| 52 North Limited | Pinner | 2020 |
| 52 Offley Road Management Company Limited | London | 1999 |
| 52 Penywern Road Limited | London | 2026 |
| 52 Quinton Street (Freehold) Limited | London | 2013 |
| 52 Richford FE Ltd | London | 2007 |
| 52 Schubert Road Limited | Maidenhead | 2005 |
| 52 ST Michaels Road Bournemouth Ltd | Edgware | 2021 |
| 52 Tottenham Street, Fitzrovia Ltd | London | 2024 |
| 52 Tufnell Park Road (Freehold) Limited | London | 2008 |
| 52 Walt Ltd | Sheffield | 2024 |
| 52 Warrington Crescent Limited | London | 1983 |
| 52 West Road Buxton Ltd | Buxton | 2026 |
| 52 Westbourne Street Hove Limited | Hove | 2012 |
| 52 Wightman Road Management Limited | London | 2006 |
| 52-58 Pont Street RTM Company Limited | London | 2009 |
| 52-61 Byewaters Management Limited | Watford | 2003 |
| 52/54 Clifton Gardens Limited | London | 1982 |
| 52/54 Finchley Lane Limited | Manchester | 1991 |
| 52/54 London Street, Whitchurch, Management Company Limited | Whitchurch | 1999 |
| 52/54 Pembroke Road Management Company Limited | Shepton Mallet | 1984 |
| 520 Ember Ltd | Wingrave | 2025 |
| 520 Investments Ltd | London | 2022 |
| 520 Property Investment Ltd | London | 2023 |
| 525 Finchley Road (Freehold) Limited | London | 1989 |
| 525 Hertford Road Limited | Waltham Cross | 2014 |
| 525 Holdings Limited | Coedpoeth | 2023 |
| 525, Finchley Road Limited | London | 1978 |
| 526 Management Company Limited | Bristol | 2019 |
| 527 Seven Sisters Ltd | London | 2021 |
| 5278 Holdings Ltd | Edinburgh | 2024 |
| 527AR Ltd | Walsall | 2020 |
| 528 HZ Ltd | Southport | 2020 |
| 529 Holloway Road Limited | London | 2001 |
| 529 Newmarket Road Limited | Cambridge | 2020 |
| 52A Cunningham Ltd | London | 2025 |
| 52A DN9 Ltd | Birmingham | 2025 |
| 52AC Limited | Dundee | 2017 |
| 52AJ Ltd | Broughty Ferry | 2022 |
| 52B Courtyard DN9 Ltd | Birmingham | 2025 |
| 52EFM Ltd | Northampton | 2022 |
| 52HOUSE Ltd | Oxford | 2025 |
| 52PS Old Trafford Ltd | London | 2025 |
| 52WHC Limited | London | 2015 |
| 53 Abingdon Road Limited | London | 2023 |
| 53 Achilles Road Management Company Limited | London | 2015 |
| 53 Addison Road Management Company Limited | East Sussex | 1990 |
| 53 Alexandra Grove Limited | Edgware | 2015 |
| 53 Alexandra Road Freehold Company Limited | Croydon | 2019 |
| 53 Aylesford Street Limited | London | 2007 |
| 53 Barton Freehold Ltd | London | 2024 |
| 53 Carysfort Road London Ltd | London | 2019 |
| 53 Chandos Road Limited | Berkshire | 2006 |
| 53 Church Road Apartment Management Company Limited | Newtownabbey | 2005 |
| 53 Clarendon Avenue Residents Company Limited | Evesham | 2008 |
| 53 Cleaver Square Freehold Limited | Salisbury | 2006 |
| 53 Collingham Ltd | Gateshead | 2021 |
| 53 Courtfield Gardens Limited | London | 1994 |
| 53 Crown Lane Management Limited | St Albans | 2008 |
| 53 Degrees Maintenance Ltd | Nantwich | 2020 |
| 53 Degrees Management Ltd | Nantwich | 2023 |
| 53 Devonport Road Management Company Limited | London | 2004 |
| 53 Eagle Road Freehold Limited | London | 2025 |
| 53 East Dulwich Road Management Limited | | 1998 |
| 53 Fallsbrook Road Management Ltd | London | 2012 |
| 53 Farley Road RTM Company Limited | London | 2013 |
| 53 First Avenue Ltd | London | 2023 |
| 53 Fitzjohns Avenue Management Company Limited | Rickmansworth | 2000 |
| 53 French Ltd | London | 2025 |
| 53 Gipsy Hill Residents Limited | London | 2022 |
| 53 Grafton Road Limited | London | 1995 |
| 53 Graham Road SL Limited | Rugby | 2020 |
| 53 Greencroft Gardens Ltd | Bromley | 2000 |
| 53 Hartland Ltd | London | 2025 |
| 53 Havelock Street RTM Company Limited | Northampton | 2016 |
| 53 High Street Management Company Limited | Stroud | 2013 |
| 53 Hill Road Management Company Limited | Chelmsford | 2008 |
| 53 Holland Park Limited | | 2007 |
| 53 Howitt Road Management Company Limited | London | 1992 |
| 53 Lechmere Road Limited | London | 1988 |
| 53 Liddon Road Ltd | London | 2017 |
| 53 London Road Limited | Gloucester | 2026 |
| 53 London Road Management Company Limited | Wokingham | 2007 |
| 53 Lynn Ltd | London | 2018 |
| 53 Moscow Road Limited | London | 2002 |
| 53 Osborne Villas Limited | Hove | 2006 |
| 53 Parliament Hill Management Limited | London | 1976 |
| 53 Percy Park Limited | North Shields | 1987 |
| 53 Princes Street Ltd | Southport | 2011 |
| 53 Properties Limited | Bristol | 2016 |
| 53 Pyrland Road Limited | London | 1999 |
| 53 Redcliffe Square Management Company Limited | London | 2002 |
| 53 Residential Limited | Burton-On-Trent | 2016 |
| 53 Rodney Street Liverpool Limited | Merseyside | 2004 |
| 53 Rubislaw Square Ltd | Aberdeen | 2017 |
| 53 RYE Road Freehold Ltd | London | 2024 |
| 53 Silverdale Ltd | Hove | 2026 |
| 53 Skylark Ltd | London | 2014 |
| 53 Solutions Limited | London | 2009 |
| 53 Stapleton Road Limited | | 2003 |
| 53 Station Road Limited | London | 2006 |