| Company | Timeline | Status | |
| Compass PPM Ltd Director • Director | 31 Mar 2025←8 Months→Current | Active | |
| Faberwood Ltd Director • Director | 11 Aug 2016←9 Years→Current | Active | |
| Abacus Rail Limited Director • Director | 9 Nov 2009←16 Years→Current | Active | |
| Wysman Limited Director • Director | 19 May 2009←16 Years→Current | Active | |
| Abacus Surveying Services Limited Director • Director | 30 Sep 2008←17 Years→Current | Active | |
| Sigma Procurement Services Ltd Director • Company Director | 27 May 2008←5 Months→31 Oct 2008 | Dissolved | |
| Sigma Project Controls Ltd Director • Company Director | 23 May 2008←5 Months→31 Oct 2008 | Dissolved | |
| Sigma Project Management Services Ltd Director • Company Director | 23 May 2008←5 Months→31 Oct 2008 | Dissolved | |
| Sigma Rail Ltd Director • Company Director | 23 May 2008←5 Months→31 Oct 2008 | Dissolved | |
| Sigma Quantity Surveying Services Ltd Director • Company Director | 23 May 2008←5 Months→31 Oct 2008 | Dissolved | |
