| Branston 1964 Limited | Extraterritorial | 2014 |
| Branston Care Services Ltd | Health & social care | 2024 |
| Branston Consultancy Services Ltd | Professional & scientific | 2008 |
| Branston Golf & Country Club Limited | Hospitality | 1974 |
| Branston Investments Limited | Real estate | 1950 |
| Branston Kitchens and Bathrooms Ltd | Manufacturing | 2025 |
| Branston Road Podiatry Ltd | Health & social care | 2022 |
| Breakfast Club Limited | Hospitality | 2020 |
| Breathe Management Limited | Professional & scientific | 2023 |
| Brereton Landscapes Limited | Administrative & support | 2003 |
| Bretby Hall Freeholders Limited | Households | 2006 |
| Bretby Hall Management Company Limited | Households | 2000 |
| Bretby Properties Limited | Real estate | 1996 |
| Bretby Services Limited | Wholesale & retail | 2002 |
| Brewer Services UK Ltd | Education | 2023 |
| Brewers Pressure Cleaning Limited | Administrative & support | 2023 |
| Brian Drage Water Treatment Consultant Limited | Water & waste | 2012 |
| Bridge 15 Property Development Ltd | Construction | 2021 |
| Bridge Park Group Limited | Financial services | 2017 |
| Bridge Street Management Limited | Real estate | 1988 |
| Bridge TRE Ltd | Administrative & support | 2024 |
| BRIDGE2FUTURE Ltd | Health & social care | 2016 |
| Bridges Consulting Ltd | Administrative & support | 2024 |
| Bright Beginnings Day Nursery Ltd | Health & social care | 2010 |
| Bright Beginnings Family Hub CIC | Education | 2018 |
| Bright Fit Ltd | Construction | 2022 |
| Bright Signs UK Limited | Professional & scientific | 2024 |
| Brightfish Capital Projects Limited | Construction | 2021 |
| Brightfutures UN- Ltd | Other services | 2005 |
| Brightmore Electrical Ltd | Construction | 2025 |
| Brighton Road Stores Limited | Wholesale & retail | 2017 |
| Brikulis Ltd | Construction | 2018 |
| Brilliant Bookings Limited | Information & communication | 2016 |
| Brinja UK Ltd | Information & communication | 2025 |
| Brisco Security Ltd | Financial services | 2025 |
| Brit SEC Limited | Administrative & support | 2011 |
| Brite Sparkz Limited | Administrative & support | 2024 |
| Britney Lewis Estate Agents Ltd | Real estate | 2026 |
| Brizlincote Car Sales Limited | Wholesale & retail | 2017 |
| Brizlincote Farm Co. Ltd | Agriculture & fishing | 2025 |
| Brizlincote Properties Ltd | Construction | 2026 |
| BRO Transport Ltd | Transport & logistics | 2015 |
| Broadleaf Media Limited | Professional & scientific | 1998 |
| Broadway Property Ltd | Real estate | 2016 |
| Bromley Building & Joinery Ltd | Construction | 2023 |
| Bromley Properties Ltd | Construction | 2024 |
| Bromley Shipping & Trading Ltd. | Transport & logistics | 2020 |
| Broome Manor Limited | Households | 1999 |
| Brown & Earnshaw Decorators Limited | Construction | 2011 |
| Browns Building Solutions Ltd. | Construction | 2016 |
| Brownz Salon Ltd | Real estate | 2020 |
| Brumbeergirl Limited | Professional & scientific | 2017 |
| Brynley Knight Ltd | Professional & scientific | 2025 |
| BS Traders INT Limited Limited | Wholesale & retail | 2025 |
| Btay Property Group Ltd | Real estate | 2024 |
| BTB Roofing Limited | Construction | 2012 |
| BTC Trans Ltd | Transport & logistics | 2025 |
| Bubble Media Ltd | Financial services | 2019 |
| Bubblelicious T Ltd | Hospitality | 2021 |
| Buckingham Investigation Services Limited | Professional & scientific | 2006 |
| Buildings and Sheds Limited | Construction | 2025 |
| Buildzy Limited | Wholesale & retail | 2018 |
| Bullock Holdings Ltd | Professional & scientific | 2017 |
| Burrito Bear Limited | Hospitality | 2023 |
| Burton & District Mind | Health & social care | 2010 |
| Burton 0820 Ltd | Hospitality | 2017 |
| Burton Abbey Developments Limited | Real estate | 2015 |
| Burton Blend Cafe Ltd | Hospitality | 2025 |
| Burton Boxing and Martial Arts Limited | Education | 2022 |
| Burton Bridge Brewery Limited | Manufacturing | 2002 |
| Burton Building Control Ltd | Professional & scientific | 2015 |
| Burton Car Sales Ltd | Wholesale & retail | 2025 |
| Burton Carp Tackle Ltd | Wholesale & retail | 2012 |
| Burton Catering Limited | Hospitality | 2026 |
| Burton Chiropody & Podiatry Centre Limited | Health & social care | 2004 |
| Burton Computers Limited | Information & communication | 2009 |
| Burton Construction Services Ltd | Construction | 2017 |
| Burton Counselling and Psychotherapy Ltd | Health & social care | 2022 |
| Burton Damproofing and Wood Preservation Services Limited | Other services | 1983 |
| Burton Drinks Limited | Wholesale & retail | 2018 |
| Burton Driving School Ltd | Education | 2019 |
| Burton Electrical & Plumbing Solutions Ltd | Manufacturing | 2024 |
| Burton Haulage Service Limited | Transport & logistics | 2019 |
| Burton Hockey Club Limited | Arts & recreation | 2015 |
| Burton Industrial Engraving Limited | Professional & scientific | 2003 |
| Burton Inns Limited | Professional & scientific | 1985 |
| Burton Logistics Limited | Transport & logistics | 2011 |
| Burton Market Ltd | Wholesale & retail | 2025 |
| Burton Mini Market Ltd | Wholesale & retail | 2024 |
| Burton Minibus Limited | Transport & logistics | 2023 |
| Burton Mobile Carwash Ltd | Wholesale & retail | 2025 |
| Burton Motor Services Ltd | Wholesale & retail | 2024 |
| Burton Motor Workshop Limited | Wholesale & retail | 1998 |
| Burton Motors Services Ltd | Wholesale & retail | 2016 |
| Burton Nails Spa Ltd | Other services | 2018 |
| Burton Pizza Limited | Hospitality | 2021 |
| Burton Polski Minimarket Ltd | Wholesale & retail | 2023 |
| Burton Precast and Lifting Specialists Ltd | Construction | 2020 |
| Burton Pride C.I.C. | Arts & recreation | 2024 |
| Burton Ritz Ltd | Hospitality | 2019 |