| william grant & sons distillers limited | £406m | £3.3b | Jun 2019 | - | Open | Director |
| william grant & sons brands limited | £940.3m | £652.8m | Jun 2019 | - | Open | Director |
| william grant & sons enterprises limited | £0 | £356.5m | May 2008 | - | Open | Director |
| william grant & sons limited | £0 | £355.9m | Dec 2018 | - | Open | Director |
| william grant & sons investments limited | £0 | £268m | May 2008 | - | Open | Director |
| william grant & sons international limited | £0 | £157.2m | May 2008 | - | Open | Director |
| quality spirits international limited | £39.3m | £121.8m | Jun 2019 | - | Open | Director |
| william grant & sons uk limited | £94.4m | £49.9m | Dec 2021 | - | Open | Director |
| drambuie liqueur company ltd. (the) | £0 | £45.2m | Sep 2014 | - | Open | Director |
| william grant & sons group limited | £0 | £18.2m | Oct 2022 | - | Open | Director |
| spiritmen limited | £8.5m | £15.8m | Sep 2023 | - | Open | Director |
| william grant & sons pension trustees ltd | £0 | £8.6m | Nov 2011 | - | Open | Director |
| william grant & sons canada limited | £8m | £3.6m | Aug 2002 | - | Open | Director |
| house of hazelwood limited | £672.1k | £797.9k | May 2008 | - | Open | Director |
| william grant & sons general partner limited | £0 | £709.8k | Oct 2011 | - | Open | Director |
| william grant & sons (ame) limited | £0 | £506.6k | Jul 2015 | - | Open | Director |
| pajs services ltd | £415.8k | £316.5k | May 2020 | - | Open | Director |
| the surrey hills distilling company ltd | £185.7k | £285k | Sep 2023 | - | Open | Director |
| william grant & sons distinction limited | £0 | £159.6k | Aug 2016 | - | Open | Director |
| drambuie limited | - | £13.5k | Sep 2014 | - | Open | Director |
| standfast dominica limited | £0 | £199.8 | May 2008 | - | Open | Director |
| light spirit company limited(the) | - | £5.8 | May 2008 | - | Open | Director |
| the balvenie distillery company limited | £0 | £4 | May 2008 | - | Open | Director |
| the glenfiddich distillery company limited | £0 | £4 | May 2008 | - | Open | Director |
| william grant & sons commercial limited | - | £2.9 | Feb 2021 | - | Open | Director |
