| BGW Properties Limited | Real estate | 2025 |
| BGX Plumbing & Heating Limited | Construction | 2017 |
| BH 613 Ltd | Real estate | 2019 |
| BH Accounts Limited | Professional & scientific | 2017 |
| BH Coaching Academy Ltd | Arts & recreation | 2026 |
| BH Developments Ltd | Professional & scientific | 2021 |
| BH Distribution Ltd | Wholesale & retail | 2022 |
| BH Empire Limited | Real estate | 2026 |
| BH Five Ltd | Real estate | 2005 |
| BH Garden Services Ltd | Administrative & support | 2023 |
| BH Investments (Bradford) Limited | Real estate | 2012 |
| BH Pharmacy Ltd | Wholesale & retail | 2023 |
| BH Property Maintenance Limited | Real estate | 2026 |
| BH Restaurants (Leeds) Ltd | Hospitality | 2013 |
| BH Seven Ltd | Professional & scientific | 2005 |
| BH Success 1 Limited | Real estate | 2017 |
| BH Tankering Ltd | Water & waste | 2026 |
| BH Thirteen Ltd | Real estate | 2005 |
| Bh-Fabs Limited | Manufacturing | 2007 |
| BH32 Sports Limited | Professional & scientific | 2023 |
| BHA for Equality | Health & social care | 1999 |
| BHA Group Limited | Administrative & support | 2015 |
| Bhagat Enterprises Ltd | Other services | 2020 |
| Bhaji Boss Ltd | Hospitality | 2025 |
| Bhandari & Co. (Accountants) Limited | Professional & scientific | 2010 |
| Bhangra Burger Limited | Hospitality | 2009 |
| Bhanu Ltd | Wholesale & retail | 2025 |
| Bharker Properties Ltd | Real estate | 2020 |
| Bhaskar Surgical Services Limited | Health & social care | 2020 |
| Bhatt Architects Limited | Professional & scientific | 2011 |
| Bhattcom Limited | Wholesale & retail | 2025 |
| Bhatti Logistics Ltd | Transport & logistics | 2020 |
| Bhatzlocho Trust Ltd | Other services | 2020 |
| Bhavaani Ltd | Health & social care | 2023 |
| Bhbt Consulting Limited | Professional & scientific | 2017 |
| BHC Contractors Limited | Manufacturing | 2015 |
| Bheema Ltd | Information & communication | 2026 |
| Bhgwt Ltd | Health & social care | 2021 |
| BHH (Brookfield) Limited | Professional & scientific | 1955 |
| BHH Holdings Ltd | Construction | 2024 |
| Bhic 1 Ltd | Real estate | 2021 |
| Bhid Group Limited | Manufacturing | 2014 |
| Bhindey Limited | Wholesale & retail | 2025 |
| BHM Property Services Ltd | Construction | 2021 |
| BHM Trader Ltd | Wholesale & retail | 2020 |
| Bhojani Healthcare Limited | Health & social care | 2012 |
| Bhphones Ltd | Manufacturing | 2026 |
| BHS Corp Ltd | Wholesale & retail | 2022 |
| BHS Law Ltd | Professional & scientific | 2024 |
| BHS Milnrow Limited | Real estate | 2018 |
| BHS Trading Ltd | Wholesale & retail | 2025 |
| Bhtu | Other services | 2023 |
| Bhumum Investments Limited | Real estate | 2021 |
| Bhutta and Sons Sports Ltd | Manufacturing | 2024 |
| Bhutta Ltd | Wholesale & retail | 2025 |
| Bhutta Mart Limited | Wholesale & retail | 2024 |
| Bhuvana S Limited | Professional & scientific | 2025 |
| BI Accountancy Ltd | Professional & scientific | 2014 |
| BI Furniture Ltd | Manufacturing | 2021 |
| BI Vibe Limited | Information & communication | 2019 |
| BIA Cleaning Ltd | Administrative & support | 2019 |
| BIA Enterprise UK Ltd | Wholesale & retail | 2023 |
| BIA Trends Limited | Wholesale & retail | 2021 |
| Biamonde Limited | Wholesale & retail | 2025 |
| Bianca Nera Group for Trading Ltd | Wholesale & retail | 2026 |
| Bianchi Accountants Limited | Professional & scientific | 2011 |
| Bianchi Coffee Limited | Hospitality | 2014 |
| Bianchi Investments Ltd | Real estate | 2024 |
| Biancogroup Limited | Wholesale & retail | 2013 |
| Bianko Ltd | Wholesale & retail | 2024 |
| Bias Sunset Limited | Hospitality | 2025 |
| Biba Fortress UK Ltd | Real estate | 2024 |
| Biba Holdings Limited | Financial services | 2024 |
| Bibby Hydromap Limited | Mining & quarrying | 1997 |
| Bibby Property Partners Ltd | Real estate | 2025 |
| Bibco Assets Ltd | Real estate | 2024 |
| Bibi Glamz Ltd | Other services | 2025 |
| Bibi Spice Ltd | Hospitality | 2018 |
| Bibianna Ltd | Wholesale & retail | 2024 |
| Bibihairlineuk Limited | Other services | 2026 |
| Bibiyana Indian Ltd | Hospitality | 2024 |
| Bibmodel Ltd | Administrative & support | 2021 |
| Bibo Bubbles Ltd | Wholesale & retail | 2025 |
| Bicas Consultancy UK Limited | Education | 2013 |
| Bicen Maths Ltd | Education | 2024 |
| Bicester Business Services Limited | Professional & scientific | 1982 |
| Bickerstaffe Containers Limited | Manufacturing | 1994 |
| Bickley Carpets Ltd | Wholesale & retail | 2025 |
| Bicm Limited | Health & social care | 2019 |
| Bico Developments Limited | Construction | 2015 |
| Bico Group Limited | Professional & scientific | 2015 |
| Bicycle Garage Ltd | Manufacturing | 2017 |
| BID Auction House Limited | Administrative & support | 2021 |
| BID BOT Ltd | Information & communication | 2023 |
| BID Thinking Limited | Professional & scientific | 2016 |
| Bidayet Almasar Ltd | Other services | 2023 |
| Bidco 2 Limited | Financial services | 2021 |
| Bidco 3 Limited | Financial services | 2021 |
| Bidco 4 Limited | Financial services | 2021 |
| Bidco Investments Limited | Financial services | 2026 |