What does Rolls Royce do?

Rolls-Royce Holdings plc is a UK-based company that specializes in designing, manufacturing, and maintaining power and propulsion solutions for air, maritime, and terrestrial applications. Headquartered in London, the company is a significant player in the aerospace, defense, marine, and energy sectors, employing around 43,162 people globally. Rolls-Royce reported a revenue of $27.96 billion in 2025 and is listed on the FTSE 100 Index. The company operates through four main business segments: Civil Aerospace, Defense, Power Systems, and New Markets. It offers a wide range of services, including lifecycle support for aircraft engines, naval propulsion systems, power generation solutions, and advanced digital engineering. Rolls-Royce also develops innovative technologies such as small modular reactors and hypersonic propulsion systems, catering to a diverse clientele that includes major airlines, defense ministries, and energy companies across the globe.