| Company | Timeline | Status | |
| The Preston Associates Usa Ltd Director • Director | 18 Dec 2014←10 Years→Current | Active | |
| Coach Yourself Online Ltd Director • Business Coach | 11 Aug 2014←10 Years→11 Mar 2025 | Dissolved | |
The Dore Foundation Director • Executive Coach | 27 Apr 2010←2 Years 6 Months→24 Oct 2012 | Dissolved | |
| Thomas Preston & Associates Limited Director • Consultant | 10 Oct 2007←18 Years→Current | Active | |
