| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| D HOWARD SERVICES LIMITED | 08560605 | 12/06/2013 | Dissolved |
| Dlp Publications Ltd | 05254796 | 08/10/2004 | Dissolved |
| MANSE MEDIA LIMITED | 06851489 | 18/03/2009 | Dissolved |
| P.L.D. Publications Ltd | 05253102 | 07/10/2004 | Dissolved |
| Portland Communications Ltd | 02387222 | 22/05/1992 | Dissolved |
| Portland Europe Ltd | 02594338 | 22/03/1992 | Dissolved |
| Portland House Mailing Ltd | 05759265 | 28/03/2006 | Dissolved |
| Specifier Business Media Ltd | 04125148 | 14/12/2000 | Dissolved |
| Specifier Business Media Ltd | 03797550 | 30/06/1999 | Dissolved |
| Trustmore Ltd | 03105918 | 25/09/1995 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CATALOGUE SHOWCASE LIMITED | 08560823 | 12/06/2013 | 25/10/2020 | Dissolved |
| Portland House Mailing Ltd | 05759265 | 28/03/2006 | 28/03/2006 | Dissolved |
| STRATA CONSTRUCTION CONSULTING UK LIMITED | 07268605 | 01/06/2014 | 31/05/2017 | Silver |