| Company | Timeline | Status | |
| Rail Forum Director • Director | 27 Feb 2009←8 Years→1 Nov 2017 | Active | |
| Signal House Properties Limited Director • General Manager | 8 Aug 2008←17 Years→Current | Active | |
| SH Lighting Ltd Director • Cd | 18 Apr 2008←17 Years→9 Aug 2025 | Dissolved | |
| Signal House Group Limited Director • Company Director | 4 Jun 2003←22 Years→Current | Active | |
| Collis Engineering Railway Contracts Limited Director • Co Director | 4 Jun 2003←22 Years→Current | Active | |
| Midland Railway Enterprises Plc Director • Company Director | 11 Apr 1995←3 Years→14 Apr 1998 | Active | |
| Signal House Limited Director • General Manager | 18 Sep 1991←34 Years→Current | Active | |
| Collis Engineering Limited Director • General Manager | 18 Sep 1991←34 Years→Current | Active | |
