Website Design The Sidney-Shelby Economic Partnership (SSEP) is a not-for-profit organization consisting of private business and public leaders from across Shelby County who are dedicated to maintaining the county’s economic growth and stability. SSEP serves Shelby County as the economic development point of contact for this area. We work closely with local and state officials to make known financial and employment incentives available under Ohio law. We are here to help you build a successful business.