| Break Beat Kaos Limited | London | 2003 |
| Break Dance Manchester Ltd | Manchester | 2018 |
| Break Escape Holdings Ltd | Loughborough | 2023 |
| Break Escape Ltd | Loughborough | 2016 |
| Break Escape Nottingham Ltd | Nottingham | 2023 |
| Break Fifty Ltd | Cranleigh | 2026 |
| Break for IT Media Limited | Cheltenham | 2011 |
| Break Mission (Donate to Participate) CIC | Birmingham | 2014 |
| Break Music Limited | Radstock | 2024 |
| Break the Mould C.I.C. | Glasgow | 2022 |
| Break the Mute Limited | Manchester | 2020 |
| Break Thru Productions Limited | Carshalton | 2007 |
| Break-For-Life CIC | Southampton | 2024 |
| Break-Point Corporate Ltd. | London | 2016 |
| Break-Point Events Ltd | London | 2017 |
| Break-Point Performance Ltd | London | 2017 |
| Breakaway Cycling Retreats & Concierge Service Limited | London | 2025 |
| Breakaway Entertainment Ltd | Sheffield | 2012 |
| Breakaway Surf Ltd | Lincoln | 2025 |
| Breakdown Music Productions Ltd | Oldham | 2018 |
| Breaker Point Limited | Bristol | 2019 |
| Breakfast With James Ltd | London | 1999 |
| Breakfree Stoke Ltd | Preston | 2026 |
| Breakheart Community Project Ltd | Dursley | 2009 |
| Breakhouse Sports Ltd | Bangor | 2024 |
| Breakin Escape Rooms Limited | Leeds | 2016 |
| Breakin Hearts Limited | Poole | 2024 |
| Breakin Science Limited | London | 2012 |
| Breakin' Loose Limited | Southwalk | 1990 |
| Breaking Artz Group Ltd | Stevenage | 2024 |
| Breaking Atoms Limited | London | 2022 |
| Breaking Bands Ltd | Worcester | 2018 |
| Breaking Point Fitness Ltd | Arbroath | 2023 |
| Breaking Point Health and Fitness Ltd | Arbroath | 2019 |
| Breaking the 4TH Events Ltd | London | 2025 |
| Breaking Wave Group Limited | Bath | 2025 |
| Breaking Your Mould Ltd | London | 2015 |
| Breakneck Comedy Limited | Aberdeen | 2016 |
| Breakout Chester Ltd | Manchester | 2016 |
| Breakout Escape Games Inverness Limited | Aboyne | 2015 |
| Breakout Gallery CIC | Haverfordwest | 2025 |
| Breakout Games (Aberdeen) Limited | Inverurie | 2019 |
| Breakout Games Limited | Glasgow | 2014 |
| Breakpoint Manchester Ltd | Manchester | 2024 |
| Breakpoint Padel Limited | Rochford | 2025 |
| Breakthebarrier CIC | London | 2022 |
| Breakthrough Fitness Limited | Ipswich | 2025 |
| Breakthrough Live Ltd | Glasgow | 2025 |
| Breakthrough Retreats Ltd | Wimborne | 2026 |
| Breakup.Biz Limited | Watford | 2009 |
| Breakwater Pictures (London) Limited | London | 2025 |
| Bream Rugby Football Club Limited | Lydney | 2013 |
| Breamgrove Limited | London | 1970 |
| Breamore Ancient Buildings Conservation Trust | Croydon | 1990 |
| Brean Leisure Park Ltd. | London | 1970 |
| Brean Theme Park Limited | Cheltenham | 2002 |
| Breath Action Movement Ltd | Barnstaple | 2023 |
| Breath and Voice Ltd | Dunstable | 2022 |
| Breath Body Earth Ltd | Barnet | 2023 |
| Breath of Life Yoga Ltd | London | 2013 |
| Breathe Active Ltd | Bishops Cannings | 2024 |
| Breathe Classical Pilates Limited | Sheffield | 2021 |
| Breathe Fitness Limited | Harrow | 2019 |
| Breathe Glasgow Ltd | Glasgow | 2023 |
| Breathe Life Arts CIC | Stoke-On-Trent | 2023 |
| Breathe Pilates & Wellbeing Ltd | Dungannon | 2025 |
| Breathe Pilates by Sarah Ltd | London | 2026 |
| Breathe Pilates Limited | Barnsley | 2025 |
| Breathe Reformer Pilates Ltd | Solihull | 2025 |
| Breathe UK Training C.I.C. | Stoke-On-Trent | 2013 |
| Breathin Ltd | London | 2025 |
| Breathing Space Studio Limited | Aberdeen | 2025 |
| Breathless Productions Limited | London | 2022 |
| Brechfa Mountain Bike Club CIC | Carmarthen | 2022 |
| Brechin Castle Equestrian Centre Ltd. | Brechin | 2014 |
| Brechin City Football Club Limited | Brechin | 2021 |
| Breckenbrough Events Limited | Ripon | 2022 |
| Breckland ALL Sports Enterprise Community Interest Company | Thetford | 2026 |
| Breckland Balloons Ltd. | King'S Lynn | 1999 |
| Breckland Land Rover Club Limited | Norwich | 1985 |
| Breckland Sporting Club Ltd | Thetford | 2026 |
| Brecon Boathouse Limited | Powys | 1978 |
| Brecon Bowling Club Limited | Brecon | 2016 |
| Brecon Jazz | Brecon | 2023 |
| Brecon Jazz Festival Ltd. | Brecon | 1996 |
| Brecon Motor Club Ltd | Crickhowell | 2024 |
| Brecon Rugby Football Club Limited | Brecon | 2015 |
| Bred in the Bone Theatre Company | Worthing | 2009 |
| Brede Steam Engine Society | Rye | 1997 |
| Bredon Amateur Football Club Ltd | Bredon | 2012 |
| Bredon Hill Autograss Club Limited | Ross-On-Wye | 1987 |
| Bree Merryn Art Online Limited | Keighley | 2019 |
| Bree Yoga Ltd | West Molesey | 2024 |
| Breed Limited | London | 2006 |
| Breeden Holdings Limited | Polegate | 2020 |
| Breedon Priory Health Club Limited | Melbourne | 2012 |
| Breen Legacy Academy Ltd | London | 2022 |
| Breen Sport Horses Limited | Salisbury | 2012 |
| Breen's Gym Ltd | Halstead | 2024 |
| Breeny LEE Ltd | Cardiff | 2019 |