| Company | Timeline | Status | |
| Beyond The Brink Limited Secretary • Unreported | 3 Feb 2000←25 Years→Current | Active | |
| Clinical Practice Limited Secretary • Unreported | 30 Dec 1999←25 Years→Current | Active | |
| Marks Creative Limited Director • Designer | 9 Jul 1996←29 Years→Current | Active | |
| Marks Limited Director • Design Consultant | 23 Jun 1991←34 Years→Current | Active | |
| Hanington Limited Director • Design Consultant | 11 Mar 1991←34 Years→Current | Active | |
| Hanington Limited Secretary • Design Consultant | 11 Mar 1991←34 Years→Current | Active | |
