
The Airbus Zephyr is a series of lightweight solar-powered UAV.

The BAE Systems Mantis Unmanned Autonomous System Advanced Concept Technology Demonstrator is a British demonstrator programme for Unmanned Combat Air Vehicle (UCAV) technology. The Mantis is a twin-engine, turboprop-powered UCAV with a wingspan of approximately 22 m, broadly comparable to the MQ-9 Reaper. Other partners involved in Phase 1 of the Mantis programme include the Ministry of Defence, Rolls-Royce, QinetiQ, GE Aviation, L-3 Wescam, Meggitt and Lola.

The Corax, also known as Raven, is a prototype unmanned aerial vehicle (UAV) for the British Armed Forces being developed by BAE Systems Military Air & Information.
The Demon is an experimental unmanned aerial vehicle (UAV) developed and manufactured by British defence conglomerate BAE Systems. It has been referred to as being the world's first "flapless" aircraft.

The BAE Systems Persistent High Altitude Solar Aircraft (PHASA-35) is a High-Altitude Long Endurance (HALE) unmanned aerial vehicle (UAV) developed by BAE Systems in collaboration with Prismatic. Designed as a cheaper alternative to satellites, the aircraft can be used for surveillance, border control, communications and disaster relief with a potential ability to stay airborne for up to 12 months. Developed in less than two years, the aircraft carried out its first flight in February 2020 and further trials are currently ongoing.

The BAE Systems Phoenix was an all-weather, day or night, real-time surveillance Unmanned Air Vehicle. It had a twin-boom UAV with a surveillance pod, from which the imagery was data linked to a ground control station (GCS) that also controlled the aircraft in flight. It was the third generation of UAV in British Army service with the Royal Artillery after SD/1 and Canadair Midge.

The Black Hornet Nano is a military micro unmanned aerial vehicle (UAV) developed by Prox Dynamics AS of Norway, and in use by the armed forces of the United States, France, the United Kingdom, Germany, Australia, Norway, the Netherlands and India.

The Royal Aircraft Establishment Larynx was an early British pilotless aircraft, to be used as a guided anti-ship weapon. Started in September 1925, it was an early cruise missile guided by an autopilot.

The Thales Watchkeeper WK450 is an unmanned aerial vehicle (UAV) for all weather, intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) use by the British Army. It is provided under an £800 million contract with UAS Tactical Systems (U-TacS), a joint venture of Elbit and Thales UK, and is based on Elbit's Hermes 450.