| Benefit Services Ltd | Waltham Abbey | 2018 |
| Benfield Fire Safety Ltd | Eastleigh | 2015 |
| Benfield Marketing Limited | Wimborne | 2024 |
| Benjaminsfeast.Com Limited | Halstead | 2025 |
| Benjo Healthcare Limited | Doncaster | 2024 |
| Benksurg Healthcare Limited | Grantham | 2023 |
| Bennett Business Partnerships Limited | Addlestone | 2022 |
| Bentley Fire Protection Ltd | Benfleet | 2023 |
| Benz Sarah Ryan Ltd | Altrincham | 2018 |
| BEP Consultancy Ltd | Watermill Way | 2023 |
| Berbs Clinique Training Academy Ltd | Norwich | 2025 |
| Beriyth Healthcare Ltd | Gravesend | 2024 |
| Berkshire Home Care Limited | Reading | 2025 |
| Bermondsey Street Runners CIC | London | 2024 |
| Berwick Town Team Ltd | Berwick-Upon-Tweed | 2013 |
| Bespoke Care and Support Services Plymouth Ltd | Plymouth | 2020 |
| Bespoke Fire & Security Solutions Ltd | Worksop | 2018 |
| Bespoke Safety Limited | Tupsley | 2008 |
| Best Active Care Limited | London | 2024 |
| Best Advisers Ltd | Wadebridge | 2022 |
| Best Care Matters Ltd | Erith | 2023 |
| Best in Home Healthcare Limited | Leeds | 2023 |
| Best MMT Limited | Walsall | 2024 |
| Best Quality Care Ltd | Hook | 2018 |
| Best Security Limited | St Helens | 2006 |
| BESTCARE4U1 Ltd | London | 2025 |
| Bestfield Care Limited | Milton Keynes | 2022 |
| Bestsolutionshealthcare Ltd | Wakefield | 2019 |
| Beta Haven Care Ltd | Banbury | 2024 |
| Betaminds C.I.C. | London | 2020 |
| Betelnut Community Centre CIC | Enfield | 2023 |
| Beth Slade Safety Ltd | Barnstaple | 2025 |
| Bethel Assemblies of GOD Church CIC | Chelmsford | 2023 |
| Bethel Flower Ltd | Milton Keynes | 2024 |
| BETHMAK247 Care Limited | Swindon | 2024 |
| Bethzatha Care Home Ltd | Hatfield | 2022 |
| Betinah Ltd | Birmingham | 2020 |
| Better Call Millsey Ltd | Langport | 2022 |
| Better Choice Healthcare Limited | Wakefield | 2022 |
| Better Ears Ltd | Pinner | 2023 |
| Better Rehabilitation UK Limited | London | 2024 |
| Better Support Staffing Ltd | London | 2020 |
| Betterlife Health & Social Care Training Services Ltd Ltd | Bristol | 2021 |
| Bettison Associates Limited | Bracknell | 2003 |
| Beumée Group Ltd | Eastbourne | 2025 |
| BEV Care Health Limited | Birmingham | 2025 |
| Bevan Limited | Hull | 2019 |
| BEX &Co Ltd | London | 2011 |
| Bexley and Greenwich Healthcare Ltd | Chertsey | 2022 |
| Beyond the File Ltd | Lincoln | 2025 |
| Beyond Tomorrow Ltd | London | 2022 |
| Beyond Visas Ltd | Tunbridge Wells | 2022 |
| BFP Ltd | Harlow | 2015 |
| Bfpg Limited | London | 2016 |
| BFS Fire Solutions Ltd | Wimborne | 2026 |
| Bgseba Ltd | Grays | 2021 |
| Bgtm Ltd | Thetford | 2019 |
| Bhabrab Ltd | Leeds | 2024 |
| BHT Fire Protection Services Ltd | Bromley | 2004 |
| Bido (International) Ltd | London | 2022 |
| Biffa Care Services Limited | Belvedere | 2025 |
| Biffa Healthcare Solutions Ltd | Reading | 2025 |
| Bigfem IT & Business Management Limited | Harlow | 2025 |
| Bility Healthcare Ltd | Southampton | 2025 |
| Binjo Ltd Ltd | Bradford | 2025 |
| Bioace Health Limited | London | 2025 |
| Biofusion Care Ltd | Dewsbury | 2025 |
| Biologicx Limited | Stoke-On-Trent | 2025 |
| Birchwood Childrens Services Limited | Blackburn | 2019 |
| Birmingham Children's Trust Community Interest Company | Birmingham | 2017 |
| Birmingham Fire and Safety Limited | Birmingham | 2016 |
| Birmingham Lgbt | Birmingham | 2010 |
| Birmingham Social & Cultural Organisation (UK) CIC | Birmingham | 2023 |
| Bisf Ltd | London | 2025 |
| Bishba Lifestyle Ltd | Walsall | 2024 |
| Bishop Medicals Limited | Chatham | 2023 |
| Bishops Itchington Community Project | Southam | 2010 |
| Bismac Ltd | London | 2020 |
| Biznify Prime Solutions Limited | Bristol | 2024 |
| BK Close Protection and Security Service Ltd | London | 2022 |
| BK Compassionate Care Ltd | Bradford | 2025 |
| BKB Fire Risk Consultants Ltd | Amlwch | 2019 |
| BKD Safety Ltd | Bexley | 2023 |
| Black & Gold Fire Safety and Electrical Services Ltd | Aylesbury | 2020 |
| Black Autism Manchester CIC | Bury | 2023 |
| Black Create Connect Ltd | London | 2022 |
| Black Hawk Defence Ltd | Gloucester | 2026 |
| Black Health Initiative (BHI) | Leeds | 1996 |
| Black Isle Safety Ltd | Inverness | 2024 |
| Black Sciensus C.I.C. | Southwold | 2025 |
| Black Swan Ltd | London | 2025 |
| Blackbox Mindset Performance Ltd | Heywood | 2024 |
| Blackfoot Consulting Ltd | Liskeard | 2009 |
| Blacklands Fire Limited | Bexhill-On-Sea | 2015 |
| Blackmore Safety Ltd | Grays | 2025 |
| Blackpool Reform Jewish Congregation | Blackpool | 2012 |
| Blacksmith Health Care Limited | Chatham | 2023 |
| Blackwater Fire Solutions Limited | Halstead | 2025 |
| Blackwood HR Limited | Worcestershire | 2006 |
| Blaise Fire Safety Limited | London | 2024 |