| Company | Timeline | Status | |
| JC Payroll Services Limited Director • Unreported | 1 May 2021←4 Years→Current | Active | |
| James Cowper Trustees Limited Director • Unreported | 1 May 2017←8 Years→Current | Active | |
| JC XP Ltd Director • Unreported | 1 May 2017←4 Years→30 Jun 2021 | Dissolved | |
| James Cowper Services Limited Director • Unreported | 1 May 2017←4 Years→30 Jun 2021 | Active | |
| Kreston James Cowper Limited Director • Unreported | 1 May 2017←4 Years→1 Jun 2021 | Dissolved | |
| James Cowper LLP Designated LLP Member • Unreported | 1 May 2016←9 Years→Current | Active | |
