William Scott Phillips

Phillips Service Industries, Inc. operates as a holding company which engages in the designing and manufacturing of precision ball screw and actuation solutions. The firm oversees a diverse collection of subsidiaries: Beaver Aerospace & Defense, Inc., Mountain Secure Systems, POWERTHRU, PSI Repair Services, Inc., PSI Semicon Services, and Sciaky, Inc. The company was founded by William T. Phillips in 1967 and is headquartered in Plymouth, MI.

Mountain Optech, Inc. manufactures wireless network equipment and related electronic devices. It offers rugged electronics, environmental and wireless network solutions, sealed rugged hard drives, rugged in flight entertainment (IFE) solutions, packaged solid state solutions. The company was founded in 1985 and is headquartered in Longmont, CO.

Beaver Aerospace & Defense, Inc. designs and manufactures ball screws and actuators. Its products include aileron trim, ALB, B plug, dish elevation, and door actuators; precision, in-stock, and industrial ball screws; and precision gears and assemblies, and gear and splines. The firm offers qualification and testing, design and engineering, and manufacturing capabilities to commercial, defense and space projects. The company was founded in 1952 and is headquartered in Livonia, MI.

Sciaky, Inc. provides welding systems and job shop welding services in the fabrication market. It offers electron beam welders, electron beam additive manufacturing solutions and advanced arc welders, and welding solutions. The company was founded in 1939 and is headquartered in Chicago, IL.