Information for Vendors

How to Become a Vendor

A Vendor Application form is submitted online. The applications go into a Vendor File maintained by the Accounts Payable Division of Finance.

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MITN Bid Notification Information

Washtenaw County is utilizing a regional bid notification system created exclusively for the Tri-County Purchasing Cooperative under the Michigan Intergovernmental Trade Network (MITN) e-procurement initiative.

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Prevailing Wage Link

Click here for current Prevailing Wage Information.

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W-9 Form

Click here to provide your current W-9 Information. Contact Accounts Payable with any questions.

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