| BMG Group International Ltd | Construction | 2021 |
| BMG Haulage Limited | Transport & logistics | 2024 |
| BMG Productions Ltd | Arts & recreation | 2017 |
| BMG Virtual Limited | Administrative & support | 2021 |
| BMH (Manchester) Ltd | Hospitality | 2012 |
| BMH Property Ltd | Real estate | 2021 |
| Bmhc Services Ltd | Health & social care | 2013 |
| BMI Prestwich Limited | Real estate | 2019 |
| BMI Project (UK) Limited | Real estate | 2011 |
| BML Gardner Limited | Real estate | 2024 |
| BML Manufacturing Ltd | Manufacturing | 2007 |
| BML MCR Ltd | Construction | 2025 |
| BMM Hire Cars Ltd | Transport & logistics | 2025 |
| Bmma Ltd | Real estate | 2025 |
| BMN Crest Limited | Administrative & support | 2017 |
| BMN Salmons Lane Ltd | Real estate | 2019 |
| BMO Ltd | Professional & scientific | 2024 |
| BMR Builds & Interiors Ltd | Construction | 2026 |
| BMR Chelmsford 2 Limited | Real estate | 2022 |
| BMR Consultancy Ltd | Professional & scientific | 2020 |
| BMS Funding Ltd | Professional & scientific | 2015 |
| BMS Healthcare Ltd | Health & social care | 2021 |
| BMS Teamwear Ltd | Wholesale & retail | 2021 |
| Bms-Cxding Limited | Information & communication | 2025 |
| Bmsl Builders Limited | Construction | 2023 |
| Bmsl Estates Ltd | Real estate | 2021 |
| Bmsl Holdings Limited | Real estate | 2023 |
| BMT Electrical Ltd | Construction | 2023 |
| BMT Healthcare North Holdings Limited | Financial services | 2018 |
| BMT Healthcare North Limited | Wholesale & retail | 2018 |
| BMT Healthcare South Holdings Limited | Financial services | 2018 |
| BMT Healthcare South Limited | Wholesale & retail | 2018 |
| Bmwrover Company | | 1994 |
| BMY Trade Ltd | Wholesale & retail | 2022 |
| BN Global Properties Ltd | Real estate | 2022 |
| BN MCR Limited | Wholesale & retail | 2024 |
| BNA Consultancy Ltd | Administrative & support | 2011 |
| Bnash Consulting Limited | Professional & scientific | 2021 |
| BNB Construction Ltd | Construction | 2026 |
| BNB Services Ltd | Health & social care | 2011 |
| Bnb+Construction Ltd | Construction | 2023 |
| BNC Contracts Limited | Construction | 2024 |
| BND Advisory Limited | Professional & scientific | 2025 |
| BND Group Ltd | Wholesale & retail | 2015 |
| BNE Property Management Ltd | Real estate | 2026 |
| BNF Investments Ltd | Real estate | 2019 |
| BNF SUB Ltd | Real estate | 2026 |
| BNJ Immigration Services Limited | Professional & scientific | 2013 |
| BNJ Trading Ltd | Wholesale & retail | 2026 |
| BNK Solutions Limited | Education | 2023 |
| BNL Restaurant Ltd | Hospitality | 2016 |
| BNM MCR Ltd | Other services | 2024 |
| BNM Mobile Limited | Other services | 2021 |
| Bnny Ltd | Wholesale & retail | 2020 |
| Bnos Margulis Wiznitz | Education | 2019 |
| BNP Corporation Ltd | Professional & scientific | 2024 |
| BNP Paribas NET Limited | Information & communication | 1981 |
| BNR Agency Consultancy Limited | Administrative & support | 2017 |
| BNR Property Ltd | Real estate | 2021 |
| Bnsm Ltd | Wholesale & retail | 2020 |
| BNT Estates Ltd | Real estate | 2026 |
| BNU Traders Ltd | Information & communication | 2025 |
| BNW Enterprises Limited | Wholesale & retail | 2021 |
| Boac Properties Limited | Real estate | 2021 |
| Boafo Brothers Ltd | Wholesale & retail | 2023 |
| Boah Consulting Limited | Professional & scientific | 2026 |
| Boai Group Limited | Wholesale & retail | 2020 |
| Boame Logistics Ltd | Transport & logistics | 2021 |
| Board for Computer Supplies Ltd | Wholesale & retail | 2025 |
| Boardglen Limited | Other services | 1998 |
| Boardlink Limited | Manufacturing | 1969 |
| Boardlogic Ltd | Transport & logistics | 2024 |
| Boardman Bros Limited | Wholesale & retail | 2004 |
| Boardmans Brickwork&Construction Limited | Construction | 2024 |
| Boardmans Design Limited | Wholesale & retail | 2017 |
| Boardmans Group (EOT) Limited | Professional & scientific | 2021 |
| Boardmans Holdings Limited | Financial services | 2019 |
| Boardmate Limited | Information & communication | 2025 |
| Boardwalk Alternative Capital Limited | Professional & scientific | 2014 |
| Boardwalk Studio Ltd | Information & communication | 2011 |
| Boardwalk Supply Company Limited | Wholesale & retail | 2017 |
| Boarshaw OFF Licence Ltd | Wholesale & retail | 2024 |
| Boarshaw Woods Ltd | Hospitality | 2008 |
| Boat Drinks Limited | Hospitality | 2014 |
| Boateng Business Development Ltd | Professional & scientific | 2018 |
| Boatmans Management Company Limited | Households | 2002 |
| Boatrock Limited | Professional & scientific | 2026 |
| Boaz Resources Limited | Professional & scientific | 2021 |
| BOB Ainsworth Limited | Other services | 2011 |
| BOB BOB FIX Ltd | Construction | 2023 |
| BOB Care Ltd | Administrative & support | 2023 |
| BOB Cooper Productions Ltd | Arts & recreation | 2021 |
| BOB Jones & Associates AS Ltd | Professional & scientific | 2022 |
| BOB Jones & Associates Ltd | Professional & scientific | 2022 |
| BOB Lettings Ltd | Real estate | 2023 |
| BOB Shop 17 Ltd | Wholesale & retail | 2024 |
| BOB Shop 21 Ltd | Wholesale & retail | 2025 |
| BOB Shop A21 Ltd | Wholesale & retail | 2025 |
| BOB Sopel Travel Limited | Administrative & support | 1989 |
| BOB Sutton Master Builder Ltd | Construction | 2024 |