| Company | Timeline | Status | |
| JC Payroll Services Limited Director • Partner | 1 May 2023←2 Years 6 Months→Current | Active | |
| James Cowper LLP Designated LLP Member • Unreported | 1 Nov 2019←6 Years→Current | Active | |
| JC XP Ltd Director • Partner | 1 Nov 2019←1 Year 8 Months→30 Jun 2021 | Dissolved | |
| James Cowper Services Limited Director • Partner | 1 Nov 2019←1 Year 8 Months→30 Jun 2021 | Active | |
| James Cowper Trustees Limited Director • Partner | 1 Nov 2019←1 Year 8 Months→30 Jun 2021 | Active | |
| Kreston James Cowper Limited Director • Partner | 1 Nov 2019←1 Year 7 Months→1 Jun 2021 | Dissolved | |
