| Company | Timeline | Status | |
| Reading Professionals Foundation Director • Chartered Accountant | 1 Oct 2024←1 Year 2 Months→Current | Active | |
| James Cowper Kreston Audit LLP Designated LLP Member • Unreported | 28 Jan 2022←3 Years→Current | Active | |
| Kreston UK Limited Director • Director | 21 Jul 2020←5 Years→Current | Active | |
| James Cowper Kreston CF Limited Director • Accountant | 1 May 2020←3 Years→3 Oct 2023 | Dissolved | |
| James Cowper Kreston Corporate Finance Limited Director • Accountant | 1 May 2020←5 Years→Current | Active | |
| Spanish Ledge Management Co Limited Director • Director | 2 Jul 2018←7 Years→Current | Active | |
| JC XP Ltd Director • Director | 8 Oct 2014←9 Years→23 Jul 2024 | Dissolved | |
J C Corporate (Peal) Ltd Director • Director | 5 Apr 2012←2 Years 2 Months→17 Jun 2014 | Dissolved | |
| James Cowper Trustees Limited Director • Accountant | 29 Mar 2012←13 Years→Current | Active | |
| James Cowper Services Limited Director • Accountant | 1 May 2010←15 Years→Current | Liquidation | |
