| james walker (leith) limited | £103.8m | £257.9m | Jul 2013 | - | Open | Director |
| sundial dundas (corstorphine) limited | £57.7m | £68.6m | Sep 2018 | - | Open | Director |
| dundas estates & development co. limited | £20.7m | £52.4m | Aug 1991 | - | Open | Director |
| woodbridge timber limited | £39.4m | £26.1m | Jun 1990 | - | Open | Director |
| highbury healthcare limited | £5.7m | £13.3m | Mar 2004 | - | Open | Director |
| walker timber engineering limited | £19m | £11.6m | Feb 2001 | - | Open | Director |
| walker healthcare limited | £388.5k | £11.4m | Sep 2006 | - | Open | Director |
| dundas building co. ltd. | £22.5m | £10.1m | Dec 1990 | - | Open | Director |
| the meadows stockport limited | £1.5m | £7.9m | Aug 1998 | - | Open | Director |
| cramond residence limited | £1.9m | £6.1m | Nov 2015 | - | Open | Director |
| ellen's glen house limited | £1.1m | £5.4m | Jan 1999 | - | Open | Director |
| ferryfield house limited | £1.1m | £4.4m | Nov 1995 | - | Open | Director |
| walker residential properties ltd | £24.9k | £3m | May 1993 | - | Open | Director |
| walker commercial properties ltd | £252.7k | £2.7m | Jan 1999 | - | Open | Director |
| walker facilities management limited | £5.8m | £2.5m | Sep 2004 | - | Open | Director |
| walker timber group limited | £309.8k | £2.5m | Sep 2006 | - | Open | Director |
| highbury healthcare (holdings) limited | - | £519.8k | Mar 2004 | - | Open | Director |
| walker healthcare (cramond) limited | - | £477k | Mar 2018 | - | Open | Director |
| wtg treatment limited | £388.9k | £195.3k | Mar 2013 | - | Open | Director |
| guildway limited | - | £5.2 | Mar 2013 | - | Open | Director |
| dundas estates (bishopton) ltd | - | - | Apr 2024 | - | Open | Director |
| dundas estates (shawfair) ltd | - | - | Apr 2024 | - | Open | Director |
| dundas estates (haddington) ltd | - | - | Apr 2024 | - | Open | Director |
