| Brazen Body Piercings Limited | Llandudno | 2021 |
| Brazen Mens Hair Limited | Edinburgh | 2023 |
| Brazen Polwarth Limited | Edinburgh | 2025 |
| Braziers, Flambeaux’S & Fire Sources (Shepperton) Limited | Chobham | 2025 |
| Brazil Fashion and Beauty Ltd | London | 2025 |
| Brazil Hair & Beauty Ltd | Swindon | 2009 |
| Brazil NUT Investments Limited | Denmead | 1972 |
| Brazilian Aesthetic Medicine Ltd | Oldbury | 2025 |
| Brazilian Beauty Aesthetics Ltd | London | 2024 |
| Brazilian Beauty by T Ltd | London | 2024 |
| Brazilian Beauty Center Ltd | Milton Keynes | 2026 |
| Brazilian Bootylift Lanarkshire Ltd | Wishaw | 2024 |
| Brazilian Chamber of Commerce in Great Britain(The) | London | 1942 |
| Brazilian Events UK Ltd | Southport | 2017 |
| Brazilian Gold Cosmetics Limited | Birmingham | 2022 |
| Brazilian Property Investments Limited | Waltham Cross | 2007 |
| Brazilian Soul Ltd | London | 2019 |
| Brazilian Soul Nails Ltd | London | 2023 |
| Brazilian Style Ltd | London | 2017 |
| Brazilian UK Hair & Beauty by Adam Ltd | London | 2025 |
| Brazilian Waxing Company Limited | Manchester | 2018 |
| Braziliant Waxing Ltd | Nottingham | 2014 |
| Brazuk Fit Ltd | London | 2026 |
| Brazuka International | Liverpool | 2012 |
| Brazukitasbarbers Ltd | Glasgow | 2020 |
| Brazzle Finance Ltd | London | 2015 |
| Brazzle Newco Limited | London | 2020 |
| BRB Aesthetics Limited | Aberdeen | 2025 |
| Brbr Bullet Ltd | Northwich | 2025 |
| BRC & Sons Limited | Southall | 2020 |
| BRC Plus Ltd | Bradford | 2020 |
| Brce Ltd | London | 2009 |
| BRD Hand Car Wash Ltd | Welshpool | 2024 |
| BRD Safety Ltd | London | 2017 |
| BRDWY123 Ltd | Halifax | 2025 |
| Brdwylsr Ltd | Halifax | 2025 |
| BRE Medical Ltd | Wellingborough | 2023 |
| Breach Farm Woodland Burial Ground Limited | Andover | 2004 |
| Breach Lane Dog Field Ltd | Canterbury | 2024 |
| Breach Menders Support Services Ltd | London | 2021 |
| Breach Repairer Ministries | Dunstable | 2015 |
| Breachwood Green Ltd | Hitchin | 2020 |
| Bread and Roses Collaborative CIC | London | 2025 |
| Bread Club Limited | Doncaster | 2015 |
| Bread Creative Limited | London | 2014 |
| Bread for the Masses Foundation | Manchester | 2010 |
| Bread of Hope | London | 2015 |
| Bread of Life Chapel | London | 2006 |
| Bread of Life Ministries (Bristol) | Bristol | 2008 |
| Bread WIN Ltd | Manchester | 2021 |
| BREAD4SOUL Ltd | Hemel Hempstead | 2023 |
| Breadalbane Development Trust | Aberfeldy | 2019 |
| Breadline Project | Banbury | 2021 |
| Breadsafe Ltd | Ramsgate | 2025 |
| Breadstick Limited | Stafford | 2018 |
| Breagh Botanica Medical Aesthetics Ltd | Glasgow | 2025 |
| Breagha (Scotland) Ltd | Glasgow | 2010 |
| Breaghwy Ltd | Chorley | 2025 |
| Break Away Trading Limited | Morecambe | 2019 |
| Break Forth International Church, Davies M. Mulenga Ministries Ltd | West Midlands | 2006 |
| Break on Through Limited | Crediton | 2019 |
| Break the Burn Ltd | London | 2025 |
| Break the Code Ltd | London | 2026 |
| Break to Build Ltd | Oldham | 2023 |
| Breakaway Coaching and Analytics (BCA) Limited | Epsom | 2020 |
| Breakaway Singles Club (Social Functions) Limited | London | 1981 |
| Breakaway Tennis Ltd | Abingdon | 2023 |
| Breakdown Recovery Liverpool Limited | Liverpool | 2023 |
| Breakout Self - Defence CIC | Sheffield | 2025 |
| Breakspears Road Residents' Association Limited | Brockley | 1968 |
| Breakthrough Business Development Limited | Newport | 2019 |
| Breakthrough Foundation | London | 2014 |
| Breakthrough Generation for Christ | Staffordshire | 2007 |
| Breakthrough Hypnotherapy Limited | Glasgow | 2020 |
| BREAKTHRU4LIFFE Ltd | Southampton | 2019 |
| Breakup & Divorce Global Limited | Ascot | 2026 |
| Breakwater Marine Engineers Ltd | Brixham | 2018 |
| Breal Hair Ltd | Barking | 2023 |
| Breandenk Limited | Blackburn | 2020 |
| Brear Vale Management Company Limited | Chester | 2021 |
| Breath Axis Ltd | London | 2018 |
| Breath of GOD Parish Limited | Erith | 2016 |
| Breathe & Flow Wellbeing Ltd | Billingshurst | 2025 |
| Breathe and Begin Ltd | Glasgow | 2025 |
| Breathe and Move Ltd | London | 2026 |
| Breathe Aviation Ltd | Bristol | 2011 |
| Breathe Barbers Limited | London | 2020 |
| Breathe Beauty Therapy Limited | Widnes | 2018 |
| Breathe by Emma Limited | London | 2023 |
| Breathe Creative Community Interest Company | Pontycymer | 2018 |
| Breathe Falmouth Club Limited | Falmouth | 2015 |
| Breathe Fundraising Ltd | Southampton | 2017 |
| Breathe Health and Beauty Ltd | London | 2017 |
| Breathe in Wellbeing Ltd | Lytham St. Annes | 2023 |
| Breathe Inner Peace Ltd | Oxted | 2022 |
| Breathe Limited | Sandown | 2000 |
| Breathe Manor Farm Limited | Rotherham | 2023 |
| Breathe New Life Church | Stoke-On-Trent | 2009 |
| Breathe Pilates Studio Ltd | Durley | 2023 |
| Breathe Pilates Studio Training Ltd | Durley | 2025 |