| Company | Timeline | Status | |
| Belmix Mixers Limited Director • Chartered Mechanical Engineer | 3 Jul 2003←22 Years→9 Dec 2025 | Dissolved | |
| Stane Street Investments Limited Director • Chartered Mechanical Engineer | 6 Oct 1998←27 Years→Current | Active | |
| Graham Bell Design (Sussex) Ltd Director • Engineer | 13 Aug 1998←27 Years→Current | Active | |
