| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AIRVENT SMOKE CONTROL LTD | 02301079 | 21/06/2019 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COLT GROUP LIMITED | 00905918 | 17/04/2020 | 25/01/2023 | Amber |
| COLT INTERNATIONAL HOLDINGS LIMITED | 01917964 | 17/04/2020 | 31/01/2023 | Silver |
| COLT INTERNATIONAL LIMITED | 01222993 | 17/04/2020 | 25/01/2023 | Gold |
| COLT INVESTMENTS | 02647060 | 17/04/2020 | 15/11/2022 | Dissolved |
| ELLIOTT COMMERCIAL PROPERTIES (NORTHERN IRELAND) LIMITED | NI067801 | 22/01/2008 | 12/08/2009 | Dissolved |
| KINGSPAN LIGHT & AIR LIMITED | 08780558 | 21/06/2019 | 25/01/2023 | One Red Flag |
| KINGSPAN LIGHT + AIR (UK & IRELAND) LIMITED | 02940609 | 21/06/2019 | 25/01/2023 | Gold |
| TROLDTEKT LIMITED | 00257636 | 17/04/2020 | 31/12/2020 | Gold |