| Company | Timeline | Status | |
| John Olsen Consulting Ltd Director • Company Director | 16 May 2017←6 Years→16 Jan 2024 | Dissolved | |
| Engine Partners UK LLP Non-designated LLP Member • Unreported | 1 Aug 2011←6 Years→31 Dec 2017 | Active | |
| Halstead (Educational Trust) Limited Director • Public Relations Consultant | 1 Aug 2004←14 Years→25 Jun 2019 | Dissolved | |
Hogarth Partnership Limited Director • Pr Consultant | 1 Apr 1997←14 Years→1 Aug 2011 | Dissolved | |
