| Company | Timeline | Status | |
| KSR Publishing Ltd Director • Director | 28 Oct 2022←2 Years 12 Months→Current | Active | |
| KSR Evidence Ltd Director • Director | 28 Oct 2022←2 Years 12 Months→Current | Active | |
| Kleijnen Systematic Reviews Holdings Ltd Director • Director | 28 Oct 2022←2 Years 12 Months→Current | Active | |
| Kleijnen Systematic Reviews Limited Director • Office Manager | 1 May 2017←8 Years→Current | Active | |
| Kleijnen Systematic Reviews Limited Director • Office Manager | 1 May 2017←7 Years→20 Feb 2025 | Active | |
