| buuk infrastructure no 2 limited | £510.8m | £3.6b | Feb 2013 | - | Open | Director |
| gtc pipelines limited | £111.7m | £2.6b | Jun 2006 | - | Open | Director |
| inexus connections limited | - | £1.5b | Jan 2013 | - | Open | Director |
| the electricity network company limited | £111.3m | £1.4b | Jun 2006 | - | Open | Director |
| independent pipelines limited | £41.4m | £1.4b | Jan 2013 | - | Open | Director |
| buuk infrastructure no 1 limited | - | £1b | Feb 2013 | - | Open | Director |
| open fibre networks limited | £20.1m | £225.8m | Jan 2013 | - | Open | Director |
| independent power networks limited | £13.3m | £195.4m | Jan 2013 | - | Open | Director |
| independent community heating limited | £8m | £137.5m | Jan 2013 | - | Open | Director |
| buuk infrastructure issuer plc | £67.7m | £106.3m | Mar 2014 | - | Open | Director |
| power on connections ltd | £113.4m | £75.3m | Mar 2008 | - | Open | Director |
| independent water networks limited | £17.5m | £59.8m | Jan 2013 | - | Open | Director |
| quadrant pipelines limited | £767.2k | £39.5m | Jan 2013 | - | Open | Director |
| metropolitan infrastructure limited | £5.8m | £33.7m | Aug 2013 | - | Open | Director |
| open fibre networks (wholesale) limited | £27.2m | £27m | Aug 2013 | - | Open | Director |
| express utilities limited | £30.1m | £22.6m | Feb 2020 | - | Open | Director |
| independent meters limited | £3.1m | £15.7m | Jan 2013 | - | Open | Director |
| gtc utility construction limited | £28.7m | £9.3m | Jun 2007 | - | Open | Director |
| passiv capital limited | £2.8m | £8.3m | Apr 2021 | - | Open | Director |
| energy networks association limited | £17.7m | £7.1m | Apr 2011 | - | Open | Director |
| inexus group (holdings) limited | - | £1.3m | Jan 2013 | - | Open | Director |
| arto.energy limited | £815.3k | £748.1k | Apr 2021 | - | Open | Director |
| lineage investments limited | £858.2k | £491.9k | Feb 2022 | - | Open | Director |
| independent service provider limited | £710.8k | £373.8k | Aug 2013 | - | Open | Director |
| ultrastream business services limited | - | £2.4 | Apr 2020 | - | Open | Director |
