| Company | Timeline | Status | |
| M.A. Blyth Limited Director • Unreported | 10 Jan 1994←31 Years→Current | Active | |
| Gartincaber Estate Limited Director • Director | 10 Jan 1994←25 Years→11 Mar 2019 | Active | |
| M.A. Blyth Limited Secretary • Unreported | 20 Jan 1992←33 Years→Current | Active | |
| Blyths (Properties) Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
