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 New Markets. 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 New Markets segment includes development, manufacture and sales of small modular reactors (SMRs) and new electrical power solutions. The company was founded in March 1906 and is headquartered in London, the United Kingdom.