| invitrogen holdings limited | - | £21.9b | Oct 2018 | - | Open | Director |
| matrix microscience limited | - | £20.5b | Oct 2018 | - | Open | Director |
| wildcat acquisition holdings (uk) limited | - | £11.8b | Apr 2023 | - | Open | Director |
| synexus clinical research topco limited | - | £11.1b | Mar 2023 | - | Open | Director |
| thermo fisher scientific life technologies investment uk i limited | - | £9.9b | Oct 2018 | - | Open | Director |
| life technologies limited | £1.9b | £7.6b | Oct 2018 | - | Open | Director |
| ppd international holdings (uk) ltd. | - | £5.1b | Mar 2023 | - | Open | Director |
| erie gc limited | - | £4.8b | May 2020 | - | Open | Director |
| thermo fisher scientific life technologies investment uk ii limited | - | £4.6b | Oct 2018 | - | Open | Director |
| thermo fisher scientific life technologies enterprise holding limited | - | £4.5b | Oct 2018 | - | Open | Director |
| life technologies finance limited | - | £3.8b | Oct 2018 | - | Open | Director |
| ppd international investments limited | - | £3.8b | Mar 2023 | - | Open | Director |
| thermo fisher scientific life holdings limited | - | £3.4b | Oct 2018 | - | Open | Director |
| erie uk 1 limited | - | £2.4b | Oct 2018 | - | Open | Director |
| thermo fisher scientific blade ii limited | - | £2.1b | Feb 2023 | - | Open | Director |
| thermo fisher scientific blade i limited | - | £2b | Jan 2023 | - | Open | Director |
| lambtrack limited | - | £2b | Oct 2018 | - | Open | Director |
| thermo fisher scientific blade iii limited | £904k | £1.9b | Feb 2023 | - | Open | Director |
| ppd uk holdings limited | - | £1.8b | Mar 2023 | - | Open | Director |
| patheon uk limited | £830.9m | £1.8b | Jun 2023 | - | Open | Director |
| fisher scientific uk holding company limited | - | £1.7b | Oct 2018 | - | Open | Director |
| thermo fisher scientific odyssey holdings limited | - | £1.5b | Oct 2018 | - | Open | Director |
| thermo fisher scientific blade iv limited | - | £1.5b | Feb 2023 | - | Open | Director |
| helmet securities limited | - | £1.2b | Oct 2018 | - | Open | Director |
| erie uk senior holding limited | - | £1.2b | Oct 2018 | - | Open | Director |
