| Barrpress Ltd | Manufacturing | 2008 |
| Barrs Estates Ltd | Hospitality | 2001 |
| Barrs Parks Limited | Hospitality | 1993 |
| Barry Patient Consulting Services Limited | Professional & scientific | 2020 |
| Barrymore ST Ltd | Arts & recreation | 2025 |
| Bars Courier Limited | Transport & logistics | 2023 |
| Bart & Tecla Ltd | Real estate | 2025 |
| Bartle Read Limited | Administrative & support | 2014 |
| Bartlecrest Limited | Real estate | 1983 |
| Bartletts Solicitors Limited | Professional & scientific | 2010 |
| Barton Close MAN Co Limited | Real estate | 2024 |
| Barton Day Nurseries Limited | Administrative & support | 2017 |
| Barton Green Ltd | Professional & scientific | 2015 |
| Bartonwalsh Holdings Limited | Administrative & support | 2017 |
| Bartonwalsh Management Ltd | Professional & scientific | 2020 |
| Bartosz Piotr Zielonka Ltd | Transport & logistics | 2022 |
| Bartrek Ltd | Information & communication | 2024 |
| Barts Cars Ltd | Wholesale & retail | 2021 |
| Barwise and Wong Limited | Manufacturing | 1982 |
| Barwise Contracting Services Limited | Financial services | 2014 |
| Bascom Financial Services Limited | Financial services | 2013 |
| Base Apartments Ltd | Extraterritorial | 2017 |
| Base Cleaning Services Ltd | Administrative & support | 2012 |
| Base Communications (N/W) Limited | Information & communication | 2007 |
| Base Estates Limited | Real estate | 2005 |
| Base Holdings Limited | Financial services | 2024 |
| Base Homecare Ltd | Manufacturing | 2019 |
| Base Kitchen Limited | Manufacturing | 2026 |
| Base Maintenance & Cleaning Services Ltd | Administrative & support | 2015 |
| Base Parking Ltd | Other services | 2012 |
| Base Project Services Limited | Construction | 2021 |
| Base Properties Limited | Extraterritorial | 2008 |
| Base Residential Ltd | Real estate | 2008 |
| Base Residential Sales and Letting Ltd | Real estate | 2010 |
| Base Serviced Apartments Ltd | Financial services | 2013 |
| Base Triangle Ltd | Other services | 2017 |
| Base Wholesale NW Limited | Information & communication | 2017 |
| Basecamp Liverpool Co-Working Ltd | Professional & scientific | 2022 |
| Basecamp Liverpool Ltd | Administrative & support | 2011 |
| Basel's Car Showroom and Car Wash Ltd | Administrative & support | 2024 |
| Baseline Contract Services Limited | Construction | 2013 |
| Basharat ALI Ltd | Wholesale & retail | 2023 |
| Basil Grange Management Company Limited | Real estate | 2004 |
| Basil Grange Property Limited | Financial services | 2019 |
| Basil Projects Limited | Real estate | 2021 |
| Basil Property Group Ltd | Real estate | 2024 |
| Basira Ltd | Education | 2024 |
| Basket Afro Carribean Market Ltd | Wholesale & retail | 2025 |
| Basobas Limited | Transport & logistics | 2026 |
| Bass Property Solutions Limited | Households | 2026 |
| Bassey Property Ltd | Real estate | 2023 |
| Bastin Holdings Ltd | Construction | 2015 |
| BAT Plant Hire Limited | Extraterritorial | 1972 |
| Batala Mersey Community Samba Reggae Band C.I.C. | Arts & recreation | 2019 |
| Batam Grill Limited | Hospitality | 2022 |
| Batchlytic Limited | Information & communication | 2025 |
| Batemate Ltd | Wholesale & retail | 2020 |
| Bateren Therapy Ltd | Health & social care | 2026 |
| Bates & Flynn Ltd | Real estate | 2026 |
| Bates Healthcare Ltd | Health & social care | 2016 |
| Bath Street Marine Table Tennis Club CIC | Arts & recreation | 2024 |
| Bathgate Business Finance Limited | Administrative & support | 1991 |
| Bathgate Capital Ltd | Administrative & support | 1997 |
| Bathgate Flooring Limited | Manufacturing | 2004 |
| Bathgate Silica Sand Limited | Mining & quarrying | 1916 |
| Bathgate Slate Technologies Limited | Manufacturing | 2004 |
| Bathgate Walker Group Limited | Mining & quarrying | 1964 |
| Bathroom Centre Liverpool Limited | Construction | 2016 |
| Bathroom Home Group Limited | Wholesale & retail | 2015 |
| Bathroom Liverpool Ltd | Wholesale & retail | 2020 |
| Bathrooms and Wetrooms Limited | Wholesale & retail | 2007 |
| Batool Limited | Health & social care | 2012 |
| Batten & Co Limited | Arts & recreation | 2001 |
| Batten Hughes & Co Limited | Professional & scientific | 2000 |
| Battery Specialist North West Limited | Wholesale & retail | 2000 |
| Batu Limited | Extraterritorial | 2005 |
| BAU247 Limited | Information & communication | 2023 |
| Bauen Projects Ltd | Construction | 2023 |
| Bauhaus Construction and Developments Ltd | Construction | 2026 |
| Bauman Ltd | Professional & scientific | 2024 |
| BAV Landscapes Ltd | Professional & scientific | 2026 |
| Bavan Vision Ltd | Wholesale & retail | 2022 |
| Bavette Steak Restaurant Limited | Hospitality | 2021 |
| Baxter's Bakery Company Limited | Hospitality | 1998 |
| Baxters' Property Company Ltd | Real estate | 2019 |
| Bay Holdings (NW) Limited | Construction | 2016 |
| Bay Tree Cookery Academy Community Interest Company | Health & social care | 2017 |
| Baybutt Group Ltd | Professional & scientific | 2024 |
| Baybutt Lesser Group Limited | Information & communication | 2025 |
| Baycliff Developments Limited | Real estate | 2000 |
| Baylo Beds Limited | Wholesale & retail | 2025 |
| Baylynn Group Ltd | Wholesale & retail | 2025 |
| Bayport Ltd | Administrative & support | 2017 |
| Bayt Group Ltd | Wholesale & retail | 2023 |
| Bayview Building Management Ltd | Real estate | 2019 |
| BAZ B Paving Ltd | Construction | 2026 |
| BAZ CAZ Sales Ltd | Wholesale & retail | 2026 |
| BAZ Todd Events Ltd | Information & communication | 2023 |
| Bazandy Limited | Wholesale & retail | 2019 |
| Bazar Women & Children Training Centre Ltd. | Hospitality | 2025 |