| inizio holdings limited | £4.1m | £1.5b | May 2020 | - | Open | Director |
| huntsworth healthcare group limited | £2.8m | £500.6m | Mar 2012 | - | Open | Director |
| accordience group limited | - | £483.2m | Jan 2012 | - | Open | Director |
| nucleus holdings limited | £68.7m | £112.4m | Dec 2020 | - | Open | Director |
| huntsworth health limited | £32.5m | £69.6m | Mar 2012 | - | Open | Director |
| the creative engagement group ltd | £69.4m | £52.8m | Jul 2017 | - | Open | Director |
| huntsworth investments limited | - | £34.6m | Jan 2012 | - | Open | Director |
| articulatescience limited | - | £26.1m | Feb 2021 | - | Open | Director |
| cormis partnership limited | £7.7m | £20.2m | Jun 2020 | - | Open | Director |
| health interactions limited | - | £19.6m | Feb 2021 | - | Open | Director |
| grayling communications limited | £24.4m | £15.6m | Mar 2012 | - | Open | Director |
| citigate communications group limited | - | £15m | Jan 2012 | - | Open | Director |
| medicalexpressions limited | £152k | £13.2m | Feb 2021 | - | Open | Director |
| the red consultancy limited | £22.7m | £13m | Mar 2012 | - | Open | Director |
| wrg group limited | - | £11.2m | Jul 2017 | - | Open | Director |
| clinicalthinking limited | - | £11m | Feb 2021 | - | Open | Director |
| scimentum limited | - | £10.2m | Feb 2021 | - | Open | Director |
| tonic life communications limited | £3.4m | £8.2m | Mar 2012 | - | Open | Director |
| just communicate limited | - | £8m | Jul 2017 | - | Open | Director |
| international medical press limited | £2.2m | £6.5m | Feb 2021 | - | Open | Director |
| citigate dewe rogerson limited | £7.3m | £6.2m | Mar 2012 | - | Open | Director |
| cognito medical communications limited | - | £5.7m | Feb 2021 | - | Open | Director |
| synaptikdigital limited | - | £5.4m | Feb 2021 | - | Open | Director |
| the moment content company limited | - | £2.9m | Jul 2017 | - | Open | Director |
| scientificpathways limited | - | £1.2m | Feb 2021 | - | Open | Director |
