| Company | Timeline | Status | |
| MLM Holdings Limited Director • Unreported | 3 May 2019←6 Years→Current | Active | |
| Fluid Structural Engineers & Technical Designers Limited Director • Unreported | 3 May 2019←6 Years→Current | Active | |
| Sweco Consulting Limited Director • Unreported | 3 May 2019←6 Years→Current | Active | |
| Sweco Consulting Engineers Limited Director • Unreported | 3 May 2019←6 Years→Current | Active | |
| Roger Preston Group Limited Director • Unreported | 9 Sep 2016←9 Years→Current | Active | |
| Roger Preston & Partners Limited Director • Unreported | 9 Sep 2016←9 Years→Current | Active | |
| Sweco UK Limited Director • Unreported | 31 Aug 2016←9 Years→Current | Active | |
| Sweco Services UK Limited Director • Unreported | 31 Aug 2016←9 Years→Current | Active | |
| Sweco UK Holding Limited Director • Unreported | 3 Aug 2016←9 Years→Current | Active | |
