| Bradwick Technologies Limited | Wholesale & retail | 1997 |
| Brady Investments Limited | Real estate | 2025 |
| Brainjam Limited | Information & communication | 2024 |
| Brake Horse Power Salvage Ltd | Wholesale & retail | 2023 |
| Brakeyard Auto Parts UK Ltd | Wholesale & retail | 2024 |
| Bramble Construction Limited | Construction | 2000 |
| Bramleys LLP | | 2009 |
| Bramms Inventories Limited | Other services | 2002 |
| Bramoak | Professional & scientific | 2021 |
| Bramrose Limited | Real estate | 2016 |
| Bramrowan | Professional & scientific | 2021 |
| Bramstone Limited | Real estate | 2013 |
| Bramwell Brown Limited | Professional & scientific | 2013 |
| Bramwillow | Professional & scientific | 2021 |
| Brand & Story Limited | Professional & scientific | 2025 |
| Brand and Code Ltd | Professional & scientific | 2019 |
| Brand Dimension Limited | Professional & scientific | 2023 |
| Brandwood Parts Ltd | Wholesale & retail | 2023 |
| Bray & Holmes Engineering & Fabrication Ltd | Professional & scientific | 2026 |
| Bray & Holmes Engineering Ltd | Professional & scientific | 2022 |
| Breathe Yoga Retreats Ltd | Other services | 2025 |
| Breckland Pest Control Ltd | Extraterritorial | 2026 |
| Bredon Limited | Real estate | 2025 |
| Breeze POP Limited | Wholesale & retail | 2025 |
| Bremner Legacy Limited | Transport & logistics | 2022 |
| Brend Apple Clinic Limited | Other services | 2015 |
| Brentview Limited | Other services | 2017 |
| Brewed Cafe Limited | Hospitality | 2025 |
| Brewery Wood Limited | Extraterritorial | 2019 |
| Brews Bites & Books Limited | Hospitality | 2016 |
| Brewz Limited | Hospitality | 2025 |
| Briar Court Hotel Limited | Hospitality | 1986 |
| Bricks an Mortar Ltd | Real estate | 2025 |
| Brickstone Developments Ltd | Construction | 2009 |
| Bridge Mills Limited | Real estate | 2002 |
| Bridge Solutions and Consultancy Limited | Education | 2018 |
| Bridge Taxis (Huddersfield) Limited | Transport & logistics | 2013 |
| Bridge Taxis (Longroyd) Limited | Transport & logistics | 2024 |
| Bridgecroft Beer Supplies Limited | Hospitality | 2004 |
| Bridges Interim & Consultancy Services Limited | Financial services | 2013 |
| Bridgewood (HD) Ltd | Administrative & support | 2025 |
| Bridgewood Services Limited | Health & social care | 1995 |
| Bridgewood Trust Limited | Health & social care | 1988 |
| Brierley Brothers Holdings Limited | Manufacturing | 2006 |
| Brierley Brothers,Limited | Manufacturing | 1896 |
| Brighouse Sushi Ltd | Hospitality | 2023 |
| Bright Box Design Limited | Administrative & support | 2018 |
| Bright Stack Labs Ltd | Information & communication | 2025 |
| Bright Track Ltd | Information & communication | 2025 |
| Bright Young Consulting Limited | Professional & scientific | 2006 |
| Brighter Horizon Capital Ltd | Financial services | 2024 |
| Brightside Academy Ltd | Education | 2025 |
| Brightstar Agencies Limited | Financial services | 2015 |
| Briken Ltd | Administrative & support | 2025 |
| Brilen Food Service Ltd | Hospitality | 2021 |
| Brindle Services Ltd | Administrative & support | 2021 |
| Brinswick Holdings Limited | Financial services | 2025 |
| Briro Properties Limited | Financial services | 2025 |
| Brit Pharma Ltd | Agriculture & fishing | 2024 |
| Brit Way Limited | Wholesale & retail | 2025 |
| Brit-Ex DNA & Forensic Services Limited | Professional & scientific | 2025 |
| Britannia Markets Ltd | Wholesale & retail | 2024 |
| British Amateur Rugby League Association Limited | Arts & recreation | 2017 |
| British Mohair Holdings Limited | Professional & scientific | 1893 |
| Britishcart Ltd | Wholesale & retail | 2024 |
| Britto Psychiatry Limited | Health & social care | 2002 |
| Broad Lane Management Company (Holmfirth) Ltd | Households | 2024 |
| Broad Reach Ventures Limited | Professional & scientific | 2015 |
| Broadacre (Huddersfield) Ltd | Real estate | 2023 |
| Broadbents Sprinkler Protection Limited | Construction | 2014 |
| Broadfields Investments Ltd | Real estate | 2016 |
| Broadgate Facade Solutions Ltd | Professional & scientific | 2023 |
| Broadgate XFX Limited | Construction | 2008 |
| Broadhurst Cottages Limited | Real estate | 2011 |
| Broadley & Holmes Ltd | Other services | 2018 |
| Broadoak Network Limited | Real estate | 2012 |
| Brock Edge Limited | Real estate | 2025 |
| Brodie & BOO Limited | Extraterritorial | 2016 |
| Brogan Resource Solutions Limited | Information & communication | 2007 |
| Bronshealth Ltd | Health & social care | 2021 |
| Bronte Precision Engineering Ltd | Manufacturing | 2003 |
| Bronwyn James Limited | Arts & recreation | 2024 |
| Brook and Learoyd Property Limited | Real estate | 2015 |
| Brook Crompton UK Limited | Manufacturing | 2001 |
| Brook Motors Limited | Manufacturing | 2011 |
| Brooke House (Clayton West) Management Company Limited | Households | 2015 |
| Brooke Park Management Company Limited | Other services | 2003 |
| Brooklyn Bakes Ltd | Hospitality | 2025 |
| Brooks Safety Training and Consultancy Ltd | Education | 2015 |
| Brooksbank Plant Ltd | Wholesale & retail | 2025 |
| Brooksbank Properties Limited | Real estate | 2015 |
| Brookwood Arches Limited | Real estate | 2017 |
| Broom Energy Holdings Limited | Professional & scientific | 2023 |
| Broombank Consulting Limited | Construction | 2020 |
| Brothers Homes & Lettings Ltd | Real estate | 2026 |
| Brothers Inn Ltd | Wholesale & retail | 2023 |
| Brow Clinic Huddersfield Ltd | Other services | 2019 |
| Browallia Asset Management Limited | Professional & scientific | 2002 |
| Browallia Holdings Limited | Professional & scientific | 1883 |
| Browallia Retirement Benefits Scheme Trustees Limited | Administrative & support | 1940 |