| BBS Electrical Limited | Construction | 2021 |
| BC Designs (INT) Limited | Wholesale & retail | 2017 |
| BCF Consulting Limited | Information & communication | 2025 |
| BCN Properties Limited | Real estate | 2019 |
| BD Whittel Ltd | Construction | 2023 |
| BDW Contractors Limited | Construction | 2010 |
| BE -Dazzled KOI Ltd | Wholesale & retail | 2024 |
| Beaconpoint Systems Ltd | Wholesale & retail | 2025 |
| Beaconsfield House RTM Company Limited | Households | 2024 |
| Bead & Shotblasting Limited | Manufacturing | 1995 |
| Beardy Dave Ltd. | Extraterritorial | 2016 |
| Beasley Crane Rigging Services Limited | Construction | 2024 |
| Beau Renovations Ltd | Construction | 2026 |
| Beau Skin & Beauty Ltd | Other services | 2012 |
| Beaujo's Limited | Hospitality | 2019 |
| Beaumont Care Limited | Health & social care | 2018 |
| Beautiful Boutique Linens Limited | Wholesale & retail | 2026 |
| Beauty & Travel Limited | Wholesale & retail | 2020 |
| Beauty and the Bakery Limited | Hospitality | 2023 |
| Beauty ODP Limited | Health & social care | 2016 |
| Beauty Training Academy Yorkshire Ltd | Education | 2019 |
| Beauty Training Direct Limited | Education | 2018 |
| Beck Lane Investments Limited | Arts & recreation | 2008 |
| Beckett Medical Limited | Health & social care | 2009 |
| Becky Barraclough Beauty Limited | Other services | 2017 |
| BED Kings Online Limited | Wholesale & retail | 2017 |
| BED Shop Halifax Ltd | Wholesale & retail | 2026 |
| Bedford & Snell Limited | Real estate | 2018 |
| BEE Spice Ltd | Hospitality | 2025 |
| BEE Thriving Ltd | Wholesale & retail | 2026 |
| BEE YOU Journal Ltd | Information & communication | 2019 |
| Beech Gardens (MGT) Company Limited | Real estate | 2020 |
| Beech Nook Ltd | Hospitality | 2025 |
| Beechwood Dental Practice Ltd | Health & social care | 2010 |
| Beehive Accommodation Ltd | Real estate | 2022 |
| Beehive Property Developers Ltd | Real estate | 2023 |
| Beerjet UK Limited | Manufacturing | 2016 |
| Beese Property Management Ltd | Real estate | 2019 |
| Beeze Rehabilitation Limited | Health & social care | 2015 |
| Beldenn Limited | Professional & scientific | 2022 |
| Belgrave Park Limited | Financial services | 2021 |
| Bell Hall Garage Ltd | Wholesale & retail | 2013 |
| Bell Trucks (Holdings) Limited | Wholesale & retail | 2006 |
| Belladawe Ltd | Construction | 2024 |
| Bellane Properties Limited | Transport & logistics | 1991 |
| Bellane Property Management Limited | Transport & logistics | 2020 |
| Bellfront North Road Development Ltd | Construction | 2022 |
| Bellfront Properties Limited | Real estate | 2020 |
| Bells Tree Surgeons Limited | Agriculture & fishing | 2002 |
| Belmont Construction (Yorkshire) Limited | Construction | 1999 |
| Belmont Consultancy Ltd | Professional & scientific | 2022 |
| Belrom Properties Ltd | Real estate | 2025 |
| Belvedere Farm Lettings Ltd | Hospitality | 2022 |
| Belvedere Halifax Limited | Hospitality | 2018 |
| Belvoir Dalby Ltd | Wholesale & retail | 2025 |
| Bemedrive Limited | Transport & logistics | 2023 |
| BEN Harris Anaesthesia Limited | Health & social care | 2026 |
| BEN Thornber & Sons (Holdings) Ltd | Financial services | 2021 |
| BEN Thornber & Sons Ltd | Construction | 2017 |
| Benchmark Builders Yorkshire Ltd | Construction | 2021 |
| Benjamin Spencer Design Limited | Professional & scientific | 2023 |
| Bennett Commercial Ltd | Financial services | 2018 |
| Benson & Mcadam Properties Ltd | Real estate | 2021 |
| Benson & Ryan Electrical Ltd | Other services | 2021 |
| Bentley EMP Limited | Wholesale & retail | 2022 |
| Beny Sports Co.Uk Limited | Wholesale & retail | 2002 |
| Berimar Limited | Construction | 1997 |
| Berl Ltd | Professional & scientific | 2021 |
| Bermerside House Management Limited | Households | 2001 |
| Bertie 2026 Ltd | Hospitality | 2026 |
| Bertola Home Studio Ltd | Manufacturing | 2024 |
| Bespoke Clinical Services Ltd | Professional & scientific | 2019 |
| Bespoke Conversions Limited | Construction | 2019 |
| Bespoke Enviro Build Ltd | Construction | 2019 |
| Bespoke Granite Ltd | Manufacturing | 2022 |
| Bespoke Heating Solutions Ltd | Construction | 2024 |
| Bespoke Hideouts Ltd | Manufacturing | 2021 |
| Bespoke Industrial Ltd | Wholesale & retail | 2025 |
| Bespoke Workspaces Ltd | Construction | 2023 |
| Beststuffshopuk Ltd | Wholesale & retail | 2024 |
| Betamedia UK Limited | Information & communication | 2003 |
| Beth Furby & Associates Ltd | Professional & scientific | 2023 |
| Betta Webs Limited | Information & communication | 2023 |
| BEV Drury Ltd | Information & communication | 2009 |
| Bevel Plant Hire & Trade Ltd | Wholesale & retail | 2019 |
| Beverley (Leeds) Limited | Extraterritorial | 2001 |
| Beverley Lodge Limited | Real estate | 2024 |
| Beyond Balance Solutions Limited | Arts & recreation | 2017 |
| Beyond Edge Management Limited | Professional & scientific | 2018 |
| Beyond Global Ltd | Administrative & support | 2018 |
| Beyond UK Consultancy Ltd | Professional & scientific | 2018 |
| BEZ Driving School Ltd | Education | 2024 |
| BEZ Holdings Ltd | Financial services | 2021 |
| BFH Brands Ltd | Wholesale & retail | 2024 |
| Bfsa Consulting Limited | Education | 2024 |
| Bfusco Ltd | Hospitality | 2025 |
| BGH Motors Ltd | Wholesale & retail | 2022 |
| BGL Limited | Wholesale & retail | 2025 |
| BHC Group AC Limited | Professional & scientific | 2024 |
| BHC Properties Limited | Administrative & support | 2012 |