| Company | Timeline | Status | |
| Siena Accounting Ltd Director • Investment Manager | 22 Oct 2025←9 Days→Current | Active | |
| Bridle Lane (Estates) Limited Director • Investment Manager | 10 Feb 2016←2 Years 5 Months→15 Jul 2018 | Active | |
| Vantage Infrastructure (UK) Limited Director • Director | 21 Feb 2011←7 Months→12 Oct 2011 | Active | |
| JLHC1 Limited Director • Director | 7 Jan 2010←8 Days→15 Jan 2010 | Dissolved | |
| Semperian Health Projects Limited Director • Company Director | 30 Jun 2008←6 Months→31 Dec 2008 | Active | |
| Semperian Capital Management Limited Director • Company Director | 13 Mar 2008←9 Months→31 Dec 2008 | Active | |
| Semperian Infrastructure Portfolio Limited Director • Company Director | 7 Aug 2007←1 Year 4 Months→31 Dec 2008 | Active | |
| Semperian PPP Investment Partners GP Limited Director • Company Director | 7 Aug 2007←1 Year 4 Months→31 Dec 2008 | Active | |
| Semperian PPP Investment Partners No.2 Limited Director • Company Director | 7 Aug 2007←1 Year 4 Months→31 Dec 2008 | Active | |
