| Bower Close Management Company Limited | Households | 2023 |
| Bowerswood House Retirement Home Limited | Health & social care | 2004 |
| Bowgreave Group Limited | Hospitality | 2020 |
| Bowgreave Holdings Ltd | Professional & scientific | 2022 |
| Bowker Motorcycles Limited | Wholesale & retail | 2006 |
| Bowker Performance Cars Limited | Wholesale & retail | 2017 |
| Bowker Preston Limited | Wholesale & retail | 1964 |
| Bowland & Co Ltd | Professional & scientific | 2021 |
| Bowland Acquisitions Limited | Real estate | 2020 |
| Bowland Antiques Limited | Wholesale & retail | 2024 |
| Bowland Bioenergy Limited | Agriculture & fishing | 2002 |
| Bowland Care Services Ltd | Health & social care | 2014 |
| Bowland Catering Group Ltd | Hospitality | 2026 |
| Bowland Construction Ltd | Construction | 2017 |
| Bowland Damp Proofing & Preservations Ltd | Construction | 2024 |
| Bowland Farms Estate Limited | Agriculture & fishing | 2014 |
| Bowland Forest Gliding Club Limited | Arts & recreation | 1969 |
| Bowland Homes Ltd | Real estate | 2021 |
| Bowland Motors Limited | Wholesale & retail | 2018 |
| Bowland Project Solutions Limited | Professional & scientific | 2021 |
| Bowland Surveyors Ltd. | Professional & scientific | 2020 |
| Bowland Tree Consultancy Ltd | Professional & scientific | 2009 |
| Bowland View (Grimsargh) Management Company Limited | Households | 2017 |
| Bowland View Limited | Households | 2007 |
| Bowthorn Motors Ltd | Wholesale & retail | 2021 |
| Box N LOK Limited | Transport & logistics | 2024 |
| Box VFX Limited | Information & communication | 2023 |
| Boxed Club Ltd | Other services | 2025 |
| Boxly Ltd | Extraterritorial | 2026 |
| Boxspar Ltd | Wholesale & retail | 2025 |
| Boyce Brook Leisure Ltd. | Administrative & support | 2017 |
| Boyce Utilities Limited | Construction | 2020 |
| Boycebrook Investments Limited | Real estate | 2021 |
| Boycebrook Limited | Other services | 2022 |
| Boycebrook Properties Limited | Construction | 2021 |
| Boycebrook Ribble Valley Limited | Hospitality | 2021 |
| Boycebrook Trading Limited | Construction | 2021 |
| Boyd and COE Limited | Arts & recreation | 2017 |
| Boyd Civils Ltd | Construction | 2024 |
| Boyd Construction Services Limited | Construction | 2017 |
| Boydtech Limited | Construction | 2013 |
| Boys Court Management Company Limited | Households | 1998 |
| BOZ Coffee Ltd | Manufacturing | 2023 |
| BP Carelink Limited | Health & social care | 2024 |
| BP Plumbing & Heating Ltd | Construction | 2013 |
| BP05 Limited | Financial services | 2024 |
| BPC (UK) Ltd. | Manufacturing | 1977 |
| BPH Assets Ltd | Administrative & support | 2016 |
| BPH Construction Limited | Construction | 2002 |
| BPK Computer Repair and Services Limited | Other services | 2025 |
| Bpool PO Limited | Transport & logistics | 2013 |
| BPR Construction Ltd | Construction | 2012 |
| BPS Stays Ltd | Real estate | 2026 |
| BQ Heating Engineer Ltd | Construction | 2022 |
| BR Trade Ltd | Wholesale & retail | 2022 |
| Brabin's Almshouses Trustee Limited | Real estate | 2024 |
| Brabins Emporium Limited | Wholesale & retail | 2019 |
| Bracken Competitions UK Limited | Arts & recreation | 2025 |
| Brad Park Developments Limited | Construction | 2013 |
| BRADDERS79 Pubs Ltd | Hospitality | 2024 |
| Bradford Northern Rugby League Football Club (1964) Limited | Arts & recreation | 1978 |
| Bradford Property Solutions Deal Selling Ltd | Administrative & support | 2024 |
| Bradkirk Business Park Limited | Real estate | 2017 |
| Bradley Ascroft Roofing Ltd | Construction | 2013 |
| Bradley Bidco Limited | Manufacturing | 2015 |
| Bradley Cleanco Limited | Manufacturing | 2022 |
| Bradley Demolition Limited | Construction | 1996 |
| Bradley Group Limited | Professional & scientific | 2025 |
| Bradley Heating Solutions Ltd | Construction | 2023 |
| Bradley Hill Units Ltd | Real estate | 2013 |
| Bradley Taylor Properties Ltd | Real estate | 2021 |
| Bradley Thomas Limited | Real estate | 2022 |
| Bradley Topco Limited | Manufacturing | 2015 |
| Bradley Ultra Topco Limited | Manufacturing | 2022 |
| Bradleys Electrical Limited | Wholesale & retail | 2003 |
| Bradshaws Farm Shop Ltd | Wholesale & retail | 2015 |
| Bradwood Developments Ltd | Construction | 2022 |
| Braeside Property Risk Management Ltd | Professional & scientific | 2023 |
| Braeside Surveyors & Valuers Corporation Ltd | Professional & scientific | 2023 |
| Braeside Surveyors & Valuers Group (UK) Ltd | Professional & scientific | 2023 |
| Braeside Surveyors & Valuers Ltd | Professional & scientific | 2020 |
| Braeside Surveyors Ltd | Professional & scientific | 2023 |
| Braeside Surveys & Valuers (UK) Ltd | Professional & scientific | 2023 |
| Bragavini Limited | Professional & scientific | 2006 |
| Brahm Capital Projects Limited | Construction | 2009 |
| Brahm Fundco 1 Limited | Construction | 2006 |
| Brahm Fundco 2 Limited | Real estate | 2008 |
| Brahm Intermediate Holdco 1 Limited | Construction | 2006 |
| Brahm Intermediate Holdco 2 Limited | Financial services | 2008 |
| Brahm Lift Limited | Construction | 2006 |
| Braithwaite's Removals Ltd | Transport & logistics | 2018 |
| Brakefit Ltd | Wholesale & retail | 2021 |
| Bram Studio Ltd | Other services | 2025 |
| Brambles Administration Limited | Administrative & support | 2012 |
| Bramblewood Holdings Limited | Financial services | 2019 |
| Bramley Court (Standish) Management Company Limited | Households | 2001 |
| Brand Interiors Limited | Wholesale & retail | 2008 |
| Brands for Nothing Limited | Wholesale & retail | 2020 |
| Brandt Education Ltd | Administrative & support | 2019 |
| Brandt Group Ltd | Administrative & support | 2019 |