| 20 and 22 Earls Court Square Limited | London | 2003 |
| 20 Anerley Park Limited | Bromley | 2004 |
| 20 Apsley Road Management Limited | Bristol | 2005 |
| 20 Aristotle Road Ltd | Eastbourne | 2014 |
| 20 Arundel Street Management Company Limited | Brighton | 2011 |
| 20 Ashgrove Road Management Company Limited | Bristol | 1982 |
| 20 Atlingworth Street Brighton Limited | Brighton | 2002 |
| 20 Aubert Park (Freehold) Limited | London | 2012 |
| 20 Aylestone Hill Residents Limited | Hereford | 1999 |
| 20 Barnard Gardens Freehold Management Limited | London | 2018 |
| 20 Barnsbury Park Management Company Limited | London | 2014 |
| 20 Beaconsfield Road Management Limited | Bristol | 1981 |
| 20 Beatrice Avenue Management Company Limited | London | 2019 |
| 20 Beatty Road Management Company Limited | London | 2019 |
| 20 Bedford Square (Brighton) RTM Company Limited | Shoreham-By-Sea | 2005 |
| 20 Belgrave Road, Bristol, BS8 2AB Limited | Bristol | 1994 |
| 20 Belmont Limited | Bath | 1979 |
| 20 Belsize Grove Management Limited | | 1968 |
| 20 Belsize Park Gardens Management Company Limited | Edgware | 2002 |
| 20 Benbow Street RTM Company Limited | London | 2026 |
| 20 Bigwood Avenue RTM Company Limited | Haywards Heath | 2024 |
| 20 Blackheath Rise Limited | | 1996 |
| 20 Bramham Gardens Limited | Chelsea, London | 2014 |
| 20 Brechin Ltd | London | 2022 |
| 20 Briary Wood Lane Residents Limited | Herts | 2005 |
| 20 Broad Street Company Limited | Harrogate | 2021 |
| 20 Brookdene Road Freehold Company Limited | London | 2016 |
| 20 Browning Avenue RTM Company Limited | Bournemouth | 2025 |
| 20 Brunswick Square (Hove) Limited | Hove | 1996 |
| 20 Brunswick Square Limited | Gloucester | 2016 |
| 20 Buckleigh Road Ltd | London | 2017 |
| 20 Burlington Avenue KEW (Management) Limited | Richmond | 1997 |
| 20 Burlington Gardens Limited | London | 2005 |
| 20 Burma Road Management Company Limited | Bath | 2026 |
| 20 Burnbury Road Limited | London | 1998 |
| 20 Camden Crescent (Bath) Management Limited | Croydon | 1980 |
| 20 Camden High Street RTM Company Limited | Croydon | 2025 |
| 20 Camden Hill Limited | London | 2018 |
| 20 Campbell Road Freehold Limited | Bournemouth | 2025 |
| 20 Campdale Road Management Company Limited | London | 2021 |
| 20 Campden Hill Square Management Company Limited | Haslemere | 1989 |
| 20 Cearns Road Management Company Limited | Birkenhead | 1990 |
| 20 Chapel Street Management Co Ltd | Truro | 2016 |
| 20 Charles Street Limited | Southend On Sea | 2002 |
| 20 Charlotte Street Bath Limited | Bath | 2016 |
| 20 Chesson Road Residents Association Limited | London | 2018 |
| 20 Chesterton Road (Management Co.) Limited | London | 1973 |
| 20 Chichele Road Limited | London | 2010 |
| 20 City Road RTM Company Limited | London | 2025 |
| 20 Claremont Avenue Management Company Limited | Surrey | 2003 |
| 20 Claremont Road Limited | Seaford | 2023 |
| 20 Clarendon Gardens Limited | London | 1983 |
| 20 Clifton Gardens Management Limited | Dover | 2004 |
| 20 Clifton Road (Littlehampton) Freeholders Limited | Bognor Regis | 2018 |
| 20 Clonbrock Road Limited | London | 1996 |
| 20 Cobham Street Property Management Ltd | Gravesend | 2023 |
| 20 Coleherne Road Residents Company Limited | London | 1992 |
| 20 Conway Street Limited | | 1980 |
| 20 Coombe Road WSM (Maintenance) Company Limited | Weston-Super-Mare | 1982 |
| 20 Cornwall Gardens (Management) Limited | Liverpool | 1987 |
| 20 Court Road Limited | London | 2002 |
| 20 Courtfield Gardens Freehold Limited | | 2001 |
| 20 Craven Avenue Management Limited | London | 2020 |
| 20 Crediton Hill Limited | London | 1981 |
| 20 Crescent Street Weymouth Management Limited | Weymouth | 2007 |
| 20 Crewdson Road Limited | London | 2017 |
| 20 Cromwell Road Hove Limited | Hove | 2012 |
| 20 Crook LOG Management Limited | Bexleyheath | 2019 |
| 20 Dafforne Road Residents Company Limited | Dorking | 1997 |
| 20 Daleham Gardens Limited | | 1985 |
| 20 Delorme Street Management Limited | Hammersmith | 1993 |
| 20 Denbigh Street Residents Association Limited | London | 1995 |
| 20 Dorset Road South Limited | Bexhill-On-Sea | 2012 |
| 20 Durham Terrace Limited | London | 2008 |
| 20 Dyke Road (Brighton) Limited | Hove | 2009 |
| 20 East Cliff Management Company Ltd | Gravesend | 2008 |
| 20 Eastbourne Grove (Freehold) Limited | Westcliff-On-Sea | 2019 |
| 20 Eastdown Park Ltd | London | 1997 |
| 20 Eaton Road Freehold Limited | Brighton | 2010 |
| 20 ELM Park Road (Freehold) Limited | London | 2022 |
| 20 Elmbourne Road Limited | London | 1991 |
| 20 Ennismore Gardens Residents Association Limited | London | 1990 |
| 20 Eversfield Road (Eastbourne) RTM Company Limited | Eastbourne | 2015 |
| 20 Fairhazel Gardens Limited | | 1986 |
| 20 Falcon Ltd | Whitby | 2024 |
| 20 Farleigh Road Limited | London | 2006 |
| 20 Fenwick Road Limited | London | 2020 |
| 20 Ferry Road Management Company Limited | Exeter | 2002 |
| 20 Filton Road Management Company Limited | Bristol | 2025 |
| 20 Flamborough Road (Bridlington) Management Limited | Bridlington | 2009 |
| 20 Fort Crescent (Margate) Management Company Limited | Margate | 2017 |
| 20 Fortess Road Ltd | London | 2025 |
| 20 Fourth Avenue Freehold Limited | Hove | 2020 |
| 20 Foxley Lane Freehold Trust Limited | Surrey | 2006 |
| 20 Franklin Road Weymouth Management Company Limited | Dorset | 2003 |
| 20 Frant Road Management Company Limited | Tunbridge Wells | 1994 |
| 20 Fremantle Square Management Company Limited | Bristol | 1979 |
| 20 Garden Road Bromley (Management) Limited | Bromley | 1988 |
| 20 Garden Walk RTM Company Ltd | London | 2024 |
| 20 Garlands Road Management Company Limited | Redhill | 1986 |