| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 181 SHEEN ROAD FREEHOLD LIMITED | 06377786 | 21/09/2007 | Dissolved |
| CHURCH ROAD (RICHMOND) LIMITED | 07864382 | 29/11/2011 | Dissolved |
| DRAYTON KIRK LTD | 10056829 | 11/03/2016 | One Red Flag |
| KIRK HOUSE MANAGEMENT LTD | 12518605 | 16/03/2020 | Dissolved |
| QUAD 100 LTD | 09134153 | 16/07/2014 | Dissolved |
| QUAD 101 LTD | 09467809 | 03/03/2015 | Bronze |
| QUAD 300 LTD | 10572998 | 19/01/2017 | Dissolved |
| QUAD 500 LIMITED | 15107205 | 31/08/2023 | Bronze |
| QUAD ADAPT LIMITED | 06377746 | 21/09/2007 | One Red Flag |
| QUAD ARCHITECTS LIMITED | 06221401 | 05/02/2008 | Bronze |
| QUAD ARCHITECTS LIMITED | 06221401 | 23/07/2007 | Bronze |
| QUAD HOLDINGS LIMITED | 06219395 | 19/06/2007 | Dissolved |
| QUAD PROJECTS (CONSTRUCTION) LIMITED | 05648685 | 08/12/2005 | Dissolved |
| QUAD PROJECTS (CRANMER ROAD) HAMPTON LIMITED | 05953783 | 03/10/2006 | Dissolved |
| QUAD PROJECTS (NOTTING HILL) LIMITED | 05591669 | 13/10/2005 | Bronze |
| QUAD PROJECTS (RICHMOND) LIMITED | 05591719 | 13/10/2005 | Dissolved |
| QUAD PROJECTS (RIVERMEAD) LIMITED | 05694199 | 26/07/2007 | Insolvent |
| QUAD PROJECTS (STRAWBERRY HILL) LIMITED | 05609325 | 01/11/2005 | Dissolved |
| Qp (Richmond) Ltd | 05598789 | 20/10/2005 | Dissolved |
| Quad Construction (Rivermead) Ltd | 06362659 | 06/09/2007 | Dissolved |
| Quad Construction (Waldegrave) Ltd | 06339696 | 10/08/2007 | Dissolved |
| Quad Investments (London) Llp | OC323450 | 25/10/2006 | Dissolved |
| Quad Projects (Riverdale) Ltd | 04031623 | 06/07/2000 | Dissolved |
| THE ORMONDS HAMPTON LIMITED | 07587895 | 01/04/2011 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 181 SHEEN ROAD LIMITED | 06259119 | 24/05/2007 | 28/10/2009 | Gold |
| 283 WALDEGRAVE ROAD MANAGEMENT LTD | 06696774 | 15/09/2008 | 14/06/2010 | Silver |
| CRANMER MANAGEMENT LIMITED | 07159968 | 17/02/2010 | 13/01/2012 | Not Trading |
| HEATH HOUSE DEVELOPMENTS LIMITED | 06592461 | 02/06/2009 | 06/10/2009 | Dissolved |
| INK BUILDING MANAGEMENT COMPANY LIMITED | 06765540 | 04/12/2008 | 01/05/2011 | Not Trading |
| QUAD PROJECTS (MUNSTER ROAD) LIMITED | 06213441 | 16/04/2007 | 22/09/2009 | Dissolved |