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Click the Register button to register a new or existing account.

Welcome to State of Michigan SIGMA Vendor Self Service (VSS)

The State of Michigan SIGMA Vendor Self Service (VSS) system allows you, as a payee/vendor/grantee, to manage your information, view your financial transactions, view business and grant opportunities and much more. Click on the Register button to begin filling out an electronic application to become a payee/vendor/grantee. Please disable your pop-up blocker in order to access all parts of the site.

This site is best viewed with Internet Explorer 11 and Firefox 3.5 or 3.6.

If you have questions, please contact the State of Michigan (SIGMA VSS) Support Center at SIGMA-Vendor@Michigan.gov or by calling 517-284-0550. The State of Michigan SIGMA VSS Support Center office hours are 7:00 AM until 5:00 PM EST, Monday - Friday.


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Click on link below to view the list of department contacts.

Agency Contacts

Forms and Reference Documents

Click on a form below to either save it to your desktop or open it in Adobe.

Forms used by Foreign payees:

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