| Company | Timeline | Status | |
| Midland Combustion Limited Director • Director | 1 Jun 1994←29 Years→29 Feb 2024 | Dissolved | |
| Selwood Pump Company Limited Director • Director | 1 Jun 1994←25 Years→11 Mar 2020 | Active | |
| MLTC Limited Director • Director | 31 Mar 1992←28 Years→6 May 2020 | Dissolved | |
| G.M. Treble Limited Director • Company Director | 19 Mar 1992←20 Years→2 Aug 2012 | Active | |
| Treble Pumping Services Limited Director • Company Director | 16 Jan 1992←20 Years→2 Aug 2012 | Active | |
| Selwood Pump Holding Limited Director • Director | 31 Mar 1991←28 Years→11 Mar 2020 | Active | |
