Aerostar S.A. engages in the manufacture, integration, upgrade, and maintenance of aviation and defense systems for the civil aviation industry in Romania and internationally. It supplies aerostructures, sub-assemblies, and equipment for civil aviation; and manufactures landing gears and hydraulic systems. The company is also involved in MRO commercial aircraft; MRO and upgrades for military aircraft; and the production and integration of electronic, communication, and IFF systems on ground, naval, and airborne platforms. It also manufactures ground defense systems, such as rocket launchers, variants, and configurations; firing subsystem, reconnaissance and data subsystem; command and control system, and logistic support subsystem; and military equipment, including engineering equipment, truck mounted howitzers, and armored vehicles. The company was founded in 1953 and is headquartered in Bacau, Romania. Aerostar S.A. is a subsidiary of IAROM S.A.