TransDigm Group Incorporated engages in the design, production, and supply of engineered aircraft components for use on commercial and military aircraft worldwide. The company offers mechanical/electro-mechanical actuators and controls used in various actuation applications; ignition systems and components, such as igniters, exciters, and spark plugs used to start and spark turbine and reciprocating aircraft engines; gear pumps used primarily in lubrication and fuel applications; specialized valves and engineered connectors used in fuel, hydraulic, and pneumatic applications; power conditioning devices used to modify and control electrical power; specialized fluorescent lighting; specialized AC/DC electric motors and components used in various defense and commercial applications; and aircraft audio systems.It also provides engineered latching and locking devices used in various bin, security, and other applications; lavatory hardware and components; rods and locking devices used primarily to hold open cowlings to allow access to engines for maintenance; specialized cockpit displays; elastomers used in various clamping and heating applications; and NiCad batteries/chargers used to provide starting and back-up power. The companys customers include distributors of aerospace components; commercial airlines; large commercial transport and regional and business aircraft original equipment manufacturers (OEMs); various armed forces; defense OEMs; system suppliers; and various other industrial customers. The company, formerly known as TD Holding Corporation, was founded in 1993 and is based in Cleveland, Ohio.