| Company | Timeline | Status | |
| Edencrest Limited Director • Director | 27 Sep 2012←9 Years→28 Oct 2021 | Active | |
| Cullen Pulp Products Limited Director • Consultant | 27 Feb 2009←16 Years→Current | Active | |
| Robert Cullen Limited Director • Consultant | 27 Feb 2009←12 Years→14 Nov 2021 | Active | |
| Cullen Packaging Limited Director • Consultant | 17 Feb 2009←16 Years→Current | Active | |
| Hamilton Academical Football Club Limited Director • Managing Director | 30 Jun 2003←8 Years→11 Apr 2012 | Active | |
| The Clyde Football Club Cic Director • Company Director | 30 Jun 1999←2 Years 2 Months→11 Sep 2001 | Active | |
