| Company | Timeline | Status | |
| Tyler Bros. (Sutton-In-Ashfield) Limited Director • Engineer | 5 Nov 2020←5 Years→Current | Active | |
| Tybro Limited Director • Civil Engineer | 5 Nov 2020←5 Years→Current | Active | |
| Tyler Brothers Limited Director • Engineer | 5 Nov 2020←5 Years→Current | Active | |
| Tyler Bros. Limited Director • Engineer | 5 Sep 1991←34 Years→18 Nov 2025 | Active | |
