Rolls-Royce 

Rolls-Royce Holdings plc functions as a global industrial technology firm, established in 1884 and headquartered in London, United Kingdom. The company's diverse activities are organized into four primary divisions: Civil Aerospace, Power Systems, Defence, and New Markets. The Civil Aerospace division specializes in the design, production, and sale of aircraft engines for major commercial airliners, regional jets, and corporate aviation, while also providing extensive post-sale support. Its Power Systems segment is dedicated to developing, manufacturing, marketing, and distributing integrated power and propulsion solutions for marine, defense, electricity generation, and industrial applications. Within the Defence division, Rolls-Royce supplies aerospace engines for military transport and surveillance aircraft, alongside naval propulsion systems and nuclear power units for submarines, all backed by comprehensive service and maintenance. The New Markets segment focuses on the innovation, production, and commercialization of compact modular reactors and cutting-edge electrical power systems. Additionally, the company provides essential maintenance, repair, and overhaul (MRO) services across its operations.