Rolls-Royce 

Rolls-Royce Holdings plc operates as a prominent global industrial technology corporation, headquartered in London, United Kingdom, since its founding in 1884. The company's diverse activities are organized into four key divisions: Civil Aerospace, Power Systems, Defence, and New Markets. Its Civil Aerospace unit is dedicated to designing, manufacturing, and marketing aircraft engines for major commercial airlines, regional jets, and business aviation, alongside providing comprehensive after-sale support. The Power Systems segment concentrates on developing, producing, promoting, and selling integrated power and propulsion systems for various applications, including marine, defense, electricity generation, and industrial sectors. For military applications, the Defence segment supplies aero engines for transport and patrol aircraft, in addition to naval propulsion units and nuclear power plants for submarines, complete with associated maintenance services. Finally, the New Markets segment is focused on the creation, production, and distribution of small modular reactors (SMRs) and advanced electrical power solutions. Rolls-Royce also delivers extensive maintenance, repair, and overhaul (MRO) services throughout its product portfolio.