Rolls-Royce Holdings Plc designs, develops, manufactures, and services integrated power systems for use in the air, on land, and at sea. The company operates its business through following segments: Civil Aerospace, Power Systems, Defense and ITP Aero. The Civil Aerospace segment offers commercial aero engines and aftermarket services. The Power Systems segment includes engines, power systems and nuclear systems for civil power generation. The Defense segment consists of military aero engines, naval engines, submarines and aftermarket services. The ITP Aero segment provides aeronautical engines and gas turbines. The company was founded in March 1906 and is headquartered in London, the United Kingdom.