Senior Plc engages in the design, manufacture, and markets technology components and systems for the aerospace, defense, land vehicle, and energy markets. it operates through the Aerospace and Flexonics business divisions. Aerospace Division provides engineering solutions for the rigorous challenges of bleed air duct systems, precision sheet metal fabrications, bellows, metal hose assemblies, and other pressure carrying components that are flying in virtually all military and commercial aircraft, numerous piston and jet engines, and are specified for missile and NASA programs. Flexonics division manufactures automotive components and focuses on diesel engines. The company was founded on December 18, 1933 and is headquartered in Rickmansworth, the United Kingdom.