| Company | Timeline | Status | |
| Columbia Executive Coaching Limited Director • Unreported | 25 Mar 2015←10 Years→Current | Active | |
Columbia Advisor LLP Designated LLP Member • Unreported | 25 Jan 2013←2 Years 9 Months→27 Oct 2015 | Dissolved | |
| Columbia Partners Limited Director • Director | 25 Jan 2013←3 Years→9 Aug 2016 | Dissolved | |
