| Company | Timeline | Status | |
| Frame Design Limited Director • Director | 25 Jul 2006←15 Years→7 Sep 2021 | Dissolved | |
| Whitehead Designs Contracts Limited Director • Unreported | 19 Sep 1997←28 Years→Current | Active | |
| Whitehead Developments Limited Director • Poduction Director | 3 Feb 1993←32 Years→Current | Active | |
| Whitehead Developments Limited Secretary • Poduction Director | 3 Feb 1993←32 Years→Current | Active | |
| Whitehead Designs Limited Director • Production Director | 21 Feb 1992←8 Years→30 Nov 2000 | Active | |
