An American aerospace manufacturer and a global leader in rotary-wing aviation, founded in 1923 by aviation pioneer Igor Sikorsky. The company is historically significant for developing the VS-300, the world’s first practical single-rotor helicopter, and the R-4, the first mass-produced helicopter to enter military service. Sikorsky’s engineering philosophy transitioned the helicopter from an experimental concept into a foundational military tool, establishing the single-rotor and tail-rotor configuration as the global industry standard.
In the modern era, Sikorsky is the primary supplier of utility and heavy-lift helicopters for the U.S. military. Its portfolio includes the UH-60 Black Hawk series, which serves as the most widely used military utility helicopter in the world, and the CH-53K King Stallion, the most powerful heavy-lift helicopter in the U.S. fleet. Now a subsidiary of Lockheed Martin, the company continues to pioneer next-generation vertical lift technologies, such as the S-97 Raider (featuring coaxial rotors) and optionally piloted autonomous systems.