Senior Plc designs, manufactures and markets technology components and systems. The company operates its business through two divisions: Aerospace and Flexonics. The Aerospace division offers various products and systems for structures, fluid conveyance, and gas turbine engines, such as airframe and system components & assemblies, high-pressure and low-pressure engineered ducting systems, engineered control bellows, sensors and assemblies, fabricated engine components, and fluid systems ducting & control. The Flexonics division manufactures flexible automotive components, and offers products for land vehicle emission control and industrial process control applications which include exhaust gas recycling coolers, fuel mixing & distribution systems, flexible couplings, engineered expansion joints, dampers & diverters, flexible hose assemblies & control bellows, and fuel cells & heat exchangers. Senior was founded by David Lycett Green on December 18, 1933 and is headquartered in Rickmansworth, the United Kingdom.