| Company | Timeline | Status | |
| Halcyon Art UK Limited Secretary • Unreported | 10 Sep 2008←13 Years→30 Sep 2021 | Active | |
Acre 1127 Limited Secretary • Unreported | 25 Apr 2005←9 Years→6 Jun 2014 | Dissolved | |
| Washington Green Etcetera Limited Secretary • Unreported | 25 Jan 2001←20 Years→30 Sep 2021 | Active | |
| Trifold Limited Director • Financial Director | 26 Oct 1999←21 Years→16 Mar 2021 | Active | |
| The Halcyon Gallery Limited Director • Financial Director | 2 Sep 1998←22 Years→16 Mar 2021 | Active | |
| Washington Green Fine Art Group Limited Director • Financial Director | 2 Sep 1998←22 Years→16 Mar 2021 | Active | |
| Halcyon Art Services Limited Secretary • Unreported | 20 Feb 1997←24 Years→30 Sep 2021 | Active | |
| Halcyon Fine Art Group Limited Secretary • Unreported | 17 Feb 1997←24 Years→30 Sep 2021 | Active | |
| Halcyon Gallery (Holdings) Limited Secretary • Unreported | 23 Feb 1996←25 Years→30 Sep 2021 | Active | |
| The Halcyon Gallery Limited Secretary • Unreported | 23 Feb 1996←25 Years→30 Sep 2021 | Active | |
