| j. & j. denholm limited | £428.8m | £540.4m | Jun 2017 | - | Open | Director |
| denholm good logistics limited | £131.5m | £119.5m | Aug 2021 | - | Open | Director |
| denholm shipping company limited | - | £82.9m | Jun 2015 | - | Open | Director |
| denholm global logistics limited | £83.1m | £74.2m | Jan 2024 | - | Open | Director |
| international transport intermediaries club limited | £22m | £59.7m | Sep 2022 | - | Open | Director |
| mountpark shipping company limited | £9.7m | £49.5m | Apr 2014 | - | Open | Director |
| denholm seafoods limited | £50.9m | £48.3m | Sep 2013 | - | Open | Director |
| denholm logistics group limited | - | £30.3m | May 2019 | - | Open | Director |
| denholm industrial group limited | £859.2k | £29.8m | Apr 2016 | - | Open | Director |
| denholm seafoods group limited | - | £19.3m | Nov 2018 | - | Open | Director |
| the united kingdom freight demurrage and defence association limited | £13.3m | £10.1m | Jul 2019 | - | Open | Director |
| denholm port services limited | £7.8m | £9.9m | Nov 2018 | - | Open | Director |
| denholm fishselling limited | £10.8m | £8.7m | Sep 2013 | - | Open | Director |
| denholm brown brothers & company limited | - | £2.6m | Dec 2020 | - | Open | Director |
| denholm coates & co. limited | £1.3m | £2.3m | Jun 2016 | - | Open | Director |
| access lifting pulling & safety limited | £1.3m | £1.4m | Jul 2022 | - | Open | Director |
| the denholm line steamers limited | - | £705.2k | Feb 2016 | - | Open | Director |
| denholm maritime services limited | - | £6.8k | Dec 2020 | - | Open | Director |
| john good logistics limited | - | £1.8 | Jun 2022 | - | Open | Director |
| denholm access limited | - | - | Aug 2024 | - | Open | Director |
| woodside 18 limited | - | - | Aug 2023 | - | Open | Director |
| denholm specialist access limited | - | - | Aug 2024 | - | Open | Director |
| denholm power limited | - | - | Aug 2024 | - | Open | Director |
| denholm renewables limited | - | - | Sep 2024 | - | Open | Director |
| denholm marine limited | - | - | Sep 2024 | - | Open | Director |
