Osage Advisors Closes Sale of Tier One, LLC to ARCH Medical Solutions Share Article Tier ONE's Newtown, Connecticut facility adds capabilities to ARCH Medical in milling, mill-turn, Swiss machining, and other manufacturing operations.The additional capacity and resources will enable ARCH to meet the needs of its growing customer base and medical device contract manufacturing service offerings. CENTERBROOK, Conn. (PRWEB) April 09, 2021 Osage Advisors, a leading mergers and acquisitions firm providing sell-side advisory services to business owners, is pleased to announce the acquisition of its client Tier ONE, LLC by ARCH Medical Solutions Corp. Based in Newtown, Connecticut, Tier ONE is a leading contract manufacturer of high-precision assemblies and other devices serving various segments of the life science research, and medical diagnostic and laboratory equipment markets.