| Company | Timeline | Status | |
| Queen's Hall (Edinburgh) Limited (The) Director • Management Consultant | 31 Jul 2015←1 Year 9 Months→19 May 2017 | Active | |
| Scotregen Limited Director • Consultant | 24 May 2012←10 Years→25 May 2022 | Active | |
Enlighten: David Hume Consulting Ltd Director • Director | 31 Dec 2011←7 Years→9 Oct 2019 | Dissolved | |
