| Company | Timeline | Status | |
| Birley Grange Management Company Limited Director • Chairman Nigel Holmes Ltd | 5 Nov 2020←4 Years→Current | Active | |
| Nigel Holmes Limited Director • Company Director | 22 Jun 1991←34 Years→Current | Active | |
| Nigel Holmes Limited Director • Company Director | 1 Jan 1970←55 Years→16 May 2025 | Active | |
