| Company | Timeline | Status | |
| CPRE Northamptonshire Director • Consultant | 1 May 2011←6 Years→25 May 2017 | Active | |
| Rathlin Energy (UK) Limited Director • Oil & Natural Gas Consultant | 21 Jan 2008←12 Years→1 Jul 2020 | Active | |
| Clean Tech Assets Limited Director • Oil And Gas Consultants | 11 May 1994←7 Months→9 Dec 1994 | Dissolved | |
| Montagu-Smith & Company Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
