| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DERWENT PARTNERSHIPS (LONDON) LIMITED | 06198018 | 23/02/2011 | Dissolved |
| HORIZON (GP) LIMITED | SC493523 | 22/09/2015 | Silver |
| HORIZON HOUSING REIT PLC | 11283973 | 22/05/2019 | Silver |
| HORIZON INFRASTRUCTURE PARTNERSHIP LIMITED | 09558425 | 26/01/2016 | Silver |
| HOUSING ASSETS LAND AND ORGANISATION (HALO) LIMITED | 08376916 | 28/01/2013 | Gold |
| PROSPERITY VITA LIMITED | 14624295 | 04/03/2024 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ANGLERS LANE MANAGEMENT LIMITED | 06008022 | 29/07/2011 | 28/02/2013 | Dissolved |
| AVENUE LETTINGS AND MANAGEMENT LIMITED | 04932878 | 06/05/2013 | 22/05/2017 | Dissolved |
| BRAYFORD POOL LINCOLN LIMITED | 06442520 | 25/04/2008 | 28/02/2013 | Dissolved |
| DERWENT PARTNERSHIPS LTD | 03417031 | 29/05/2008 | 28/02/2013 | Dissolved |
| PELHAM HOMES LIMITED | 05184359 | 04/11/2015 | 31/07/2021 | Silver |
| WAKLEY RESIDENCES LIMITED | 06488489 | 28/07/2009 | 26/02/2013 | Dissolved |