| Bbhall Enterprises Ltd | Wholesale & retail | 2024 |
| BCE Northern Limited | Construction | 2011 |
| Bcfa Property Limited | Real estate | 2023 |
| Bconnected Ltd | Health & social care | 2020 |
| BCR Entertainments Limited | Arts & recreation | 2012 |
| BCR Gjag Ltd | Education | 2003 |
| BCR Seminary | Education | 2022 |
| Bcuris Ltd | Professional & scientific | 2018 |
| BD Media Solutions Ltd | Information & communication | 2025 |
| BD Solutions Ltd | Professional & scientific | 2026 |
| BDD77 Ltd | Health & social care | 2022 |
| Bdet Enterprise Ltd | Hospitality | 2020 |
| BDI Assets Limited | Real estate | 2021 |
| BDI Renovations Limited | Construction | 2025 |
| BE Home Investments Ltd | Real estate | 2016 |
| BE Property Management LLP | | 2005 |
| Be-Mazel Ltd | Extraterritorial | 2015 |
| Be-Tew Property Limited | Real estate | 2008 |
| Beacon Cars (NE) Limited | Transport & logistics | 2024 |
| Beacon Creative Limited | Professional & scientific | 2002 |
| Beacon Financial Planning Limited | Administrative & support | 2025 |
| Beaconsfield Property Investments Limited | Real estate | 2019 |
| Bealim Signs Limited | Manufacturing | 2006 |
| Beam Technology Solutions Limited | Information & communication | 2016 |
| Beamish Construction NE Limited | Construction | 2021 |
| Beanbag Accountancy Ltd | Professional & scientific | 2022 |
| Beanie BUN Ltd | Manufacturing | 2022 |
| Bear With US Ltd | Education | 2023 |
| Beate Ltd | Real estate | 2020 |
| Beaufront Business Park LLP | | 2014 |
| Beauty Box by Jade Ltd | Other services | 2019 |
| Beauty Online Limited | Wholesale & retail | 2024 |
| Beauty Within (NE) Ltd | Other services | 2020 |
| Beaver Realty Ltd | Real estate | 2024 |
| Beck View Management Company Limited | Real estate | 2022 |
| Beckwith & Hanlon Consulting Engineers Limited | Professional & scientific | 2021 |
| Becrow Ltd | Real estate | 2019 |
| Bede and Cuthbert Developments Limited | Construction | 2016 |
| Bede Consulting Limited | Administrative & support | 2006 |
| Bede Homes (Shotley Bridge) Limited | Construction | 2021 |
| Bede Homes (Yarm) Limited | Construction | 2021 |
| Bede Homes Limited | Construction | 2016 |
| Beech Studio Limited | Other services | 2023 |
| Beechwood Accounting NE Ltd | Professional & scientific | 2020 |
| Beechwood Holiday Lets Ltd | Hospitality | 2021 |
| Beecountants Ltd | Professional & scientific | 2017 |
| Beeliked Media Ltd | Information & communication | 2009 |
| Beeseene Ltd | Wholesale & retail | 2025 |
| Beetle About Ltd | Extraterritorial | 2022 |
| BEH Building Ltd | Construction | 2022 |
| BEH Commercial Ltd | Real estate | 2020 |
| BEH Investments Limited | Real estate | 2015 |
| BEH Prop Ltd | Real estate | 2022 |
| BEH Property Management Ltd | Extraterritorial | 2012 |
| Beit Midrash Gavoa Ltd | Other services | 2021 |
| Beiyang Fleet Heritage Development Ltd | Arts & recreation | 2025 |
| Bekett Technologies Ltd | Information & communication | 2025 |
| BEL Design & Building Ltd | Construction | 2010 |
| Bell Business Centres Ltd | Real estate | 2024 |
| Bell Business Parks Ltd | Construction | 2022 |
| Bell Capital Group Ltd | Financial services | 2020 |
| Bell Capital Investments Ltd | Professional & scientific | 2020 |
| Bell Estate Agents Limited | Real estate | 2007 |
| Bell Holiday Homes Ltd | Hospitality | 2021 |
| Bell Mortgage Solutions Ltd | Financial services | 2023 |
| Bell Munro Consulting (North East) Ltd | Professional & scientific | 2005 |
| Bell Property Lettings Limited | Real estate | 2012 |
| Bell Residential Properties Ltd | Real estate | 2021 |
| Bell Retail Properties Ltd | Real estate | 1985 |
| Bell Truck Sales Limited | Wholesale & retail | 1973 |
| Bella's Beauty House Limited | Other services | 2026 |
| Bellary Consulting Ltd | Information & communication | 2013 |
| Belle Dale Developments Ltd | Construction | 2020 |
| Belle Deane Books Ltd | Information & communication | 2026 |
| Belle VUE Commercial Limited | Hospitality | 2017 |
| Belle VUE Estates Limited | Real estate | 2004 |
| Belle VUE Estates Sales Limited | Real estate | 2016 |
| Belle VUE Motors Limited | Wholesale & retail | 2008 |
| Belle VUE Portfolio Ltd | Real estate | 2019 |
| Bellgrave Interiors Limited | Construction | 2022 |
| Belltex Ltd | Extraterritorial | 2023 |
| Bellus Amor Ltd | Wholesale & retail | 2018 |
| Bellydance NOW Ltd | Arts & recreation | 2012 |
| Belmus Limited | Wholesale & retail | 2021 |
| Belsize Energy Limited | Other services | 2018 |
| Belta Bargains Ltd | Wholesale & retail | 2024 |
| Belta Bulk Ltd | Wholesale & retail | 2025 |
| Belta Spice Ltd | Hospitality | 2011 |
| Belvedere Commercial and Residential Ltd | Administrative & support | 2020 |
| Belvedere Services International Limited | Administrative & support | 2025 |
| BEN Hines Photo Ltd | Professional & scientific | 2020 |
| BEN Moody Limited | Professional & scientific | 2016 |
| Benchmark Installations Ltd | Construction | 2015 |
| Benclin Ltd | Arts & recreation | 2020 |
| Bengal Curry House Ltd | Hospitality | 2019 |
| Benoli Group Limited | Financial services | 2020 |
| Benoli Wholesale Limited | Wholesale & retail | 2005 |
| Bensham Chippy Ltd | Hospitality | 2025 |
| Bensham Estates Ltd | Real estate | 2023 |
| Bensham Leisure Ltd | Hospitality | 2018 |