| Company | Timeline | Status | |
| Care Market Research Ltd Director • Director | 19 Jan 2023←3 Years→Current | Active | |
| Patient Intelligence Panel Ltd Director • Unreported | 9 Sep 2009←16 Years→Current | Active | |
Van Dongen Research Limited Director • Business Manager | 26 Sep 2008←11 Years→21 Jan 2020 | Dissolved | |
