| Bay Tree House (Hythe) Management Company Ltd | Households | 2023 |
| Bayfair Limited | Information & communication | 1996 |
| Baylaurel Construction Limited | Administrative & support | 2012 |
| Baylisden House Consultancy Limited | Professional & scientific | 2010 |
| Bayliss & Grove Ltd | Professional & scientific | 2025 |
| Bayside Capital Limited | Financial services | 2026 |
| Baytiger Limited | Information & communication | 2007 |
| Bazinov Construction Ltd | Construction | 2020 |
| Bazon Limited | Professional & scientific | 2018 |
| BB2SS Limited | Wholesale & retail | 2025 |
| BBF Autos Limited | Wholesale & retail | 2010 |
| BBP Regeneration Ltd | Construction | 1994 |
| BBS Construct Ltd | Construction | 2025 |
| Bbtc Management Ltd | Administrative & support | 2016 |
| Bccs Holdings Limited | Information & communication | 2026 |
| BCD Associates Ltd | Professional & scientific | 2014 |
| Bclimax Technologies Ltd | Information & communication | 2026 |
| BCS Builders Limited | Construction | 2006 |
| Bdkg Private Ltd | Real estate | 2023 |
| BDL Construction Group Ltd | Construction | 2020 |
| BDM Works Services Limited | Administrative & support | 2018 |
| BE Rails Limited | Construction | 2014 |
| BE Style Limited | Education | 2022 |
| Be-Liv Limited | Professional & scientific | 2023 |
| Beach Beds Tanning Ltd. | Other services | 2024 |
| Beach House Tanning Shop Limited | Other services | 2011 |
| Beach Studios Entertainment Ltd | Information & communication | 2026 |
| Beacon Maritime Ltd | Professional & scientific | 2019 |
| Beadles Coulsdon Limited | Wholesale & retail | 1992 |
| Beadles Dartford Limited | Wholesale & retail | 1915 |
| Beadles Group Limited | Wholesale & retail | 1987 |
| Beadles Maidstone Limited | Wholesale & retail | 1999 |
| Beadles Medway Limited | Wholesale & retail | 1993 |
| Beadles Sidcup Limited | Wholesale & retail | 1948 |
| Beam Whitening Ltd | Other services | 2021 |
| Beandte Limited | Transport & logistics | 2015 |
| Beankeepers Limited | Professional & scientific | 2020 |
| Bear & Bear Property Ltd | Real estate | 2024 |
| Bearded Kitten Ltd | Arts & recreation | 2011 |
| Bearsmor Investments Limited | Real estate | 2020 |
| Bearsmor Ltd | Professional & scientific | 2020 |
| Bearsted Auto Centre Ltd | Wholesale & retail | 2017 |
| Bearsted Barber Ltd | Other services | 2023 |
| Bearsted Construct and Build Limited | Construction | 2021 |
| Bearsted Counselling and Psychotherapy Ltd | Administrative & support | 2020 |
| Bearsted Fish Bar Limited | Hospitality | 2014 |
| Bearsted Football Club Limited | Arts & recreation | 2024 |
| Bearsted Garden Pizza Ltd | Hospitality | 2024 |
| Bearsted Plant & Vehicle Hire Limited | Administrative & support | 2003 |
| Bearsted Scaffolding Limited | Construction | 2014 |
| Bearsted Surfacing Contractors Limited | Construction | 2009 |
| Bearsted Upholsterers Ltd | Other services | 2022 |
| Bearstrong Ltd | Health & social care | 2022 |
| Bearth Limited | Administrative & support | 2021 |
| Beatway Ltd | Transport & logistics | 2019 |
| Beautiful Mind Childcare Limited | Health & social care | 2024 |
| Beauty by Jenny Ltd | Other services | 2024 |
| Beauty Studio Temptation 13 Limited | Other services | 2023 |
| Beauty Theatre Ltd | Other services | 2024 |
| Beauty World Aesthetics Ltd | Other services | 2025 |
| Beaver Lodge Properties Limited | Real estate | 2016 |
| Beaverwood Property Limited | Real estate | 2025 |
| Bebecos Ltd | Transport & logistics | 2020 |
| Beckford Contractors (London) Ltd | Construction | 2024 |
| Becks Services Limited | Administrative & support | 2019 |
| Bedford Court Mansions Limited | Other services | 1988 |
| BEDZ4ZZZZ (Retail) Limited | Wholesale & retail | 2016 |
| BEE Baker Estates Limited | Real estate | 2021 |
| BEE Baker Imports Limited | Wholesale & retail | 2023 |
| BEE Environmental Facilities Services Limited | Other services | 1997 |
| BEE for Bounce Limited | Arts & recreation | 2025 |
| BEE Hive Kent Limited | Financial services | 2024 |
| BEE SPV Property Ltd | Real estate | 2024 |
| Bee's Knees Property Management Ltd | Real estate | 2022 |
| Beech Court (Loose) Management Limited | Households | 2007 |
| Beechwood Community Hall Trust Limited | Arts & recreation | 2008 |
| Beehive & BEA Ltd | Hospitality | 2024 |
| Beer Cafe Limited | Hospitality | 2017 |
| Beer Money Ltd | Wholesale & retail | 2019 |
| Beetroot Media Limited | Information & communication | 2020 |
| Beflic Continental Limited | Health & social care | 2023 |
| Beginners 2 Runners Ltd | Education | 2025 |
| Behind Every Cloud Ltd | Information & communication | 2010 |
| Bekka Solutions Ltd | Construction | 2014 |
| Beko Handling Limited | Wholesale & retail | 2009 |
| Bekoe Consultancy Limited | Professional & scientific | 2019 |
| Belal Halal Meat and Groceries Ltd | Wholesale & retail | 2023 |
| Belash Kent Ltd | Hospitality | 2019 |
| Belbroughton Indian Eatery Ltd | Hospitality | 2019 |
| Belgravia Place Management (Maidstone) Limited | Real estate | 2015 |
| Belinda Demirbasa Limited | Construction | 2019 |
| Bell Agricultural Limited | Wholesale & retail | 1998 |
| Bell Placements Ltd | Administrative & support | 2016 |
| Bella Best House RTM Company Limited | Households | 2024 |
| Bella Pizza E Pasta Limited | Hospitality | 1998 |
| Bella Pizzaria Limited | Hospitality | 2020 |
| Bellagius-Shop Ltd | Wholesale & retail | 2020 |
| Bellamy Wallace Partnership LLP | | 2007 |
| Belle Recruiting Ltd | Administrative & support | 2025 |
| BELLE2MOI Ltd | Other services | 2019 |