Vendor Services

The Purchasing Department has moved out of the Sedgwick County Courthouse to the new location at 100 N. Broadway, Suite 610, Wichita, KS 67202.

Should you elect to participate with an electronic response, the RFB/RFP number must be entered in the subject line and email the entire document with supplementary materials to Purchasing@sedgwick.gov.

Should you elect to participate with a physical response, the response must be sealed and marked on the lower left-hand corner with the firm name and address, RFB/RFP number and the response due date. Submit one (1) original AND one (1) electronic copy (.PDF/Word supplied on a flash drive) of the entire document with any supplementary materials to: Buyer's Name, Sedgwick County Purchasing Department, 100 N. Broadway, Suite 610, Wichita, KS, 67202.

If you have any questions or difficulties, please contact Purchasing at 316-660-7255. For any in-person visits you must make an appointment via Purchasing@sedgwick.gov or call 316-660-7255.

Conducting Business with Sedgwick County

Please see the Purchasing Department website for details, or contact (316) 660-7255 or email the Purchasing Department.

If you or your firm are interested in conducting business with Sedgwick County, register as a Bidder at the Bidder Registration site.

How can we receive our payments faster?

Don’t mail your invoices! Save time and postage by sending all invoices to AP_Invoices@sedgwick.gov or faxing to 316-941-5127.
Include any purchase order (PO) numbers on the invoices.
Include IRS Tax ID / Federal EIN Number (FEIN) on all invoices.
To avoid delays in payments, get ACH payments! For more information: Vendor ACH Enrollment Information.

Tax Exempt Information

Sedgwick County is exempt from paying Kansas sales tax. To receive a copy of the County's tax-exempt certificate, please click the following link: Sedgwick County Exempt Certificate.

Sedgwick County W-9

2024 Sedgwick County W-9 form.