| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| & Albert Trading Co Ltd | 04343533 | 25/04/2002 | Dissolved |
| 27 Brackenbury Road Management Ltd | 04706419 | 21/03/2003 | Dissolved |
| 52 QUEEN'S GATE TERRACE MANAGEMENT LIMITED | 03079816 | 14/04/2006 | Amber |
| ARKMANOR LIMITED | 05769431 | 05/04/2006 | Dissolved |
| BUTTERFLY WORLD MANAGEMENT LIMITED | 05438860 | 28/04/2005 | Dissolved |
| Charterhouse Standard Developments Ltd | 03262488 | 11/10/1996 | Dissolved |
| Daleflag Ltd | 04506078 | 30/08/2002 | Dissolved |
| GREENMANTLE ESTATES LIMITED | 06220057 | 19/04/2007 | Silver |
| LANSDOWNE PROPERTY HOLDINGS LIMITED | 06219943 | 19/04/2007 | Dissolved |
| LEPIDOPTERA ESTATES LIMITED | 04252286 | 13/07/2001 | Dissolved |
| MERLEWOOD ESTATES LIMITED | 01704435 | 20/03/1992 | Silver |
| MONARCH FUNDING LIMITED | 14070486 | 26/04/2022 | Not Trading |
| Maida Vale Homes Ltd | 01774370 | 26/12/1992 | Dissolved |
| PLANT LIFE GARDENS LIMITED | 06241437 | 09/05/2007 | Dissolved |
| Portland House Properties Ltd | 02651778 | 07/10/1992 | Dissolved |
| Portland House Properties Ltd | 02651778 | 07/10/1992 | Dissolved |
| Questview Ltd | 02750894 | 25/09/1992 | Dissolved |
| RIVERVIEW ESTATES LIMITED | 01922246 | 24/03/1992 | Dissolved |
| ROUNDRIVER LIMITED | 00891713 | 20/03/1992 | Silver |
| Ryewater Management Limited | 02686199 | 11/02/1992 | Dissolved |
| SILVERLOCK LIMITED | 09716650 | 04/08/2015 | Silver |
| SINCLAIR HOUSE PROPERTIES LIMITED | 03581368 | 15/06/1998 | Dissolved |
| STRATFORD-UPON-AVON BUTTERFLY FARM LIMITED | 01859632 | 22/05/1992 | Silver |
| TRAITBOND LIMITED | 01556869 | 20/03/1992 | Silver |
| The Portland House Group Ltd | 03715266 | 18/02/1999 | Dissolved |
| Tranmere Estates Ltd | 02145463 | 06/12/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 19 HENRIETTA STREET BATH MANAGEMENT COMPANY LIMITED | 02314371 | 06/09/2001 | 30/09/2002 | Gold |
| ANGUSTIFOLIA ESTATE LIMITED | 13003980 | 09/11/2020 | 19/04/2024 | Not Trading |
| AVELEY HOUSE MANAGEMENT LIMITED | 02455289 | 11/11/1993 | 22/01/1999 | Bronze |
| BUTTERFLY WORLD PROJECT (HOLDINGS) LIMITED | 07134897 | 25/01/2010 | 30/01/2012 | Gold |
| BUTTERFLY WORLD PROJECT LIMITED | 06498008 | 08/02/2008 | 30/01/2012 | One Red Flag |
| EDINBURGH BUTTERFLY FARM LIMITED | SC086856 | 22/11/1988 | 31/12/1989 | Dissolved |
| EDINBURGH BUTTERFLY FARM LIMITED | SC086856 | 22/11/1988 | 31/12/1989 | Dissolved |
| LUDBOURNE HALL MANAGEMENT COMPANY LIMITED | 11632586 | 19/10/2018 | 28/06/2024 | Not Trading |
| Mileplace Ltd | 04874136 | 16/09/2003 | 31/10/2004 | Dissolved |
| PORTLAND HOUSE CONSTRUCTION LIMITED | 02714759 | 05/04/1994 | 04/03/2005 | One Red Flag |
| PORTLAND HOUSE CONSTRUCTION LIMITED | 02714759 | 05/04/1994 | 04/02/2005 | One Red Flag |
| PORTLAND HOUSE HOLDINGS LIMITED | 02421236 | 05/11/1992 | 14/03/2007 | Amber |
| PORTLAND HOUSE HOLDINGS LIMITED | 02421236 | 05/11/1992 | 14/03/2007 | Amber |
| Pom-Pom Designs Ltd | 03092400 | 16/08/1996 | 27/10/1998 | Dissolved |
| ST. ANDREW'S PROPERTY HOLDINGS LIMITED | 04040810 | 01/06/2003 | 14/03/2007 | Dissolved |
| THE PORTLAND HOUSE GROUP LIMITED | 06041418 | 25/01/2007 | 21/11/2018 | Gold |
| THE PORTLAND HOUSE GROUP LIMITED | 06041418 | 25/01/2007 | 21/11/2018 | Gold |
| URANIA SECURITIES LIMITED | 01027495 | 25/09/2003 | 15/10/2004 | Dissolved |
| Y WERDDON MANAGEMENT LIMITED | 05837602 | 01/10/2010 | 01/10/2022 | Not Trading |