| Company | Timeline | Status | |
| Newby Castleman LLP Designated LLP Member • Unreported | 23 Feb 2017←3 Years→24 Dec 2020 | Active | |
Fighting Oesophageal Reflux Together Director • Chartered Accountant | 23 Nov 2011←6 Years→15 May 2018 | Dissolved | |
| Chelmer Films LLP Non-designated LLP Member • Unreported | 6 Mar 2006←19 Years→5 Apr 2025 | Active | |
| Orwell Films LLP Non-designated LLP Member • Unreported | 31 Mar 2005←20 Years→5 Apr 2025 | Active | |
| Newby Castleman (Leicester) Limited Director • Chartered Accountant | 16 Mar 2005←15 Years→8 Jan 2021 | Active | |
| Newby Castleman (Financial Services) Limited Director • Chartered Accountant | 7 Sep 2000←19 Years→4 Jun 2020 | Dissolved | |
Indemniform Limited Director • Chartered Accountant | 9 Feb 1992←22 Years→31 Mar 2014 | Dissolved | |
