GREENBUSH-SEKESC NOTICE TO VENDORS. Sealed proposals are invited by the Purchasing Cooperative at Greenbush (Southeast Kansas Education Service Center) on behalf of its eligible participating entities for the following Request for Proposal (RFP): 26.7 ESC-HEARING-VISION2026 (Deadline JULY 17, 2026, 12:00 PM CENTRAL TIME) Interested parties may access specifications and forms by registering with Greenbush for free on Public Purchase at www.publicpurchase.com. Proposals must be uploaded to the Public Purchase platform before the deadline outlined in the timeline for each solicitation. Solicitation opening upon closing at Southeast Kansas Education Service Center, 947 W 47 HWY, Girard, KS 66743. IPL0353158 Jun 29,Jul 6 2026