| Boss Bars Liverpool Ltd | Hospitality | 2019 |
| Boss Bathrooms Ltd | Construction | 2023 |
| Boss Boilers Ltd | Construction | 2021 |
| Boss Burgers Liverpool Ltd | Hospitality | 2023 |
| Boss Heating Liverpool Limited | Construction | 2021 |
| Boss Nosh Catering Limited | Hospitality | 2019 |
| Boss Takeaway Limited | Hospitality | 2017 |
| Bossface Ltd | Wholesale & retail | 2021 |
| Boston Meyers Developments Ltd | Construction | 2020 |
| Bosun Consultancy Limited | Professional & scientific | 2026 |
| Bosus Properties Limited | Real estate | 2003 |
| Botanic Bay Limited | Wholesale & retail | 2023 |
| Botanic Lodge Nursery Limited | Health & social care | 2013 |
| Botanico (Duke Street) Limited | Hospitality | 2025 |
| Botanico Woolton Limited | Hospitality | 2023 |
| Botanpharm Ltd | Wholesale & retail | 2022 |
| Both Sides Retreats Ltd | Health & social care | 2025 |
| Bottling 123 Limited | Administrative & support | 2026 |
| Bottom Line Solutions Limited | Professional & scientific | 2025 |
| Boudoir Boutique Retail Limited | Wholesale & retail | 2009 |
| Boughtons Bedroom Design Limited | Manufacturing | 2006 |
| Boujie Bowls Liverpool Ltd | Hospitality | 2024 |
| Bounce Back Spirits Ltd | Extraterritorial | 2021 |
| Bounce Happy Entertainment Limited | Administrative & support | 2024 |
| Bounce House (Liverpool) Limited | Arts & recreation | 2021 |
| Bounce House Events Limited | Hospitality | 2021 |
| Bouncetastic Bouncy Castles Ltd | Administrative & support | 2021 |
| Bound Recruitment Ltd | Administrative & support | 2024 |
| Boundary Group (Holdings) Limited | Financial services | 2017 |
| Boundary Group (Properties) Limited | Administrative & support | 2000 |
| Boundary Group Investments Ltd | Financial services | 2021 |
| Boundary Group Limited | Professional & scientific | 1971 |
| Boundary Plant Hire Limited | Manufacturing | 2017 |
| Boundary Plant Limited | Administrative & support | 2000 |
| Boundary Plant Refurbishment Limited | Wholesale & retail | 2017 |
| Boundary Plant Sales & Hire (Liverpool) Ltd | Wholesale & retail | 2021 |
| Bourgade Education Consultancy Ltd | Education | 2023 |
| Boustead Beef PVT Limited | Wholesale & retail | 2022 |
| Boutique Brides of Crosby Ltd | Wholesale & retail | 2022 |
| Boutique Hair and Make UP Studio Ltd | Other services | 2017 |
| Boutique Hospitals Limited | Health & social care | 2026 |
| Boutique Nails Liverpool Ltd | Other services | 2025 |
| Bouzianebeauty Ltd | Wholesale & retail | 2024 |
| Bove Medica Group Limited | Health & social care | 2025 |
| BOW WOW WOW VIP Ltd | Agriculture & fishing | 2024 |
| Bowco Ltd | Wholesale & retail | 2023 |
| Bowden Builders Community C.I.C. | Real estate | 2024 |
| Bowden Builders Merchants Limited | Wholesale & retail | 2023 |
| Bower & Price Ltd | Hospitality | 2024 |
| Bowers Holdings Ltd | Real estate | 2019 |
| Bowers Property Cleaning Ltd | Administrative & support | 2020 |
| Bowl & Stroll Ltd | Hospitality | 2024 |
| Bowmans Properties Limited | Real estate | 2024 |
| Bowness Paddleboards Ltd | Arts & recreation | 2024 |
| Bowring Joinery Ltd | Construction | 2025 |
| Bowring Manor Management Company Limited | Real estate | 2003 |
| Bowring Plumbing Limited | Construction | 2003 |
| Bowwowie Limited | Manufacturing | 2020 |
| Bowyer Price Limited | Real estate | 2018 |
| Box 10 Fine Foods Limited | Hospitality | 2020 |
| Box HUG Limited | Wholesale & retail | 2025 |
| Box MAD Hospitality Ltd | Hospitality | 2025 |
| Box Menswear Limited | Wholesale & retail | 2018 |
| Box of Toys Competitions Ltd | Other services | 2025 |
| Box Park Express Ltd | Real estate | 2025 |
| Box Studios Enterprises Ltd | Professional & scientific | 2019 |
| BOX2CHANGE CIC | Education | 2025 |
| Boxed Marketing Limited | Professional & scientific | 2025 |
| Boxed OFF Communications Ltd | Professional & scientific | 2012 |
| Boxed OFF Shipping Solutions Limited | Transport & logistics | 2024 |
| Boxing Free Ltd | Information & communication | 2026 |
| Boxsoft Ltd | Wholesale & retail | 2022 |
| Boxtec Retail Limited | Hospitality | 2017 |
| Boxtwist Limited | Hospitality | 2025 |
| Boxxed Social Events Limited | Other services | 2021 |
| Boyce and Daughters Limited | Administrative & support | 1983 |
| Boylan's Enterprise Ltd | Real estate | 2022 |
| Bozan Handyman Limited | Construction | 2025 |
| BP Amoco Exploration (Faroes) Limited | Mining & quarrying | 1965 |
| BP Car Fleet Limited | Financial services | 1960 |
| BP Properties (North West) Ltd | Real estate | 2021 |
| Bpars Ltd | Transport & logistics | 2022 |
| BPC (Liverpool) Ltd | Real estate | 2010 |
| BPC Special Projects LLP | | 2016 |
| BPD (NW) Ltd | Administrative & support | 2016 |
| Bpes Consultancy Ltd | Professional & scientific | 2026 |
| BPJ GAS Limited | Construction | 2026 |
| BPM Rehab Ltd | Health & social care | 2022 |
| Bpmbs Limited | Construction | 2026 |
| BPS Developments Limited | Construction | 1994 |
| Bpsu Services Ltd | Information & communication | 2025 |
| BR & LC Investments Ltd | Real estate | 2024 |
| BR Air Conditioning Limited | Construction | 2026 |
| BR Cardiac Care Limited | Professional & scientific | 2014 |
| BR Roof Sheeting and Cladding Limited | Construction | 2024 |
| BR Trans Recruitment Ltd | Transport & logistics | 2016 |
| BR-1 Care Ltd | Health & social care | 2026 |
| BR2 Limited | Wholesale & retail | 2025 |
| Brabco 1022 Limited | Professional & scientific | 2010 |
| Brabco 1419 Limited | Hospitality | 2015 |