| BP Pro Ltd | London | 2022 |
| BPI Group Ltd | London | 2019 |
| BPL Property Care Homes Limited | Birmingham | 2018 |
| BQK Limited | London | 2020 |
| BR Number Holdings Ltd | Dudley | 2017 |
| BR Pro Health Limited | London | 2015 |
| Braemar Care Limited | Leeds | 2025 |
| Bram Health Care Group Limited | Oldbury | 2022 |
| Branch Fire Limited | London | 2023 |
| Branches Day Opportunities Ltd | Stourport-On-Severn | 2019 |
| Brandon Consulting Limited | | 2004 |
| Brandon Griffiths TM Ltd | Doncaster | 2024 |
| Brandon Wong Financial Services Limited | Manchester | 2014 |
| Bravespace Limited | Leigh-On-Sea | 2022 |
| BRAVO2 Fire Protection Ltd | Glasgow | 2023 |
| Bread for Orphans Limited | Birmingham | 2022 |
| Breaking Better UK Limited | Bromley | 2022 |
| Breckland Leisure Limited | Chorley | 2002 |
| Bremcare Ltd | London | 2018 |
| Brentford Voice CIC | Brentford | 2019 |
| Bri&Ps Care Ltd | Grays | 2025 |
| Bridge a GAP Ltd | Inverness | 2017 |
| Bridge IT Consulting Ltd | Stamford Bridge | 2019 |
| Bridge of Care Limited | Hampton Wick | 2023 |
| Bridge Together Ltd | Newark | 2019 |
| Bridgeman Sports Rehabilitation Ltd | Cheam | 2025 |
| Bridgeway Solution Social Care Services Limited | Northampton | 2025 |
| Bridging Brains CIC | Birmingham | 2024 |
| Bridging Diversity GAP Ltd | London | 2025 |
| Bridgwater Health Limited | Bishops Lydeard | 2022 |
| Brielle Social Care Ltd | Liverpool | 2017 |
| Brier Homecare Ltd | Nottingham | 2023 |
| Brigantes Consulting Limited | Bournemouth | 2014 |
| Brigantes International Limited | Bournemouth | 2022 |
| Briggaid Limited | Preston | 2019 |
| Brighouse Hypnotherapy Ltd | Brighouse | 2026 |
| Bright Dale Ltd | East Boldon | 2025 |
| Bright Erra Tradings Private Limited | Oldham, United Kingdom | 2026 |
| Bright Fire Services Ltd | Romford | 2016 |
| Bright Minds Therapy Ltd | London | 2025 |
| Bright Quays Limited | Corby | 2025 |
| Bright Sanctum Ltd | Ilford | 2026 |
| Bright Social Care Ltd | London | 2025 |
| Brighter Futures for Children Limited | Reading | 2018 |
| Brighter Hope Housing CIC | Birmingham | 2024 |
| Brighter Moments CIC | Coventry | 2023 |
| Brighter Roots CIC | Wigan | 2026 |
| Brighter Stays Limited | Hitchin | 2021 |
| Brilliance Care Ltd | Hayes | 2023 |
| Brilliant Consulting and Training Ltd | Coalville | 2024 |
| Brillon Group Limited | Gillingham | 2021 |
| Brimstone Global Ltd | Chatham | 2019 |
| Brimstone Site Investigation Ltd | Chatham | 2016 |
| Bring a Smile on Every Face Initiative Ltd | London | 2021 |
| Briscoe Client Servicing Ltd | Wallasey | 2024 |
| Bristol Channel Swimming Ltd | Swansea | 2022 |
| Bristowe Fire Ltd | Southampton | 2019 |
| Brit Alliance Solutions Ltd | London | 2024 |
| Britannia Awards Ltd | London | 2021 |
| Britin Ltd | Aberdeen | 2017 |
| British Approvals for Fire Equipment Limited | Gloucestershire | 2025 |
| British Association of Sport Rehabilitators and Athletic Therapy | Stockport | 2025 |
| British Automatic Fire Sprinkler Association Limited | Walsall | 1974 |
| British Fire Advisory Services Limited | Maidstone | 2000 |
| British Firefighter Challenge C.I.C. | Leicester | 2020 |
| British Nuclear Cardiac Society Limited | Norwich | 2023 |
| British Sauna Society Ltd | London | 2025 |
| British Tamil Language Examination Board CIC | Rugby | 2024 |
| British Veterans Enterprise Ltd | Aylesford | 2025 |
| Brits Healthcare Ltd | Oldham | 2023 |
| Britsafe Qualifications UK Limited | Ilford | 2023 |
| Britz Global Limited | Hatfield | 2022 |
| Brnd Fire Solutions Ltd | Basingstoke | 2024 |
| Broadberry Care Services Ltd | Walton-On-Thames | 2026 |
| Broadcasting and Consultancy Services Limited | London | 2004 |
| Broadway Care Limited | Gillingham | 2022 |
| Broadway Hall Limited | Cardiff | 2023 |
| Brock Allen Ltd | Coalville | 2025 |
| Brodman Limited | London | 2017 |
| Broken Whispers Community Interest Company | Raynes Park | 2020 |
| Brompton Well Being Ltd | London | 2017 |
| Bronzford Care Ltd | London | 2024 |
| Brooke View Limited | Hatfield | 2018 |
| Brooks Care Angels Ltd | Hengoed | 2021 |
| Brooks Central Ltd | London | 2023 |
| Brooks Fire Protection Ltd | Nottingham | 2022 |
| Bros Healthcare Solutions Ltd | Rayleigh | 2023 |
| Brostem Medical Limited | Halesowen | 2022 |
| Brown Health Ltd | Heanor | 2020 |
| Brown's Care Consultancy Ltd | Leicester | 2025 |
| Brownlea and Associates Limited | Leeds | 2026 |
| Browns Safety Services Limited | Stockton-On-Tees | 2019 |
| Browtiful Scotland & Clinical Care Limited | Glasgow | 2023 |
| Brulimar (Optical) Ltd | Manchester | 2025 |
| Brunwin Healthcare Ltd | Peterborough | 2024 |
| Bruprofitnessmassage Ltd | Arnold | 2026 |
| Bryant Care Group Limited | Ormskirk | 2025 |
| Brybird Homecare (Norfolk) Ltd | Snetterton | 2025 |
| Brybird Homecare Limited | Norfolk | 2024 |
| Bryn Bashford Fire Safety Limited | Fareham | 2019 |