Biever joins Challenge Unlimited FacebookTwitterEmail ALTON — Challenge Unlimited has named Clint Biever as the newly appointed sales director. In his new position, Biever will be responsible for growing the organization’s client base which utilizes the services offered by the nonprofit, including the assembly, packaging production and facilities maintenance. “When I learned what the organization was all about, and what their mission is, I knew I wanted to be part of providing opportunities for people with all disabilities,” Biever said. Biever has held the roles of territory, regional and divisional sales managers in a variety of industries, including financial services, commercial auctions and propane systems.