| newlands (elgin) holdings limited | £670.8m | £1.1b | Mar 2017 | - | Open | Director |
| robertson group (holdings) limited | £670.9m | £607m | Mar 2009 | - | Open | Director |
| robertson group limited | £643.8m | £579.7m | Feb 1989 | - | Open | Director |
| robertson residential group limited | £157.2m | £212m | Feb 2018 | - | Open | Director |
| robertson construction group limited | £489.6m | £193.6m | Sep 2008 | - | Open | Director |
| robertson facilities management limited | £143.2m | £91.5m | May 1998 | - | Open | Director |
| robertson homes limited | £112.9m | £63.8m | Mar 1999 | - | Open | Director |
| robertson ce limited | £138.3m | £61.4m | Jun 2003 | - | Open | Director |
| robertson construction central scotland limited | £78m | £33.3m | Aug 2007 | - | Open | Director |
| robertson construction tayside limited | £59.3m | £28.7m | Nov 2005 | - | Open | Director |
| robertson construction northern limited | £67.2m | £26.5m | May 2003 | - | Open | Director |
| south shore developments limited | £1.7m | £18.2m | Sep 2004 | - | Open | Director |
| robertson health (new craigs) limited | £4.3m | £14.1m | Mar 1999 | - | Open | Director |
| robertson capital projects limited | £4m | £13m | Jan 2002 | - | Open | Director |
| robertson construction eastern limited | £18.1m | £10.8m | Jun 2003 | - | Open | Director |
| robertson capital projects hub investments limited | - | £7.4m | Dec 2011 | - | Open | Director |
| robertson timber engineering limited | £12.4m | £6.7m | Jul 1996 | - | Open | Director |
| robertson living limited | £20.8m | £6.7m | May 2017 | - | Open | Director |
| robertson capital projects investments 3 limited | - | £3.1m | Mar 2017 | - | Open | Director |
| robertson residential managed properties limited | £96k | £2m | Jul 1996 | - | Open | Director |
| robertson health (orkney) limited | £2.8m | £1.8m | Mar 2017 | - | Open | Director |
| robertson property limited | £4.3m | £760.3k | Oct 1989 | - | Open | Director |
| robertson health (new craigs) holdings limited | - | £270k | Mar 1999 | - | Open | Director |
| robertson capital projects investments 4 limited | - | £148.3k | Mar 2018 | - | Open | Director |
| cobalt project investments (hull bsf) limited | - | £2.2k | Jun 2011 | - | Open | Director |
