By around 1930 Listers were producing around 600 engines a week, most of which were small at around 1.5 to 3 hp; many of these had applications in the construction industry. Listers continued to flourish during the 1930s, riding the economic financial crisis and building on its many earlier successes.

Although R A Lister ceased production of many of its well known models many years ago, many of these engine are still in use today all over the world. Two of the most prominent suppliers of parts and services for these engine in the UK are Marine Engine Services Ltdand Sleeman & Hawken Ltd Another firm, Marine Power Services specialise in the restoration and marinisation of Lister engines for the inland waterways and the manufacture of component castings including Lister JP marine exhaust and water system manifolds.