| BE Centred CIC | Health & social care | 2022 |
| BE More Visible Limited | Professional & scientific | 2022 |
| Be-Wright Limited | Construction | 2003 |
| Beacon Apps Ltd | Information & communication | 2017 |
| Beacon Global Enterprises Ltd | Wholesale & retail | 2025 |
| Beam Sweepers UK Ltd | Other services | 2018 |
| Beaman Developments Limited | Administrative & support | 2014 |
| Beaman Fascias & Roofing Limited | Administrative & support | 2007 |
| Beaman Holdings Limited | Administrative & support | 2020 |
| Beaman Maintenance LLP | | 2014 |
| Beas Knees Pressure Washing Ltd | Administrative & support | 2024 |
| Beat the Impossible Ltd | Information & communication | 2025 |
| Beauteous Aesthetics Limited | Other services | 2022 |
| Beautific Nails Limited | Other services | 2020 |
| Beauty Brokers Limited | Administrative & support | 2012 |
| Beautybloom Ltd | Wholesale & retail | 2025 |
| Beaux Estates Limited | Real estate | 2024 |
| Beaver Property Ltd | Real estate | 2017 |
| Because of Alice Ltd | Wholesale & retail | 2020 |
| Bedford Lifting Solutions Ltd | Construction | 2026 |
| BEE Cosy Conservatory Insulation Ltd | Construction | 2025 |
| BEE Lighting Ltd | Manufacturing | 2006 |
| Beechnut Property Investments Ltd | Real estate | 2019 |
| Beeline Safety Limited | Professional & scientific | 2025 |
| Bekim MIF Limited | Manufacturing | 2024 |
| Belisarius Wealth Management Limited | Administrative & support | 2008 |
| Bell of a Partee Ltd | Administrative & support | 2023 |
| Bella Barbershop Ltd | Other services | 2025 |
| Bella Italia Florea Ltd | Hospitality | 2018 |
| Belliscroft Conservation & Restoration Limited | Construction | 2024 |
| Bellmade Properties Ltd | Real estate | 2024 |
| Bellmont Investments Limited | Real estate | 1998 |
| Belmont Construction (Worcestershire) Ltd | Construction | 2019 |
| Belmont Healthcare (Copper Beeches) Limited | Health & social care | 2025 |
| Belmont Healthcare (Edendale) Limited | Administrative & support | 2017 |
| Belmont Healthcare (Haslington) Limited | Administrative & support | 2017 |
| Belmont Healthcare (Lincs) Limited | Financial services | 2026 |
| Belmont Healthcare (Madeira) Limited | Health & social care | 2022 |
| Belmont Healthcare (Murdoch) Limited | Health & social care | 2025 |
| Belmont Healthcare (Wombwell) Limited | Health & social care | 2022 |
| Belmont Healthcare (Woodbury) Limited | Health & social care | 2025 |
| Belmont Healthcare Group 1 Limited | Financial services | 2022 |
| Belmont Healthcare Group 2 Limited | Financial services | 2025 |
| Belmont Healthcare Management Limited | Financial services | 2019 |
| Belmont Healthcare Services Limited | Administrative & support | 2017 |
| Belmont Homecare Services Limited | Health & social care | 2019 |
| Belpar Solutions LP | | 2013 |
| Belvoir&Co Ltd | Wholesale & retail | 2016 |
| Belvox Services Limited | Wholesale & retail | 2023 |
| Bemand Contracts Ltd | Construction | 2005 |
| BEN Wheeler Music Limited | Arts & recreation | 2012 |
| Benchmark Joinery (Midlands 2015) Ltd | Construction | 2015 |
| Benilli Software and Services Limited | Information & communication | 2004 |
| Benjamin SAM Creative Ltd | Manufacturing | 2020 |
| Benjamin Stanley Limited | Real estate | 2007 |
| Bennett Brothers Property Ltd | Real estate | 2025 |
| Bennett Investments Ltd | Financial services | 2026 |
| Bennett's Properties & Investments Ltd | Real estate | 2022 |
| Bennett-Mahler Limited | Manufacturing | 1983 |
| Bennetts Burners Limited | Administrative & support | 2017 |
| Bens Youth and Community Groups CIC | Other services | 2019 |
| Bentley Consulting Services (UK) Limited | Information & communication | 2011 |
| Bentley Medical Consultants Limited | Health & social care | 2016 |
| Beoley After School Interest Club Limited | Education | 1999 |
| Beoley Hall 1992 Limited | Real estate | 1992 |
| Beoley Lodge Limited | Hospitality | 2013 |
| Beoley Mill Management Limited | Administrative & support | 1987 |
| Beoley MOT Centre Ltd | Wholesale & retail | 2021 |
| Berkeley Financial Consultancy Limited | Administrative & support | 2008 |
| Berkeswell Finance Limited | Professional & scientific | 2023 |
| Bernwode Research Limited | Real estate | 2017 |
| Berries and Beef Ltd | Agriculture & fishing | 2025 |
| Berrowhill Builders Ltd | Construction | 2022 |
| Berryboysuk Ltd | Hospitality | 2025 |
| Berrykin Marketing Ltd | Information & communication | 2026 |
| Berserkboygames Ltd | Arts & recreation | 2017 |
| Bespoke 3 Fabrications Ltd | Manufacturing | 2022 |
| Bespoke Fitted Wardrobes Ltd | Manufacturing | 2022 |
| Bespoke Interiors by TOM Wheeler Ltd | Manufacturing | 2022 |
| Best Choice Corporation Limited | Administrative & support | 2010 |
| Best Knife Limited | Hospitality | 2018 |
| Best Shizzle Limited | Wholesale & retail | 2003 |
| Bests Jamaican Cuisine Ltd | Hospitality | 2022 |
| Beta Tree Solutions Ltd | Information & communication | 2011 |
| Better Together Services Ltd | Health & social care | 2023 |
| Bettr Edge Ltd | Information & communication | 2026 |
| Bev's Salon Limited | Other services | 2020 |
| BEW Construction Limited | Construction | 2017 |
| Beyondbarrierspathways CIC | Education | 2026 |
| Bgmdesigns Limited | Professional & scientific | 2019 |
| BHM Energy Ltd | Energy | 2019 |
| BHR Property Limited | Real estate | 2013 |
| BHX Euro Transport Ltd | Transport & logistics | 2025 |
| BID and Bargain Ltd | Wholesale & retail | 2026 |
| Bidsid Developments Ltd | Real estate | 2018 |
| Bidsid Ltd | Real estate | 2018 |
| Big Bednall Commerce Ltd | Wholesale & retail | 2024 |
| Big Kidds Collectables Ltd | Wholesale & retail | 2026 |
| Bigstuff Enterprises Limited | Education | 2006 |
| Bincy Linu Limited | Administrative & support | 2016 |