The ITP Group, whose parent company is Industria de Turbo Propulsores, S. A. , shared by Sener Aeronáutica (53,125%) and Rolls-Royce (46,875%), among its activities is dedicated to Engineering, Research and Development, Manufacture, Assembly and Test of aeronautical engines and gas turbines. Additionally includes activities of in line engines maintenance and planes, and gives services of leasing and sale of engines and aircrafts. Ajalvir is the Maintenance Repair and Overhaul (MRO) Authorized Service Center for engines of the main Original Engine Manufacturers (OEM), with a repair capability of more than 400 engines a year.