Prior to World War I George Handasyde and Paul Martin built a number of designs of other manufacturers, eventually becoming a major supplier of fighting aircraft to the allies during World War I.
Airdrome Aeroplanes of Holden, Missouri, has for some years produced plans and kits for a series of scale replicas of well known fighters from World War I fitted with modern engines. One of these is a full-scale replica of the Sopwith Pup.