| Company | Timeline | Status | |
| Tryptic Limited Director • Unreported | 5 Jun 2025←5 Months→Current | Active | |
| RBLF Ltd Director • Unreported | 1 May 2025←6 Months→Current | Active | |
| Birtwell & Dorman LLP Designated LLP Member • Unreported | 27 Apr 2023←2 Years 6 Months→Current | Active | |
| Modial Ltd Director • Unreported | 18 Jul 2018←7 Years→Current | Active | |
| Elandus 2 Ltd Director • Project Manager | 27 Jun 2018←4 Years→4 Oct 2022 | Dissolved | |
| Ardra Ltd Director • Unreported | 24 May 2018←7 Years→Current | Active | |
| Amply Ltd Director • Unreported | 9 Mar 2018←7 Years→Current | Active | |
| Rib Ltd Director • Unreported | 6 Nov 2017←8 Years→Current | Active | |
| Rivers Birtwell Limited Director • Unreported | 17 May 2013←12 Years→Current | Active | |
| Rivers Birtwell Construction Limited Director • Unreported | 17 May 2013←1 Year 6 Months→1 Dec 2014 | Dissolved | |
