| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASTRASEAL (HOLDINGS) LIMITED | 03729141 | 01/08/2003 | Gold |
| ASTRASEAL LIMITED | 11507112 | 08/08/2018 | Not Trading |
| GRAHAM HOLMES ASTRASEAL LIMITED | 02593809 | 01/08/2003 | Gold |
| M.S BUILDING SERVICES LIMITED | 02881118 | 15/12/1993 | Gold |
| MCMK PROPERTIES LIMITED | 06931714 | 11/06/2009 | Bronze |
| MCMULLAN MANAGEMENT SERVICES LIMITED | 03739384 | 24/03/1999 | Gold |
| THE FIRE DOOR COMPANY ASTRASEAL LIMITED | 12898787 | 23/09/2020 | Not Trading |
| WIN-DOR LIMITED | 02774768 | 15/03/1994 | Gold |
| YOURDOR LIMITED | 11383217 | 25/05/2018 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARENA 14 MANAGEMENT COMPANY LIMITED | 06205250 | 08/03/2013 | 13/11/2015 | Gold |