| road management services (darrington) limited | £51.2m | £603.2m | Jun 2016 | - | Open | Director |
| road management services (darrington) holdings limited | £51.2m | £547.4m | Jun 2016 | - | Open | Director |
| semperian ppp investment partners no.2 limited | £7.1m | £546.6m | Oct 2022 | - | Open | Director |
| semperian joint ventures limited | £396.4k | £346.1m | Oct 2022 | - | Open | Director |
| uclh investors limited | £53.9m | £234.5m | Jul 2019 | - | Open | Director |
| semperian investments limited | - | £103.8m | Oct 2022 | - | Open | Director |
| health management (uclh) holdings limited | £15.5m | £74.7m | Jul 2019 | - | Open | Director |
| health management (uclh) limited | £53.9m | £72.2m | Jul 2019 | - | Open | Director |
| semperian no.21 limited | - | £56.7m | Jan 2023 | - | Open | Director |
| wadlow energy limited | £8.3m | £47.1m | Apr 2024 | - | Open | Director |
| kirklees schools services limited | £19.5m | £38.4m | Feb 2014 | - | Open | Director |
| albion healthcare (oxford) limited | £6.7m | £30.5m | Mar 2017 | - | Open | Director |
| the hospital company (swindon & marlborough) limited | £35.1m | £29.8m | May 2013 | - | Open | Director |
| semperian business support limited | £15.5m | £27.6m | Sep 2024 | - | Open | Director |
| gh gravesham limited | £4.5m | £25.4m | Jun 2014 | - | Open | Director |
| semperian ppp investment partners limited | £8.8m | £23.3m | Oct 2022 | - | Open | Director |
| first priorities ppp health services limited | £10.6m | £22.4m | May 2016 | - | Open | Director |
| defence training services limited | £17.5m | £20.8m | May 2023 | - | Open | Director |
| imc st.david's ltd | £3.3m | £15.8m | Sep 2013 | - | Open | Director |
| gh stone house limited | £1.7m | £11.6m | Jun 2014 | - | Open | Director |
| semperian ppp investment partners group limited | £306.7k | £9.5m | Nov 2021 | - | Open | Director |
| healthcare providers (gloucester) limited | £5.5m | £9m | Jun 2016 | - | Open | Director |
| gloucester healthcare partnership limited | £5.5m | £9m | Jun 2016 | - | Open | Director |
| community health facilities (oxford) limited | £2.8m | £6.7m | Feb 2014 | - | Open | Director |
| semperian infrastructure group limited | - | £6.6m | Sep 2024 | - | Open | Director |
