| Company | Timeline | Status | |
| Haddington Trustees Limited Director • Company Director | 26 Jan 2023←2 Years 10 Months→Current | Active | |
| Cincom Systems Trustee (UK) Limited Director • Retired | 19 Aug 2020←5 Years→Current | Active | |
| Vista North America Holdings Limited Director • Director | 28 Feb 2007←3 Months→1 Jun 2007 | Dissolved | |
| Vista International Limited Director • Director | 28 Feb 2007←2 Months→3 May 2007 | Dissolved | |
| Vista Computer Services Limited Director • Director | 28 Feb 2007←2 Months→3 May 2007 | Dissolved | |
| Vista Holdings Limited Director • Director | 28 Feb 2007←2 Months→3 May 2007 | Dissolved | |
| Ingenta UK Limited Director • Director | 20 Jun 2003←3 Years→3 May 2007 | Active | |
| Catchword Limited Director • Director | 20 Jun 2003←3 Years→3 May 2007 | Dissolved | |
| Ingenta Plc Director • Director | 1 Jan 2002←5 Years→3 May 2007 | Active | |
| Phylum Forge Ltd Director • Director | 3 Jul 1991←34 Years→Current | Active | |
