ADVERTISEMENT FOR BIDS The County of Winnebago, Wisconsin, a tax-exempt municipal corporation under Wisconsin Statute 77.54(9a), will receive sealed bids up to 3:00 p.m. on December 3, 2025, for the following: ITB-089-2025 Winnebago County is seeking bids from qualified contractors to provide all labor, equipment, and materials to replace the chiller at Wittman Airport Control Tower. Contractors may obtain copies of the Bid Documents from https://procurement.opengov.com/portal/winnebagocountywi. If you are not a member of OpenGov, please contact the Purchasing Department for information on how to sign up free of charge. A pre-bid meeting will be held on November 18, 2025 at 10:00 a.m. Meet at gate #33 which is located west of the Airport Tower at 3110 Knapp St Oshkosh WI 54902. Bids must be electronically filed on the OpenGov platform, no later than 3:00 p.m., central time, December 3, 2025. Bids received after the above hour and date, will be returned unopened to the bidder. A bid bond, payable to Winnebago County in an amount of five percent (5%) of the bid amount must accompany the bid as a guarantee that if the bid is accepted, the bidder will execute and file the proper contract within ten (10) days after award of the contract. Contractor shall furnish a Public Improvement Performance/Labor and Materials Payment Bond pursuant to Sec. 779.14 WI Statutes, with a surety duly authorized to and licensed to do business in the State of Wisconsin for use and benefit of claimants in an amount not less than the contract sum. Bids will be opened and publicly read at 3:00 p.m., central time, December 3, 2025 in the 1st Floor Conference Room, Room 119, in the Winnebago County Administration Bldg., 112 Otter Avenue, Oshkosh, WI. Bids will also be available on OpenGov immediately after unsealing. Winnebago County is not liable for any costs incurred in replying to this request. We reserve the right to reject any and all bids and to accept the bid(s) considered most advantageous to Winnebago County. Requests for additional information should be directed to the Purchasing Department, 112 Otter Ave., Oshkosh, WI 54901, (920) 232-3427, or sschry@winnebagocountywi.gov. Published: Oshkosh Northwestern – 11/10/25 & 11/17/25 WNAXLP November 10, 17 2025 LWIX0403065