| Company | Timeline | Status | |
| Sync Technology Ltd Director • Director | 5 May 2016←9 Years→Current | Active | |
| Building Performance Prediction Ltd Director • Director | 27 Apr 2016←9 Years→Current | Active | |
| Caldwell Consulting North West Limited Director • Director | 25 Apr 2016←9 Years→Current | Active | |
| Vercon Engineering Limited Director • Director | 25 Apr 2016←9 Years→Current | Active | |
| Caldwell Consulting Engineers Limited Director • Manager | 29 Mar 2004←21 Years→Current | Active | |
