| Company | Timeline | Status | |
| Seven Kings Brewery Ltd Director • Acountant  | 24 Sep 2018←7 Years→Current  | Active  | |
| McCallum Associates Limited Director • Accountant  | 27 Aug 2013←12 Years→Current  | Active  | |
| McCallum & Co LLP Designated LLP Member • Unreported  | 16 Dec 2011←13 Years→Current  | Active  | |
| Wymet Secretarial Services Limited Director • Unreported  | 3 Feb 2009←16 Years→Current  | Active  | |
| Wymet Secretarial Services Limited Secretary • Unreported  | 3 Feb 2009←16 Years→Current  | Active  | |
| Jim Fraser & Associates Limited Secretary • Unreported  | 17 Dec 2008←2 Months→4 Mar 2009  | Dissolved  | |
| Brewpharm Limited Secretary • Unreported  | 15 Dec 2008←2 Months→4 Mar 2009  | Dissolved  | |
| Butterfly Personnel Limited Secretary • Unreported  | 31 Oct 2008←4 Months→4 Mar 2009  | Active  | |
| Unichip Europe Limited Secretary • Unreported  | 16 May 2008←1 Year 9 Months→28 Feb 2010  | Dissolved  | |
| Unichip Europe Limited Director • Accountant  | 16 May 2008←1 Year 9 Months→28 Feb 2010  | Dissolved  | |
