| Company | Timeline | Status | |
| Ian Colvin Consulting Ltd Director • Researcher | 20 Aug 2022←3 Years→Current | Active | |
| Untold Histories Travel Ltd Director • Researcher & Lecturer | 29 Jan 2021←4 Years→Current | Active | |
| Untold Histories Travel Ltd Director • Researcher & Lecturer | 29 Jan 2021←4 Years→29 Jan 2025 | Active | |
Andrew Colvin Photography Limited Director • Researcher (higher Education) | 22 Apr 2013←5 Years→31 Jul 2018 | Dissolved | |
| Joint Colleges Nursery (Cambridge) Limited(The) Director • Research Student | 8 Mar 2004←1 Year 4 Months→30 Jul 2005 | Active | |
