New Vendor Requests

Jefferson County, Missouri is dedicated to open and competitive bidding as a means to obtain our requirements for all products and/or services. The Vendor List is used to procure goods and/or services through a formal bidding process. All vendors who wish to conduct business with the County should submit the required information using the Vendor Registration Form. While this form is not required to submit bids or proposals, this will help the County to source vendors for requested goods and/or services. The information required to become a vendor with the County includes: 

  • Address
  • Business name
  • Contact person
  • Email address
  • Information on the types of products and/or services the vendor can provide to the County
  • Phone number


Jefferson County, Missouri provides access to its registration as a courtesy to vendors. Information provided in these forms will be used to notify your company of future bid opportunities. Each vendor is responsible for maintaining and updating its contact information.

Vendors should complete and review their information for accuracy to ensure your business is receiving all bid notifications; failure to do so may result in the vendor not receiving notification of bidding opportunities.

Vendor Registration

Submit all vendor registration forms by mail or fax to:
Department of Administrative Services
Attention: Purchasing
P.O. Box 100
Hillsboro MO 63050

Phone: 636-797-5380
Fax: 636-797-5067