| Company | Timeline | Status | |
| Tim Mullen Racing Limited Director • Unreported | 23 Sep 2002←23 Years→Current | Active | |
| Tim Mullen Racing Limited Secretary • Unreported | 10 Jul 2002←23 Years→Current | Active | |
| Auto-Test Drivers Club (N.I.) Limited Director • Agricultural Sales Agent | 14 Sep 1984←41 Years→Current | Active | |
