| Bergamot Properties Limited | Real estate | 2023 |
| Berhe Aiba Properties Ltd | Real estate | 2016 |
| Berisford Pension Trustee Limited | Financial services | 2025 |
| Berkeley Exploration Limited | Administrative & support | 2006 |
| Berkley Wilkinson Wealth Management Ltd | Financial services | 2017 |
| Berkshire Assets (Brentwood) Limited | Real estate | 2016 |
| Berkshire Assets (Slough) Limited | Real estate | 2015 |
| Berlin Dealz Ltd | Wholesale & retail | 2022 |
| Bernard Interiors (Newcastle) Limited | Extraterritorial | 2010 |
| Bernard Interiors Holding Limited | Financial services | 2025 |
| Bernard Interiors Limited | Professional & scientific | 2008 |
| Bernard Saxon General Insurance Services Limited | Financial services | 1984 |
| Bernard Sparkes Ltd | Information & communication | 2023 |
| Bernhard Schulte Shipmanagement (UK II) Limited | Transport & logistics | 2022 |
| Bernhard Schulte Shipmanagement (UK) Limited | Transport & logistics | 2006 |
| Bernicia Consulting Ltd | Professional & scientific | 2018 |
| Bernicia Marine Consultants Limited | Professional & scientific | 2015 |
| Berro Europe (UK) Ltd | Administrative & support | 2007 |
| Berry Edge (Consett) Management Company Limited | Households | 2004 |
| Berrycells Ltd | Professional & scientific | 2026 |
| Bertbox Limited | Wholesale & retail | 2025 |
| Besafe Windows Limited | Construction | 2008 |
| Bespoke Building and Groundworks UK Ltd | Construction | 2024 |
| Bespoke Building Services North East Limited | Construction | 2014 |
| Bespoke Construction Build UK Ltd | Construction | 2024 |
| Bespoke Management Solutions Limited | Households | 2018 |
| Bespoke Marine Consulting Limited | Professional & scientific | 2024 |
| Bespoke Property Services North East Ltd | Real estate | 2018 |
| Bespoke PUB Management Ltd | Hospitality | 2019 |
| Bespoke Roofing Services North East Ltd | Construction | 2015 |
| Bespoke Signs Limited | Manufacturing | 2015 |
| Bespoke Technical Group Ltd | Arts & recreation | 2024 |
| Besson Street LLP | | 2018 |
| Besson Street Second Member Limited | Financial services | 2018 |
| Best Accounting Services Limited | Professional & scientific | 2021 |
| Best Bite Forest Hall Ltd | Hospitality | 2019 |
| Best Diamonds Car Wash Ltd | Administrative & support | 2018 |
| Best Electronics Newcastle Ltd | Wholesale & retail | 2021 |
| Best Energy Prices Ltd | Other services | 2019 |
| Best Performance for Trading Limited | Wholesale & retail | 2022 |
| Best Properties (Sunderland) Limited | Real estate | 2019 |
| Best Smoke Shop Ltd | Wholesale & retail | 2026 |
| Best Tasty Ltd | Hospitality | 2024 |
| Bestone Premier Ltd | Wholesale & retail | 2024 |
| Besure Business Ltd | Administrative & support | 2019 |
| Beti&Mar Cleaning Ltd | Administrative & support | 2024 |
| Betjeman Mews Management Company Limited | Households | 2004 |
| Better Brickwork Services Limited | Construction | 2026 |
| Better Buyz Ltd | Wholesale & retail | 2022 |
| Better Call SAL Ltd | Construction | 2025 |
| Better Health Limited | Wholesale & retail | 2012 |
| Better Management Services Limited | Extraterritorial | 2012 |
| Better Places Partnerships CIC | Professional & scientific | 2025 |
| Betterorder Limited | Real estate | 1990 |
| Betwixt Therapies Ltd | Other services | 2022 |
| Bevelchoice Limited | Professional & scientific | 1985 |
| Beverley Terrace Management Company Limited | Extraterritorial | 1997 |
| Bewildered Donk Ltd | Professional & scientific | 2020 |
| Bewstar Limited | Construction | 2015 |
| Beyhan&Melih Ltd | Transport & logistics | 2021 |
| Beyond DDC (Design) Limited | Professional & scientific | 2018 |
| Beyond DDC Limited | Construction | 2015 |
| Beyond English Limited | Professional & scientific | 2019 |
| Beyond Events Ltd | Arts & recreation | 2025 |
| Beyond Hire Ltd | Administrative & support | 2025 |
| Beyond Home Healthcare Limited | Health & social care | 2023 |
| Beyond Migration Limited | Information & communication | 2014 |
| Beyond Music Community CIC | Information & communication | 2025 |
| Beyond Music Publishing Limited | Information & communication | 2025 |
| Beyond Overseas Business Services Ltd | Administrative & support | 2016 |
| Beyond Partners Ltd | Professional & scientific | 2020 |
| Beyond Records Ltd | Information & communication | 2021 |
| Beyond the BET CIC | Health & social care | 2025 |
| Beyond Vinyl Ltd | Wholesale & retail | 2017 |
| Beyondminds Initiative CIC | Health & social care | 2026 |
| Beyondminds MZ Limited | Health & social care | 2019 |
| Beyong Holdings Ltd | Arts & recreation | 2018 |
| Beyong Management Ltd | Real estate | 2021 |
| BEZ Barber Ltd | Other services | 2025 |
| Bf&T Property Limited | Real estate | 2017 |
| BFP Property Rentals Ltd | Real estate | 2021 |
| BG Aviation Consulting Ltd | Transport & logistics | 2021 |
| BG Tyres Limited | Wholesale & retail | 2026 |
| BG World Media Ltd | Education | 2025 |
| Bgne Limited | Hospitality | 2026 |
| BH Consultancy Design Ltd | Professional & scientific | 2023 |
| BH Group (Newcastle) Ltd | Real estate | 2015 |
| BH Investments (Newcastle) Ltd | Real estate | 2017 |
| BH Mortgage Services Limited | Financial services | 2016 |
| BH Planning and Design Limited | Professional & scientific | 2017 |
| BH Property (Durham) Ltd | Professional & scientific | 2026 |
| BH Property (Newcastle) Ltd | Professional & scientific | 2015 |
| BH Residential Limited | Real estate | 2016 |
| BH-28 Honing&Repair Ltd Ltd | Construction | 2025 |
| Bharat V Gowardhan Limited | Health & social care | 2015 |
| Bhavana Investments Ltd | Real estate | 2021 |
| Bhavana Limited | Other services | 2010 |
| BHG LLP | | 2008 |
| BHG Tax Advisers Limited | Professional & scientific | 2013 |
| Bhtt Logistics Limited | Wholesale & retail | 2025 |