| Broadwin Group Ltd | Beckenham | 2016 |
| Broardway 1965 Limited | Frome | 2013 |
| Brobot Fuels Limited | Hartlepool | 2011 |
| Brochah UK Ltd. | Manchester | 2025 |
| Brock Fabrics Limited | Blackburn | 2014 |
| Brockdene Investments Limited | Swanley | 2018 |
| Brockenhurst Brewery Limited | Brockenhurst | 2017 |
| Brockham Clare Limited | London | 2023 |
| Brockhurst 1957 Limited | Gosport | 2015 |
| Brockington Bellows Limited | Llanelli | 2003 |
| Brockington Group International Limited | Llanelli | 2003 |
| Brocklehurst Trading Group Ltd | Wigan | 2018 |
| Brockley Hill Park Trustee | London | 2011 |
| Brockley Woodland Limited | Bristol | 2011 |
| Brockton Capital Curzon Street Limited | London | 2010 |
| Brockton Properties Limited | Rochdale | 2021 |
| Brockwood Park Krishnamurti Educational Centre Limited | Nr Alresford | 1972 |
| Brod Yachting Ltd | Blackpool | 2023 |
| Brodeloe Ltd | Coventry | 2023 |
| Brodernas Bemanning Invest Limited | London | 2022 |
| Brodernas Bemanning Limited | London | 2022 |
| Brodersen International Limited | Kingston Upon Thames | 2003 |
| Brodie & BOO Limited | Huddersfield | 2016 |
| Brogan Developments Limited | Larbert | 2008 |
| Brogan Fuels Limited | Larbert | 1988 |
| Brogan Holdings Limited | Larbert | 2008 |
| Brogan Oils Limited | Larbert | 2007 |
| Brogelles Limited | Reigate | 2014 |
| Brojo Ltd | Winchester | 2016 |
| Broken Biscuits Limited | Kington | 2017 |
| Broker Claims (NI) Limited | Belfast | 2015 |
| Broker Connect Limited | Redditch | 1995 |
| Broker House Group Ltd | London | 2025 |
| Broker Power Limited | London | 2012 |
| Brokerlink Limited | Ilkley | 1999 |
| Brokk Hire UK (2011) Limited | Gallowfields Trading Estate, Richmond | 2011 |
| Brokk Limited | Barnard Castle | 2002 |
| Brolliant Limited | London | 2020 |
| Brolly Limited | Norfolk | 2007 |
| Brolly UK Technology Limited | Norwich | 2016 |
| Bromborough Village Car Wash Ltd | Wirral | 2019 |
| Bromburg Ltd | Lawrenny | 2011 |
| Brome Treatment Limited | Dereham | 2012 |
| Bromek Developments Ltd | Coventry | 2009 |
| Bromham Community Enterprises Limited | Chippenham | 2025 |
| Bromham Developments Ltd | Letchworth Garden City | 2024 |
| Bromley 1959 Limited | London | 2013 |
| Bromley Accounting Limited | Bromley | 2015 |
| Bromley CWA Ltd | Bromley | 2015 |
| Bromley FC Academy Limited | Bromley | 2009 |
| Bromley Mencap Enterprises Limited | Bromley | 1994 |
| Bromley Motor Works Limited | Sevenoaks | 1967 |
| Brompton Holdings Limited | Aberdeen | 1977 |
| Brompton Holidays Limited | Borehamwood | 2015 |
| Brompton Homes Limited | Bristol | 2022 |
| Bromrate Limited | Bridgend | 2025 |
| Bromreed Limited | Bridgend | 2024 |
| Broms Limited | London | 2006 |
| Bromsgrove Accountancy Services Limited | Bromsgrove | 2015 |
| Bromsgrove Motor Factors Ltd | Ludlow | 2026 |
| Bromsgrove Self Storage Ltd | Bromsgrove | 2022 |
| Bromtone Limited | Bridgend | 2024 |
| Bromyard House (North) Limited | Cobham | 2006 |
| Bromyard Vets Limited | York | 2016 |
| Brone Park Properties Ltd | Coleraine | 2007 |
| Bronte Bioenergie Holdings Limited | Taunton | 2011 |
| Bronte People Solutions Limited | Brough | 2024 |
| Bronte Tweed Ltd | Leeds | 2023 |
| Bronte Way 1964 Limited | Southampton | 2014 |
| Brontek Yachting Ltd | London | 2026 |
| Brontyx Axelyra Services Ltd | Manchester | 2026 |
| Brontyx Novatrix Solutions Ltd | Manchester | 2026 |
| Brontë Doidge Trenouth Property and Developments Limited | Frome | 2024 |
| Bronze Horizon Investment Team Ltd | Manchester | 2026 |
| Bronze Horizon Trading House Ltd | Manchester | 2026 |
| Brooge Petroleum and GAS Investment Company (Bpgic) PLC | London | 2018 |
| Brook & Brook Limited | St. Albans | 2021 |
| Brook 1964 Limited | Swindon | 2015 |
| Brook 1979 Limited | Ballyclare | 2013 |
| Brook Avenue 1960 Limited | Carrickfergus | 2014 |
| Brook Company Midlands Limited | Bromsgrove | 2026 |
| Brook Denture Clinic Limited | Preston | 2013 |
| Brook END Farm Management Company Limited | Burnham | 2002 |
| Brook Food Ltd | Williton | 2013 |
| Brook Food Trading Limited | Williton | 2013 |
| Brook Garage (Coleraine) Limited - the | Co. Armagh | 1997 |
| Brook Heating and Mechanical Services Ltd | Bournemouth | 2015 |
| Brook House (Brixton) Management Company Limited | London | 2017 |
| Brook Investment Management Ltd | Edinburgh | 2010 |
| Brook Lane Block B Property Management Limited | Bangor | 2021 |
| Brook Lane Property Management Limited | Bangor | 2021 |
| Brook Rise Ltd | Loughborough | 2019 |
| Brook Street Surgery Property Limited | Belfast | 2015 |
| Brook Taverner 2016 Limited | Keighley | 2016 |
| Brookdale Management 2000 Limited | Hammersmith | 1996 |
| Brookdale Nursing Home Limited | Stourbridge | 1992 |
| Brookdene Limited | London | 2017 |
| Brooke Air Holdings Limited | Wickford | 1999 |
| Brooke Homes (Mayfair) Limited | London | 2017 |
| Brooke House Management Services Ltd. | Birmingham | 1979 |