| Company | Timeline | Status | |
| Blackwell (Scotland) Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| BH Blackwell Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| Blackwell Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| Blackwell (Trustees) Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| Blackwell UK Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| W.Heffer & Sons Limited Director • Company Director | 29 Mar 2022←3 Years→Current | Active | |
| W. & G. Foyle Limited Director • Company Director | 25 Oct 2018←7 Years→Current | Active | |
