He continued working at F. Perkins Limited for more than a decade[2] before re-joining the Royal Navy Reserve,[3] though remaining a consultant to the company.

Frank Perkins obtained further initial support from directors Alan J. M. Richardson and George Dodds Perks.

In October 1935, Perkins became the first company to hold six world diesel speed records for a variety of distances, set at the Brooklands race track in Surrey.

In 1994, the whole of Perkins was bought by LucasVarity,[9] who immediately closed down the Gardner brand and sold off the Barton Hall Motor Works in Patricroft, Eccles, Manchester.

[9] In 1998 Caterpillar Inc bought Perkins from LucasVarity for US$1.325 billion, creating what they claimed was the world's largest diesel engine manufacturer.

On 1 June 2018, Steve Ferguson became President of Perkins Engines, replacing Ramin Younessi, after having worked as the general manager of Caterpillar's Advanced Component Manufacturing Department and overseeing operations at 15 global facilities.

Perkins' 4.99 1.6 litre (99 cubic inch) and the P4C engine [192 cubic inch], producing 45 or 60 hp (45 kW), were popular in Europe and Israel for taxis and commercially driven cars during the 1950s and early 1960s; many cars, including American imports, were retrofitted with these engines for taxi use, with kits made by Hunter NV of Belgium.

Producing 112 horsepower (84 kW) in early years (later rising to 120-hp), it had a small jackshaft driven by the timing gears for the auxiliary drive, with the oil pump driven by a quill shaft so it could run auxiliary equipment at engine speed with simple couplings.