| Company | Timeline | Status | |
| James Douglas Eot Limited Director • Director | 2 Dec 2024←11 Months→Current | Active | |
| Berkhamsted Tennis & Fitness Ltd Director • Company Director | 15 Nov 2020←1 Year→16 Nov 2021 | Active | |
| Nightkey Limited Director • Director | 26 Jan 2017←8 Years→Current | Active | |
| Nightkey Limited Director • Director | 26 Jan 2017←7 Years→3 Jan 2025 | Active | |
| Berkhamsted Sports Ground Charitable Association Limited Director • Managing Director | 1 Sep 2015←5 Years→5 May 2021 | Active | |
| Jeron Limited Director • Director/general Manager | 27 Apr 2006←19 Years→Current | Active | |
| James Douglas Limited Director • Director | 1 Jul 2005←20 Years→Current | Active | |
| Fleet Laboratories Limited Director • Director | 7 Apr 1997←3 Years→28 Feb 2001 | Dissolved | |
| D.D.D. Limited Director • Director | 30 Apr 1996←4 Years→28 Feb 2001 | Dissolved | |
