, universities and utilities in Michigan often run their own vendor registration and bid systems.
Good to know
Michigan schools and local governments that use SIGMA VSS can also send bid notices to registered vendors.
After you register
Registration is the entry ticket, not the sale. Most state purchases above small-dollar thresholds go through competitive bids or existing contracts, including cooperative contracts many agencies use. Watch the state's bid notices, learn which contracts agencies buy from, and start conversations with the program staff who own the problems you solve before a solicitation is written. Our guides to government buying signals and cooperative purchasing explain how.
How KSG helps
Kensington Sales Group helps companies that sell to government turn registrations into meetings. Our SDRs research agencies in Michigan, call the people who own the need and book meetings for your sales team. See our state and local government work.
Sources
- Official page: michigan.gov
Checked November 1, 2026. Requirements change; confirm details on the official site before you register.