General Electric Co. engages in the provision of commercial and military aircraft engines and systems, wind, and other renewable energy generation equipment and grid solutions, and gas, steam, nuclear, and other power generation equipment. The company is headquartered in Cincinnati, Ohio and currently employs 125,000 full-time employees. The firm provides jet and turboprop engines, as well as integrated systems for commercial, military, business, and general aviation aircraft. Its portfolio of brands includes Avio Aero, Unison, GE Additive and Dowty Propellers. Avio Aero is a GE Aerospace business which operates in the design, manufacturing, and maintenance of civil and military aeronautics subsystems and systems. Dowty Propellers manufactures integrated propeller systems, which are used in applications that range from regional airliners and military airlifters to marine hovercraft. GE Additive offers a suite of products for additive manufacturing. Unison builds advanced gas turbine components and electrical and mechanical systems throughout the world. Its services include TrueChoice commercial services, TRUEngine, on wing support, regional and business aviation, and test services.