Aircraft manufacturers of the United Kingdom

Flylight Airsports is a British aircraft manufacturer based in Northamptonshire. The company specializes in the design and manufacture of ultralight trikes and is noted for its line of retractable gear single seat aircraft, such as the Dragonfly. The company also acts as importer for several lines of aircraft including the Best Off Skyranger and the Aeros line of hang gliders.

Hybrid Air Vehicles (HAV) Limited is a British limited company and a British manufacturer of hybrid airships, though none have been built since the crash of its last demonstrator in Nov 2017. These aircraft use both aerodynamics and lighter-than-air (LTA) technology to generate lift, potentially allowing the vehicle to stay aloft for several weeks.

BAE Systems plc is a British multinational aerospace, defence and information security company, based in London, England. It is the largest manufacturer in Britain as of 2017. It is the largest defence contractor in Europe and the seventh-largest in the world based on applicable 2021 revenues. Its largest operations are in the United Kingdom and in the United States, where its BAE Systems Inc. subsidiary is one of the six largest suppliers to the US Department of Defense. Its next biggest markets are Saudi Arabia, then Australia; other major markets include Canada, Japan, India, Turkey, Qatar, Oman and Sweden. The company was formed on 30 November 1999 by the £7.7 billion purchase of and merger of Marconi Electronic Systems (MES), the defence electronics and naval shipbuilding subsidiary of the General Electric Company plc (GEC), with British Aerospace, an aircraft, munitions and naval systems manufacturer.

British Aerospace plc (BAe) was a British aircraft, munitions and defence-systems manufacturer that was formed in 1977. Its head office was at Warwick House in the Farnborough Aerospace Centre in Farnborough, Hampshire. It purchased Marconi Electronic Systems, the defence electronics and naval shipbuilding subsidiary of the General Electric Company, in 1999 to form BAE Systems.

SEPECAT (French: Société Européenne de Production de l'avion Ecole de Combat et d'Appui Tactique) was an Anglo-French aircraft manufacturer. Established during 1966, its aim was to handle the development and commercialization of the Jaguar, an attack and training aircraft. Organised as a Société Anonyme, the company was joint venture between British Aircraft Corporation and Breguet.

Wasp Flight Systems (often called just Wasp Systems) is a British aircraft manufacturer based in Kendal, Cumbria and run by Chris Taylor. The company specializes in the design and manufacture of powered hang gliders in the form of ready-to-fly motorized harnesses for the US FAR 103 Ultralight Vehicles rules and the European microlight category.

Bailey Aviation is a British aircraft manufacturer originally based in Bassingbourn, Royston and later in Over, Cambridgeshire. The company was founded by Paul Bailey and specializes in the design and manufacture of paramotors in the form of ready-to-fly aircraft for the US FAR 103 Ultralight Vehicles rules and the European rules. The company also builds aircraft engines.

Thruster Air Services was a British aircraft manufacturer based in Langworth, Lincolnshire. The company specialized in the design and manufacture of ultralight aircraft in the form of ready-to-fly aircraft for the Fédération Aéronautique Internationale microlight category.

P&M Aviation was a British aircraft manufacturer, specializing in ultralight trikes, founded in 2003. The company was purchased by Albatross Flying Systems in 2019.

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