| BMV Apartment Management Company NO. 2 Limited | Torquay | 1990 |
| BN Energy Assessor Ltd | Peacehaven | 2020 |
| BNB Property Management Ltd | Edinburgh | 2017 |
| BNK Chambers (Worcester Park) RTM Company Limited | Worcester Park | 2021 |
| BNP UK Properties Ltd | London | 2023 |
| BNT Property Limited | Bicester | 2026 |
| BNY Ltd | Glasgow | 2022 |
| Boakes Meadow Residents Company Limited | Sevenoaks | 1967 |
| Board DOH Ltd | Southwold | 2024 |
| Boardmasters Ironing Services Limited | Hassocks | 2025 |
| Boardoffer Limited | Melton Mowbray | 1997 |
| Boards (Bideford) Limited | Barnstaple | 2007 |
| Boarlands (Management and Property) Company Limited | Brampton | 1981 |
| Boarley Court Management Company Limited | Maidstone | 1987 |
| Boars Head Barton Management Company Limited | Preston | 2022 |
| Boars Hill Management Company Limited | London | 2011 |
| Boarsbarrow Farms Ltd | Ilminster | 2021 |
| Boarsbarrow Properties Ltd | Ilminster | 2021 |
| Boarscroft Management Limited | Tring | 1995 |
| Boat Lane Court Limited | Warwick | 1990 |
| Boat Race Court (Freehold) Limited | London | 2012 |
| Boat Race House Management Limited | Putney | 2018 |
| Boathouse Field RTM Company Limited | Lichfield | 2019 |
| Boathouse Investments (SW) Ltd | Plymouth | 2022 |
| Boathouse Reach Management Limited | Henley-On-Thames | 1989 |
| Boatmans Management Company Limited | Manchester | 2002 |
| Boatmans Wharf (Shipley) Management Company Limited | Leeds | 2005 |
| Boatpride Limited | London | 2007 |
| Bobblestock Residents Company Limited | Hereford | 1973 |
| Bockings Management Ltd | Northwood | 2025 |
| Bockmer END Management Company Limited | Aylesbury | 2023 |
| Bocombra Hill Management Co.Ltd | Ballyclare | 2005 |
| Bocombra Hill Portadown Management Limited | Gilford | 2011 |
| Bocombra Manor Management Ltd | Gilford | 2013 |
| Bocombra Park Portadown Management Limited | Craigavon | 2024 |
| Boconnell Court Management Limited | Newry | 2009 |
| BOD Diddan (Llandudno) Management Company Limited | Llandudno | 2016 |
| BOD Difyr Management Company Limited | Colwyn Bay | 2006 |
| Bodach Property Ltd | Banchory | 2020 |
| Bodafon Country Estate Management Limited | Halifax | 2004 |
| Bodanova Ltd | Halifax | 2026 |
| Bodare Management Company Limited | Wadebridge | 2000 |
| Bodbrook Limited | Bideford | 1984 |
| Boddington House Management Company Limited | London | 1997 |
| Boddington Management Limited | Witney | 2016 |
| Boddington Property Management Ltd | Kettering | 2023 |
| Boden Gardens Property Management Limited | West Midlands | 2007 |
| Bodiam Court Management Company Limited | Orpington | 2003 |
| Bodington Manor (Adel) Management Company Limited | Southend-On-Sea | 2014 |
| Bodlewell House RTM Company Limited | Jarrow | 2018 |
| Bodlondeb Castle Management Limited | Conwy | 2005 |
| Bodmin Court Residents Association Limited | Norwich | 2003 |
| Bodo & Turner Properties Ltd | Rossendale | 2021 |
| Bodorgan Court Management Limited | Bournemouth | 1984 |
| Bodorgan Freehold Limited | Ringwood | 2003 |
| Bodorgan Homes Grounds Management Company Limited | Birmingham | 2025 |
| Bodorgan Road Management Company Limited | Bournemouth | 1997 |
| Bodymatters Services Limited | London | 2024 |
| Boetts Ltd | Newport | 2026 |
| BOG Road Management Co Limited | Newry | 2009 |
| Bogense Vinduespolering Ltd | London | 2025 |
| Bogriffie Management Company Limited | Aberdeen | 2014 |
| Bohd Management Ltd | London | 2021 |
| Boho RTM Company Limited | Chipstead | 2025 |
| Boiling a Frog Limited | London | 2021 |
| Bois Avenue Spinney Limited | Amersham | 2023 |
| Bois Gate House Management Limited | Chesham Bois | 2015 |
| Bois Lane Management Limited | Old Amersham | 2006 |
| Boisdale House Limited | Plymouth | 2016 |
| Bol-Y-Maer Apartments Management Company Limited | Middlesex | 2021 |
| Bolberry Court Management Limited | Southampton | 1995 |
| Bold Heath Mews Management Company Limited | Manchester | 2022 |
| Bold Property Management Limited | London | 2022 |
| Bold Street Management Co. Limited | Wirral | 2007 |
| Boldcore Ltd | London | 2025 |
| Boldfell Limited | East Sussex | 1982 |
| Boldmere Place Residents Association Limited | Birmingham | 2020 |
| Boldram Property Management Ltd | Berwick Upon Tweed | 2024 |
| Boldran Limited | Mill Hill | 1986 |
| Boldrewood Court Management Company Limited | Lenham | 1986 |
| Bole Hill Management Limited | Sheffield | 1979 |
| Bolebrooke Gardens Residents Association Limited | Bexhill-On-Sea | 1988 |
| Bolebrooke Road (Bexhill) Limited | Hastings | 2016 |
| Bolehill Mews Management Company Ltd | South Yorkshire | 2000 |
| Boleyn Court (Beckenham) RTM Company Limited | London | 2007 |
| Boleyn Court Freehold (Redhill) Limited | Croydon | 2011 |
| Boleyn Court Management Limited | Benfleet | 1988 |
| Boleyn Management Company (Sutton) Limited | Sutton | 1987 |
| Boleyn Management Limited | Salisbury | 2012 |
| Bolham Lane Management Company Ltd | Retford | 2017 |
| Bolham Rise (Retford) Management Company Limited | Southend On Sea | 2013 |
| Bolingbroke House Limited | Maidstone | 1982 |
| Bolingbroke Management Co. Ltd | Barnet | 2016 |
| Bolita Ltd | London | 2024 |
| Bollin Court (Brooklands) Management Limited | Croydon | 2001 |
| Bollin Court (Wilmslow) Limited | Cheadle | 1969 |
| Bollin Court Flat Management Company Limited | Macclesfield | 1995 |
| Bollin Grange (Macclesfield) Management Company Limited | Tarporley | 2023 |
| Bollin Grange (Management) Limited | Altrincham | 1982 |
| Bollin HEY Management Company Limited | Manchester | 2015 |