Tribus Aerospace is an aerospace and defense precision machining company, focused on supplying mission critical components in turbine engine, motion control and flow control applications. Tribus Aerospace acquired Advanced Machining & Tooling (AM&T) in June 2017. Located in San Diego, California, AM&T specializes in precision CNC machining, electrical discharge machining (EDM) and waterjet cutting. In February 2018, Tribus Aerospace acquired Precision Aerospace Corp. (PAC) and Precision Micro Mill LLC (PMM). PAC is a Grand Rapids, Michigan-based manufacturer of complex parts and assemblies for a broad range of commercial aerospace and defense applications. Products include hydraulic manifolds, port caps, mounting flanges, housings, rotor parts and assemblies used in hydraulic pumps, fuel systems, and transmissions. PMM is a Wayland, Michigan-based captive contract manufacturer to PAC specializing in small volume, short lead time parts.