Historic Flying Limited is a British company that specialises in the restoration and new-build of Supermarine Spitfires. It is based at the former RAF Duxford.
The company was founded in the late 1980s to restore five Spitfires to flying condition; these had been "gate guardians" at Royal Air Force stations.
Some two dozen aircraft have been built from scratch - using salvaged parts where available - or restored. This is said to be a third of the Spitfires that are now airworthy.
References
Historic Flying Limited Wikipedia(Text) CC BY-SA