| B. S. Flats (Irthlingborough) Limited | Kettering | 1976 |
| B.A.E Property Management Ltd | Swansea | 2019 |
| B.A.M. Estate Limited | London | 1977 |
| B.B Groundworks and Property Renovation Limited | Caerphilly | 2025 |
| B.B.C.H. Limited | Hampshire | 2005 |
| B.B.D. Property and Leisure Limited | Lichfield | 1997 |
| B.C. Apartments (Worthing) Limited | Worthing | 1978 |
| B.C. Cave (Rednal) Limited | Northfield, | 1959 |
| B.Collinson Ltd | Rugby | 2026 |
| B.F.E. Limited | Thames Ditton | 1928 |
| B.G.F. Management Company Limited | Guildford | 1995 |
| B.G.S. Residents Company Limited | London | 1984 |
| B.H.C. (Hindhead) Limited | Waterlooville | 1975 |
| B.H.P. Management Company Limited | Harlow | 1981 |
| B.I.C.F. Limited | Taunton | 1997 |
| B.M. Bello Properties Limited | London | 2024 |
| B.M.L. Properties Ltd. | Kilmarnock | 2001 |
| B.M.Marli Limited | Birmingham | 2025 |
| B.M.R. (Wokingham) Management Company Limited | Wokingham | 1999 |
| B.P.L. Management Limited | | 1964 |
| B.P.R. Management Limited | Cheadle | 1986 |
| B.R.A. Limited | Halesowen | 1994 |
| B.R.R. Management Limited | London | 1986 |
| B.W.R. Limited | Addlestone | 1984 |
| B1 Investments Ltd | Langley | 2020 |
| B2 Investment Limited | Leicester | 2021 |
| B2 Landlord Limited | Cardiff | 2012 |
| B5 Central Residents Management Company Limited | Solihull | 2019 |
| B69 Limited | Birmingham | 2007 |
| B91 Management Company Limited | Hemel Hempstead | 2006 |
| BA Hundal Property Ltd | Birmingham | 2025 |
| BA Mehat Properties Limited | Bradford | 2021 |
| BAA Property Management Ltd | Birmingham | 2016 |
| Baadsmill Holdings Ltd | Livingston | 2020 |
| Baassett Bricks Property Developers Ltd | Halifax | 2026 |
| Babaji Property Services Limited | Bilston | 2026 |
| Babbacombe Downs Court Management Company Limited | Torquay | 1989 |
| Babbacombe Heights Management Company Limited | Paignton | 2020 |
| Babbacombe House Limited | Torquay | 1987 |
| Babdown Farm (Tetbury) Management Company Number One Limited | Croydon | 2015 |
| Babdown Farm (Tetbury) Management Company Number Two Limited | Croydon | 2015 |
| Babhomes Ltd | St. Leonards-On-Sea | 2026 |
| Babilon House Management Company Limited | London | 2003 |
| Babington Court Freehold Limited | Bromley | 2012 |
| Babington Holdings Limited | London | 2016 |
| Babington Quarter Management Company Limited | Tarporley | 2019 |
| Babington Road Management Limited | | 2001 |
| Babworth Road Property Management Limited | Doncaster | 2007 |
| Baby Reindeer Ltd | Wakefield | 2024 |
| Babylon Property Northwest Limited | Liverpool | 2024 |
| Bacc Limited | Glasgow | 2025 |
| Bacchus Franchise Limited | Sittingbourne | 2025 |
| Bach Property Ltd | London | 2011 |
| Back Church Lane RTM Company Limited | London | 2021 |
| Back Esplanade Mews Management Company Limited | Poulton Le Fylde | 2019 |
| Back Lane (Guiseley) Management Company Limited | Hoddesdon | 2003 |
| Back Lane (Ingleton) Management Company Ltd | Carnforth | 2023 |
| Back Lane (Long Lawford) Management Limited | Shrewsbury | 2006 |
| Back Lane Management Company (Essex) Limited | Worthing | 2013 |
| Back Lane Property Management Limited | Leicester | 2017 |
| Back Sitwell Limited | Manchester | 2022 |
| Backbridge (Malmesbury) Management Company Limited | York | 2022 |
| Backhouse Blunsdon Management Company Limited | Salisbury | 2022 |
| Backhouse Highworth Management Company Limited | Salisbury | 2022 |
| Backhouse Highworth Phase 2 Management Company Limited | Salisbury | 2024 |
| Backhouse Midsomer Norton Facilities Management Limited | Salisbury | 2022 |
| Backhouse Moreton in Marsh Management Company Limited | Salisbury | 2023 |
| Backmoor Court Flats Co. Limited | Sheffield | 1973 |
| Backstop OMC Ltd. | Hungerford | 2015 |
| Backwell Grove Management Company Limited | Bristol | 2025 |
| Backwell Heights Management Company Ltd | Middlesbrough | 2026 |
| Backwell Management Services Limited | Bristol | 2025 |
| Backworth 171819 Management Ltd | Newcastle Upon Tyne | 2018 |
| Bacoa Ltd. | Leigh-On-Sea | 2012 |
| Bacons Court (Ashwell) Residents Association Limited | Baldock | 1980 |
| Bacton Road Management Company Limited | Felixstowe | 2023 |
| Bactoncourt Limited | London | 1991 |
| Badbury Fields Faringdon Limited | Witney | 2024 |
| Badbury Green Management Company Limited | Tarporley | 2025 |
| Badbury Heights (Blandford) Management Company Limited | Blandford Forum | 2008 |
| Badbury Heights Management Company Limited | Blandford Forum | 2004 |
| Badbury Heights NO 2 (Blandford) Management Company Limited | Salisbury | 2010 |
| Badbury Orchard Management Company Limited | Swindon | 2026 |
| Badbury Park (Swindon) Management Company Limited | York | 2014 |
| Badbury Park (Swindon) NO 2 Management Company Limited | York | 2014 |
| Badbury Park (Swindon) NO 3 Management Company Limited | York | 2021 |
| Badbury Reach Management Company Limited | Hemel Hempstead | 2020 |
| Baden - Powell Hall (Scholes) Management Company Limited | Bourne End | 2009 |
| Baden Court Management Company Limited | Lytham St Annes | 2006 |
| Baden House Ltd | Bath | 2019 |
| Baden Powell Court Management Company Limited | Godalming | 2004 |
| Bader Heights (Tangmere) Management Company Limited | Hoddesdon | 2015 |
| Bader House Residents Limited | Salisbury | 2007 |
| Bader Road Property Ltd | Stafford | 2025 |
| Badger Gardens Management Limited | Uxbridge | 2008 |
| Badger Hill (Management Company) Limited | Bedford | 2016 |
| Badger Wood Place Management Ltd. | Fordingbridge | 1989 |
| Badger's Walk (Chester) Management Company Limited | Chester | 1988 |
| Badgerfields (Management) Limited | South Yorkshire | 2004 |
| Badgerhill Properties Management Company Limited | Knaresborough | 2017 |