| Company | Timeline | Status | |
| The Long Distance Walkers Association Limited Director • Architect | 15 Mar 2015←5 Years→15 Mar 2020 | Active | |
| Burritt Holland Limited Director • Architect | 15 Jun 2001←21 Years→20 Sep 2022 | Dissolved | |
| Hol-Saf Design Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
