| 1 Archway Mews Freehold Limited | London | 2017 |
| 1 Arnewood Road Management Limited | Bournemouth | 1991 |
| 1 Ascalon Street RTM Company Ltd | London | 2011 |
| 1 Atlantic Road South (WSM) Management Company Limited | Weston-Super-Mare | 1998 |
| 1 Auckland Hill Limited | London | 2018 |
| 1 Augusta Road Management Company Limited | Ramsgate | 2023 |
| 1 Avenue Road Freehold Limited | Leamington Spa | 2025 |
| 1 Baker's ROW Residents Limited | London | 2013 |
| 1 Bakers ROW Ltd | Hemel Hempstead | 2009 |
| 1 Barlow Place Limited | London | 2012 |
| 1 Barnehurst (Management) Limited | Erith | 1991 |
| 1 Bassett Road Management Company Limited | London | 2004 |
| 1 Bathwick Street Bath (Management) Limited | Avon | 1987 |
| 1 Beast Banks Management Company Limited | Cumbria | 2007 |
| 1 Beaufort Gardens RTM Company Ltd | London | 2020 |
| 1 Bellevue Clifton Management Limited | Bristol | 1984 |
| 1 Belmont Villas Management Company Limited | Penzance | 2022 |
| 1 Belsize Avenue Limited | London | 2000 |
| 1 Beresford Road RTM Company Limited | Wadhurst | 2024 |
| 1 Berkeley Road Limited | Broadstairs | 2008 |
| 1 Bevois Mansions Freehold Limited | Southampton | 2025 |
| 1 Bina Gardens Freehold Limited | London | 1997 |
| 1 Birnam Road (Freehold) Limited | London | 2010 |
| 1 Bishops Road Limited | London | 1995 |
| 1 Blenheim Park Road Managements Limited | Surrey. | 1988 |
| 1 Blenheim Road (Barnet) Management Co. Limited | Hertfordshire | 2003 |
| 1 Blurton Road Management Company Limited | London | 2022 |
| 1 Bovingdon Road Freehold Limited | London | 2002 |
| 1 Britannia Road (NR30) RTM Company Limited | Harlow | 2024 |
| 1 Brookdale Terrace Management Company Limited | Torquay | 2006 |
| 1 Brunstead Road Limited | Poole | 1992 |
| 1 Brunswick Street Management Company Ltd | Teignmouth | 2015 |
| 1 Brussels Road Management Company Limited | Chelmsford | 2006 |
| 1 Bull Pitch Management Company Limited | Bristol | 2020 |
| 1 Butler Avenue Management Ltd | Harrow | 2016 |
| 1 Buttercross Lane Ltd | Epping | 2023 |
| 1 Caerau Crescent Management Ltd | Romsey | 2023 |
| 1 Callis Court Road Limited | Broadstairs | 2018 |
| 1 Callow Street RTM Company Limited | Royston | 2008 |
| 1 Cambridge Place Management Company Ltd | Cambridge | 2021 |
| 1 Cameron Road Management Company Limited | Croydon | 1985 |
| 1 Carmalt Gardens Freehold Ltd | Putney | 2008 |
| 1 Catharine Place Management (Bath) Limited | | 1976 |
| 1 Cavendish Crescent Bath (Management) Company Limited | Corsham | 1994 |
| 1 Cavendish Drive (Marston) Management Company Limited | Oxford | 2011 |
| 1 Cecil Road Management Company Ltd | Exmouth | 2017 |
| 1 Challoner Crescent Management Limited | | 1996 |
| 1 Chepstow Villas Limited | London | 1989 |
| 1 Chertsey Road Management Limited | Bristol | 2026 |
| 1 Chesson Road Freehold Management Limited | West Kensington | 2009 |
| 1 Cheyne Walk Residents Association Limited | Northwich | 1990 |
| 1 Christchurch Road Clifton Management Company Limited | Radstock | 1982 |
| 1 Cintra Park Residents Company Limited | London | 2002 |
| 1 Claremont Road Management Company Limited | Shepton Mallet | 1991 |
| 1 Clarence Place RTM Company Limited | Plymouth | 2021 |
| 1 Clarence Square (Brighton) Limited | Shoreham-By-Sea | 2011 |
| 1 Clarence Square RTM Company Limited | Cheltenham | 2005 |
| 1 Clarendon Gardens (Ramsgate) Limited | Ramsgate | 2021 |
| 1 Clarkson Street RTM Company Limited | Ipswich | 2019 |
| 1 Clerkenwell Green Freehold Limited | London | 2013 |
| 1 Clifton Gardens Limited | London | 1984 |
| 1 Cobham Road TMC Limited | Leatherhead | 2025 |
| 1 Colnbrook Street Management Company Limited | London | 2010 |
| 1 Concorde Way RTM Company Ltd | London | 2016 |
| 1 Connaught Road Hove Limited | East Sussex | 1995 |
| 1 Coronet Street RTM Company Limited | London | 2024 |
| 1 Courtnell Street Limited | London | 2019 |
| 1 Cowper Road Management Company Limited | Cambridge | 2017 |
| 1 Cowper Road Worthing RTM Company Limited | Worthing | 2008 |
| 1 Cranley Gardens (Freehold) Limited | | 2002 |
| 1 Cranwich Road Management Company Limited | London | 2004 |
| 1 Crescent Management Limited | London | 2021 |
| 1 Crescent Way RTM Company Limited | London | 2006 |
| 1 Crookham Road Management Company Limited | London | 1990 |
| 1 Cross Hill Management Company Limited | Kings Langley | 1997 |
| 1 Cross Street Management Company Limited | Royal Wootton Bassett | 2025 |
| 1 Cumberland Park Residents Association Limited | London | 1997 |
| 1 Cwrt YR Aeron Limited | Swansea | 2025 |
| 1 Dartmouth Terrace Limited | Gravesend | 2013 |
| 1 Daysbrook Road Freehold Limited | London | 2008 |
| 1 Deal Street Limited | Cambridge | 1999 |
| 1 Deerhurst Road Freehold Ltd | London | 2024 |
| 1 Denmark Avenue Management Company Limited | Bristol | 2001 |
| 1 Devonfield Road Limited | Merseyside | 2007 |
| 1 Duke Street (Reading) Management Company Limited | London | 2022 |
| 1 Dunollie Place Limited | London | 1991 |
| 1 Dunraven Road Management Limited | Wirral | 2019 |
| 1 Durham Road Freehold Management Limited | Bromley | 2024 |
| 1 Dynham Road Ltd | London | 2021 |
| 1 Eardley Crescent Limited | London | 2025 |
| 1 Earls Court Square Freehold Limited | London | 2014 |
| 1 East Churchfield Residents Company Limited | Kendal | 2021 |
| 1 East Street Property Management Limited | Herne Bay | 2012 |
| 1 Eastern Esplanade Management Ltd | Broadstairs | 2022 |
| 1 Eccleston Square Limited | London | 1998 |
| 1 Egerton Road Management Company Limited | Ivybridge | 2001 |
| 1 Elder Avenue Limited | London | 1994 |
| 1 Elswick Street Limited | | 2005 |
| 1 Ennismore Gardens Freehold Limited | London | 2021 |
| 1 Essendine Road (Freehold) Limited | London | 2016 |