| 555 Properties Leicester Limited | Leicester | 2025 |
| 555 Properties Ltd | Walsall | 2025 |
| 555 Property Limited | London | 2024 |
| 555 Radlett Limited | Billericay | 2021 |
| 555 Ventures Ltd | Walton-On-Thames | 2026 |
| 5551 Ltd | Halifax | 2022 |
| 556 Fishponds Road Management Company Limited | Bristol | 1989 |
| 557 Evesham Ltd | Redditch | 2025 |
| 558 Fishponds Road Management (Bristol) Ltd | Bristol | 1996 |
| 5589 Limited | Harrogate | 2021 |
| 559 London Road Westcliff Ltd | Westcliff On Sea | 2019 |
| 559 London SUB H Limited | Westcliff On Sea | 2021 |
| 559 London SUB Ltd | Westcliff On Sea | 2020 |
| 559B Ltd | Manchester | 2019 |
| 55A Ferndale Ltd | London | 2025 |
| 55A Filsham Road Limited | St Leonards-On-Sea | 2024 |
| 55K Developments Ltd | Bristol | 2009 |
| 55TRINITYSQUAREMARGATE Ltd | Salford | 2022 |
| 55WD Limited | Leicester | 2025 |
| 56 & 5TH Street Ltd | Sunningdale | 2017 |
| 56 58 Maddox ST RTM Company Limited | London | 2026 |
| 56 B Street Limited | London | 2013 |
| 56 Barton Court Residents Limited | New Milton | 2011 |
| 56 Belgrave Road Ltd | Ilford | 2017 |
| 56 Blackheath Park Limited | | 1987 |
| 56 Blandford ST Lease Ltd | London | 2024 |
| 56 Bond Ltd | London | 2023 |
| 56 Burnthwaite Road Residents Company Limited | | 1998 |
| 56 Cambridge Ltd | Borehamwood | 2010 |
| 56 Cavell Street Management Company Limited | London | 1987 |
| 56 Colvestone Crescent Limited | | 1998 |
| 56 Dagnall Park (Freehold) Limited | London | 2020 |
| 56 Darnley Road Limited | London | 2009 |
| 56 Dulwich Road (Management Co) Limited | | 1986 |
| 56 East Street Ltd | Chichester | 2019 |
| 56 Eaton Place (Flat 1) Ltd | Stockport | 2006 |
| 56 Elder Road Limited | London | 2024 |
| 56 Elgin Avenue Management Limited | | 1997 |
| 56 Estates Limited | London | 2022 |
| 56 Eton Avenue Freehold Limited | | 1995 |
| 56 Eton Avenue Garages Limited | London | 2003 |
| 56 Fulwood ROW Ltd | Preston | 2024 |
| 56 George Street Limited | Scarborough | 2014 |
| 56 Gibson Square Management Limited | | 1986 |
| 56 Green Limited | Harrow | 2016 |
| 56 Grosvenor Street Limited | London | 2024 |
| 56 High Street Ltd | Hassocks | 2015 |
| 56 Ickburgh Road (Management) Limited | London | 2005 |
| 56 Investments Limited | Birmingham | 2024 |
| 56 Jenner Road Management Limited | London | 2015 |
| 56 Lambton Road Freehold Ltd | London | 2022 |
| 56 Ledbury Road Limited | London | 2017 |
| 56 Limes Grove (Freehold) Company Limited | London | 2011 |
| 56 Management Services Limited | London | 2025 |
| 56 Mile Investments Ltd | Wolverhampton | 2019 |
| 56 Mill Street Bideford Limited | Bideford | 2019 |
| 56 Mirabel Road Management Limited | London | 2008 |
| 56 Mulgrave Road Freeholders Limited | Sutton | 2001 |
| 56 North Developments Ltd | Edinburgh | 2026 |
| 56 North Property Ltd | Edinburgh | 2026 |
| 56 Okehampton Management Company Ltd | London | 2025 |
| 56 Properties Limited | Harrow | 2022 |
| 56 Queen's Road Residents Limited | London | 2005 |
| 56 Romola Road, London, SE24 9AZ RTM Company Limited | London | 2012 |
| 56 Salford Road Limited | London | 2010 |
| 56 Sandmere Road Management Limited | | 2004 |
| 56 Shanklin Road Limited | East Sussex | 2000 |
| 56 Sheep Street Limited | Northampton | 2021 |
| 56 Sherwood Invest Ltd | London | 2025 |
| 56 Southgate Road Management Company Limited | Pontefract | 2012 |
| 56 SQ Ltd | Birmingham | 2026 |
| 56 ST. Andrews Road Southsea Limited | Southsea | 2002 |
| 56 Street Ltd | Sunningdale | 2012 |
| 56 Sutherland Place Limited | London | 2015 |
| 56 the Chase (NO 2) Ltd | Harrow | 2006 |
| 56 the Chase Ltd | London | 2025 |
| 56 Tollington Road Limited | Brighton | 2002 |
| 56 Tomlins Grove (Freehold) Limited | London | 2006 |
| 56 Tournay Road Management Limited | Abingdon | 2008 |
| 56 TR Limited | London | 2018 |
| 56 Trinity SQ Limited | Hemel | 2025 |
| 56 Upper Green Street Ltd | High Wycombe | 2018 |
| 56 Ventures Ltd | Bolton | 2025 |
| 56 Victoria Road Limited | | 2004 |
| 56 Vincent Square Investments Limited | London | 2006 |
| 56 Wandsworth Common North Side Limited | London | 2003 |
| 56 Warrington Crescent Limited | London | 1984 |
| 56 Waterloo Road Ltd | Radstock | 2023 |
| 56 Wellington West Limited | London | 2024 |
| 56 Westbourne Terrace Freeholders Association Limited | Kington | 1990 |
| 56 Whitbread Road Limited | London | 2009 |
| 56 Wimbledon Hill Limited | Caterham | 2026 |
| 56 Woolmead AV Ltd | London | 2025 |
| 56-58 L1 5FE Ltd | Liverpool | 2020 |
| 56-58 Onslow Gardens Limited | Potters Bar | 2004 |
| 56-58 West Street Bridport Management Limited | Bridport | 2024 |
| 56-62 Coulsons Road Whitchurch Management Company Limited | Bristol | 2009 |
| 56.4 North Property Development and Maintenance Limited | Glenrothes | 2022 |
| 56/58 Lambert Road (Freehold) Limited | London | 2017 |
| 564 Cowbridge Road East Limited | Cardiff | 2013 |