| Company | Timeline | Status | |
| Don Valley Materials Handling Limited Director • Director | 1 Aug 2020←5 Years→Current | Active | |
| Don Valley Engineering Holdings Limited Director • Director | 27 Mar 2019←6 Years→Current | Active | |
| Torver Engineering Limited Director • Director | 27 Mar 2019←6 Years→Current | Active | |
| Cleeve Materials Handling Limited Director • Director | 27 Mar 2019←5 Months→2 Sep 2019 | Active | |
| Don Valley Engineering Group Limited Director • Director | 19 Mar 2019←6 Years→Current | Active | |
| Don Valley Engineering Construction Limited Director • Director | 1 Dec 2017←7 Years→Current | Active | |
| Don Valley Engineering Company Limited Director • Director | 1 Dec 2017←7 Years→Current | Active | |
