| Company | Timeline | Status | |
| Sigma Property Investments (Yorkshire) Ltd Director • Director | 6 Sep 2021←4 Years→Current | Active | |
| Sigma Plant Hire Ltd Director • Director | 1 Apr 2021←4 Years→Current | Active | |
| Sigma Utilities Ltd Director • Electrical Cable Joiner | 26 May 2017←8 Years→Current | Active | |
