| Bello Hull Limited | Wholesale & retail | 2015 |
| Belmont Garage Limited | Wholesale & retail | 2024 |
| Belvin Afro Fusion Wears Ltd | Wholesale & retail | 2025 |
| Bempton Roofing & Property Maintenance Limited | Construction | 2020 |
| Bemrose Booth Paragon Limited | Manufacturing | 2003 |
| BEN Barron Photography Ltd | Professional & scientific | 2024 |
| BEN Ogden Reptiles Ltd | Agriculture & fishing | 2019 |
| BEN Schofield Limited | Professional & scientific | 2022 |
| BEN Smawfield Ltd | Information & communication | 2009 |
| BEN Ward C&I Services Limited | Professional & scientific | 2022 |
| Benchmark Maintenance Company Limited | Construction | 2018 |
| Benchmark Pods Limited | Manufacturing | 2013 |
| Bene Omnia Ltd | Wholesale & retail | 2019 |
| Benedictus Limited | Health & social care | 2023 |
| Beneficence Care and Consultancy Ltd. | Wholesale & retail | 2025 |
| Benelux Shipping Limited | Transport & logistics | 1987 |
| Bengal Brothers Social Club CIC | Education | 2026 |
| Bengal Clipper Ltd | Hospitality | 2018 |
| Bengal Spice of Hull Ltd | Hospitality | 2018 |
| Bengroup Limited | Construction | 2016 |
| Bengroup Property Development Limited | Construction | 2025 |
| Benjamin Lodge Ltd | Health & social care | 2010 |
| Benmarks Group UK Limited | Wholesale & retail | 2016 |
| Benmarks Motors Limited | Extraterritorial | 2016 |
| Benmarks.Uk.Com. Ltd | Extraterritorial | 2014 |
| Benson Planning Studio Ltd | Professional & scientific | 2020 |
| Bentleys Industrial Services Limited | Professional & scientific | 1917 |
| Beowulf Bars Ltd | Hospitality | 2025 |
| Bericap U.K. Limited. | Manufacturing | 1990 |
| Berrygate Hill Nurseries Limited | Agriculture & fishing | 1949 |
| Bersec Ltd | Information & communication | 2015 |
| BES (Grimsby) Limited | Professional & scientific | 2007 |
| Beshhood Autos Ltd | Wholesale & retail | 2022 |
| Bespoke (Yorkshire) Ltd | Construction | 2015 |
| Bespoke Furniture Shop Ltd | Wholesale & retail | 2023 |
| Bespoke Homes & Interiors Ltd | Construction | 2022 |
| Bespoke Joinery Group Ltd | Manufacturing | 2019 |
| Bespoke Memorials Limited | Manufacturing | 2016 |
| Bespoke Windows Doors Hull Limited | Construction | 2024 |
| Best CLEANING1 Limited | Administrative & support | 2025 |
| Best Construct Limited | Construction | 2025 |
| Best Consulting Specialists Limited | Professional & scientific | 2020 |
| Best Hope | Hospitality | 2010 |
| Best Online Therapy Ltd | Health & social care | 2025 |
| Best Pizza 100 Ltd | Hospitality | 2026 |
| BEST4LESS Limited | Wholesale & retail | 2023 |
| BET Bars HU5 Ltd | Hospitality | 2026 |
| Beta Technologies ENG Limited | Information & communication | 2024 |
| Bethel Healthcare (Hull) Limited | Health & social care | 2018 |
| Bethel Properties (Hull) Limited | Real estate | 2021 |
| Bethel Vision Limited | Wholesale & retail | 2026 |
| Bethink Limited | Administrative & support | 2014 |
| Bethune Developments Limited | Real estate | 2017 |
| Betta's Chicken Ltd | Hospitality | 2025 |
| Bettadayz Ltd | Education | 2022 |
| Bettie Care Services Limited | Health & social care | 2024 |
| Bettison Consulting and Management Limited | Construction | 2010 |
| Bettney Roofing Ltd | Construction | 2025 |
| Betto Accommodation Services Ltd | Hospitality | 2024 |
| Betto Lettings Limited | Real estate | 2025 |
| Betto Limited | Real estate | 2023 |
| Bevan Limited | Public administration | 2019 |
| Beverely Foods Ltd | Hospitality | 2025 |
| Beverley 1970 Limited | Extraterritorial | 2014 |
| Beverley Bespoke Joinery Services Limited | Construction | 2025 |
| Beverley Bond Limited | Hospitality | 2023 |
| Beverley DMO Limited | Other services | 2015 |
| Beverley Gate Ltd | Real estate | 2007 |
| Beverley Highgate Dental Practice LLP | | 2018 |
| Beverley Home Goods Ltd | Wholesale & retail | 2026 |
| Beverley Manor Management Limited | Households | 2002 |
| Beverley Medics Limited | Health & social care | 2016 |
| Beverley Road Investments Limited | Real estate | 2005 |
| Beverley Road Store One Ltd | Wholesale & retail | 2024 |
| Beverley Transport Services Limited | Transport & logistics | 1988 |
| Beverley VTS Limited | Professional & scientific | 2011 |
| Bevs Baps Limited | Hospitality | 2019 |
| Bexley Merrick Group Limited | Financial services | 2026 |
| Bexx Engineering and Maintenance Services Ltd | Manufacturing | 2025 |
| Beyond Hotels Ltd | Hospitality | 2010 |
| Beyond the Red Door Limited | Hospitality | 2025 |
| BF Electrical (Hull) Ltd | Construction | 2021 |
| BFC Medical Services Limited | Health & social care | 2023 |
| BFG Takeaway Limited | Hospitality | 2026 |
| BFJ Property Developments Limited | Real estate | 2021 |
| BFT Ltd | Wholesale & retail | 2015 |
| BG Customs Limited | Other services | 2021 |
| BG Heating and Renewables Ltd | Construction | 2023 |
| BG Properties (Hull) Ltd | Real estate | 2023 |
| Bgas Hull Limited | Construction | 2023 |
| BH Property (Hull) Limited | Real estate | 2017 |
| Bhalls Global Ltd | Wholesale & retail | 2024 |
| Bhatti Zinc Resources Ltd | Mining & quarrying | 2025 |
| Bhavsar Matrix Ltd | Real estate | 2025 |
| Bheem Ltd | Professional & scientific | 2025 |
| BHL Networks Ltd | Information & communication | 2025 |
| BIA Tech SEC Ltd | Information & communication | 2026 |
| Bibbys Brushes Ltd | Wholesale & retail | 2025 |
| Bibulus Ltd | Hospitality | 2019 |
| Big Bear Bolts Ltd | Manufacturing | 2019 |