| Buckingham Apartments (Beckenham) Limited | Longfield | 2007 |
| Buckingham Close (Brighton) Limited | Brighton | 2008 |
| Buckingham Court (Bicester) Management Company Limited | Abingdon | 2005 |
| Buckingham Court (Highcliffe) RTM Company Limited | Bournemouth | 2023 |
| Buckingham Court (Hunstanton) Management Limited | King'S Lynn | 1977 |
| Buckingham Court (Newport Pagnell) Residents Association Limited | Milton Keynes | 2003 |
| Buckingham Court (Poole) RTM Company Limited | Milton Keynes | 2026 |
| Buckingham Court (Southampton) Management Limited | Southampton | 1972 |
| Buckingham Court (ST Albans) Limited | St. Albans | 2000 |
| Buckingham Court (Staines) Management Co. Limited | Guildford | 1987 |
| Buckingham Court (Suffolk Close) Residents Company Limited | Croydon | 2002 |
| Buckingham Court Freehold Limited | Winchester | 2016 |
| Buckingham Court Leaseholders Association Limited | Marlow | 1995 |
| Buckingham Court Limited | Leighton Buzzard | 2006 |
| Buckingham Court Management (Plots 1-28) Limited | Hoddesdon | 1994 |
| Buckingham Court Management Company (York) Limited | York | 1984 |
| Buckingham Estates Management Limited | London | 2022 |
| Buckingham Gate Management Company (Southampton) Limited | Southampton | 1992 |
| Buckingham Gate Management Company Limited | Bourne End | 2004 |
| Buckingham Hillcrest Limited | Towcester | 1988 |
| Buckingham House Cheltenham Management Company Limited | Cheltenham | 2021 |
| Buckingham House Management Limited | Preston | 2021 |
| Buckingham House Residents Association Limited | Berkshire | 1994 |
| Buckingham Lodge (L.Spa) Limited | Solihull | 1998 |
| Buckingham Lodge (Management Company) Limited | Bristol | 1994 |
| Buckingham Lodge 2004 Ltd | London | 2004 |
| Buckingham Lofts Management Limited | Bicester | 2015 |
| Buckingham Management Company Limited | Milton Keynes | 2006 |
| Buckingham Mansions (Bournemouth) Limited | Bournemouth | 1959 |
| Buckingham Mansions Freehold Limited | Bournemouth | 2010 |
| Buckingham Mews Management Company Limited | Sutton Coldfield | 2021 |
| Buckingham Park (Weedon Hill) Management Company Limited | New Milton | 2008 |
| Buckingham Place (Jennetts Park) Management Company Limited | Fleet | 2014 |
| Buckingham Place (Wembley Park) Management Limited | Seaton | 1978 |
| Buckingham Place Clifton (Management) Limited | Bristol | 1975 |
| Buckingham Place Management Company Limited | Oxford | 1988 |
| Buckingham Place RTM Company Limited | Brighton | 2013 |
| Buckingham Road Developments Limited | Manchester | 2021 |
| Buckingham Road Property Management Limited | Salisbury | 2004 |
| Buckingham Villa RTM Company Ltd | Ryde | 2022 |
| Buckingham Walk Management Company Limited | New Milton | 2000 |
| Buckinghamshire County Homes Ltd | Harrow | 2019 |
| Buckland (Dover) Management Limited | Taunton | 2023 |
| Buckland Barns Management Limited | Aylesbury | 2000 |
| Buckland Court (Belsize Park) Management Limited | Redditch | 1965 |
| Buckland Court (Dartmouth) Management Company Limited | Bristol | 2000 |
| Buckland Court (Paulton) Limited | Bristol | 1999 |
| Buckland Court (Putney) Residents Co. Limited | Croydon | 1970 |
| Buckland Crescent (Management) Limited | | 1984 |
| Buckland Drive (MK) Management Company Limited | Stevenage | 2005 |
| Buckland Granaries Management Company Limited | Lymington | 2018 |
| Buckland House Management Company Limited | New Milton | 2012 |
| Buckland Park Management Ltd | Benfleet | 2006 |
| Buckland Road Residents Company Limited | Aylesbury | 1995 |
| Buckland Wharf Management Company Limited | Aylesbury | 1990 |
| Bucklands Court (East Cowes) Management Company Limited | Totland Bay | 1990 |
| Bucklands Court (Sydenham Hill) Limited | Croydon | 1995 |
| Bucklands Croft Management Limited | Milton Keynes | 2001 |
| Bucklands END Limited | Bristol | 2023 |
| Bucklands Management Company Limited | Hastings | 2002 |
| Bucklands Road Residents Association Limited | Teddington | 1989 |
| Bucklebury Capital Limited | London | 2021 |
| Bucklebury Heath Management Association Limited | Harlow | 1986 |
| Bucklebury Place (Management) Limited | Reading | 1986 |
| Buckleigh Residents Association Limited | London | 2008 |
| Buckler Heights (Parkstone) Management Company Limited | Poole | 2014 |
| Bucklers Close Limited | Tubridge Wells | 1972 |
| Bucklesham Management Company Limited | Croydon | 2023 |
| Buckley Court (Handforth) Management Co. Limited | Handforth | 1981 |
| Buckley Court Management Limited | Stockport | 1973 |
| Buckley Court Todmorden Management Limited | Todmorden | 2019 |
| Buckley Family Property Development Limited | Northwood | 2025 |
| Buckley Frayne Limited | Manchester | 2016 |
| Buckley Gardens (Melksham) Management Company Limited | Bradley Stoke | 2023 |
| Buckley Grange Court Management Company Limited | Bury | 2002 |
| Buckley House (Coventry) Residents Association Limited | Coventry | 1979 |
| Buckley House (Freehold) Limited | Hoddesdon | 2001 |
| Buckley Mill Management Company Limited | Manchester | 2004 |
| Buckley Place Residents Management Company Limited | West Malling | 2025 |
| Buckley Wharf NO. 1 Residents Association Limited | Chadderton | 1996 |
| Bucknell Court Limited | Wokingham | 2007 |
| Bucksham Avenue (Bognor) Limited | Hove | 2016 |
| Buckshaw Central Management Company Limited | Shrewsbury | 2015 |
| Buckshaw Village Management Company Limited | Hoddesdon | 2003 |
| Buckston Browne Management Limited | Orpington | 2012 |
| Buckstone Business Park Limited | Heywood | 2018 |
| Buckstone Drive Limited | Leeds | 2013 |
| Buckstone Hall Limited | Leeds | 2014 |
| Buckthorn Gardens Management Company Limited | Darwen | 2025 |
| Buckthorn Grange Management Company Limited | New Milton | 2019 |
| Buckthorn Property Solutions Ltd | Stafford | 2018 |
| Buckton Fields Management Company Limited | Northampton | 2015 |
| Buckton Fields West Management Company Limited | New Milton | 2019 |
| Buckton Place (Leiston) Residents Management Company Limited | York | 2020 |
| Buckwell Place Sevenoaks Limited | Sevenoaks | 2005 |
| Buckwood Leys (Houghton Regis) Managing Company Limited | London | 2019 |
| Budbrooke Barton Management Limited | New Milton | 2007 |
| Budbury Tynings Management Company Limited | Bradford-On-Avon | 2007 |
| Buddens Meadow Management Limited | Wimborne | 2002 |
| Budduholdings Limited | Swindon | 2025 |