Senior 

Senior plc designs, manufactures, and markets high-technology components and systems for the principal original equipment producers in the aerospace, defense, land vehicle, and power and energy markets worldwide. The company operates in two divisions, Aerospace and Flexonics. The Aerospace division offers high-pressure and low-pressure engineered ducting systems, engineered control bellows, assemblies, and sensors; precision-machined and fabricated engine components; fluid systems ducting and control products; and precision-machined airframe components and assemblies. The Flexonics division provides exhaust gas recycling coolers, fuel mixing and distribution systems, and flexible couplings; and engineered expansion joints, dampers and diverters, flexible hose assemblies and control bellows, fuel cells and heat exchangers, and precision-machined components. The company was formerly known as Senior Engineering Group plc and changed its name to Senior plc in 1999. Senior plc was incorporated in 1933 and is based in Rickmansworth, the United Kingdom.