| Company | Timeline | Status | |
| Auto Transmissions Ltd Director • Engineer | 24 Mar 1999←26 Years→Current | Active | |
| F.J. Payne & Son Limited Director • Engineer | 23 Oct 1996←29 Years→Current | Active | |
| Tim Payne Overdrive Designs Limited Director • Mechanical Engineer | 16 Feb 1994←31 Years→Current | Active | |
