| Banglor Limited | Hospitality | 2017 |
| Bani Business Services Ltd | Professional & scientific | 2017 |
| Bankfoot Financial Services Limited | Financial services | 2003 |
| Bar Export LLP | | 2013 |
| Barakah Ecom Limited | Wholesale & retail | 2023 |
| Barakah Investment Group Ltd | Real estate | 2018 |
| Barbican-Intel Ltd | Administrative & support | 2025 |
| Barblades Limited | Wholesale & retail | 2018 |
| Barden Freight Limited | Transport & logistics | 2016 |
| Barden Holdings (Yorkshire) Limited | Other services | 2002 |
| Barden Print Limited | Information & communication | 2003 |
| Bardo Services Ltd | Professional & scientific | 2024 |
| Bardsley Workforce Limited | Administrative & support | 2019 |
| Barfit Limited | Manufacturing | 2007 |
| Bargain Home Essentials Ltd | Extraterritorial | 2024 |
| Bargain Local Ltd | Wholesale & retail | 2025 |
| Bargain Spanish Properties Limited | Real estate | 2025 |
| Bargain Wallet Ltd | Wholesale & retail | 2021 |
| Bargain Warehouse Deals Ltd | Wholesale & retail | 2025 |
| Barisauskas Ltd | Transport & logistics | 2025 |
| Bark & Vibe Ltd | Manufacturing | 2024 |
| Barker Construction Limited | Construction | 1998 |
| Barkisland Properties Ltd | Real estate | 2023 |
| Barland Shopfitting UK Limited | Construction | 2019 |
| Barmpot Cafe Ltd | Hospitality | 2025 |
| Barn OWL Consulting Limited | Professional & scientific | 2009 |
| Barnacle Books Ltd | Wholesale & retail | 2024 |
| Barnick Homes Limited | Construction | 2020 |
| Barntex Limited | Wholesale & retail | 1985 |
| Barras Motors Ltd | Wholesale & retail | 2024 |
| Barrington Fabrics (Yorkshire) Ltd | Wholesale & retail | 2023 |
| Barringtons Foods Ltd | Manufacturing | 2022 |
| Barroon Design Limited | Professional & scientific | 2007 |
| Barry Abbott Builders Limited | Construction | 2014 |
| Barry Sykes Enterprises Limited | Real estate | 2010 |
| Barton Health Care Services Limited | Wholesale & retail | 2008 |
| Baruccini Ltd | Wholesale & retail | 2024 |
| Barza Construction Ltd | Construction | 2018 |
| Base Wholesale Ltd | Wholesale & retail | 2013 |
| Basecamp Collective Ltd | Wholesale & retail | 2026 |
| Bases Asset Management Limited | Real estate | 2020 |
| Basic Principles Limited | Extraterritorial | 2005 |
| Basma Construction Ltd | Construction | 2020 |
| Bassi Property Holdings Ltd | Households | 2024 |
| Bassi Travel Ltd | Transport & logistics | 2025 |
| Bassment Promotions Limited | Information & communication | 2016 |
| Bates & Co. (Huddersfield) Limited | Administrative & support | 1982 |
| BATHROOM4U Ltd | Construction | 2021 |
| Batley Plaza Ltd | Real estate | 2019 |
| Batley Property Investments Ltd | Real estate | 2022 |
| Baton House Enterprises Limited | Education | 2017 |
| Battaglia Holdings Limited | Financial services | 2022 |
| Battaglia Marble & Granite Ltd. | Manufacturing | 2003 |
| Battaglia Property Limited | Real estate | 2021 |
| Battle of Britain Historic Flight Limited | Other services | 2018 |
| Bavarian Motor Werkz Ltd | Wholesale & retail | 2018 |
| Bawn Flooring Limited | Construction | 2015 |
| BAXCO1211 Limited | Extraterritorial | 2011 |
| Baxter & BOO Ltd | Wholesale & retail | 2020 |
| Bayanat Systems Limited | Administrative & support | 2025 |
| Bazaar Collective Ltd | Wholesale & retail | 2025 |
| Bazyan Limited | Hospitality | 2018 |
| BB Brilliant Barbers Ltd | Other services | 2025 |
| BB Convenience Store Ltd | Wholesale & retail | 2024 |
| BB Empire Ltd | Wholesale & retail | 2024 |
| BB Group of Companies Ltd | Extraterritorial | 2024 |
| Bb's DCS Ltd | Administrative & support | 2020 |
| Bbdl (BD) Ltd | Hospitality | 2024 |
| Bbdl (BL) Ltd | Hospitality | 2024 |
| Bbep Holdings Limited | Financial services | 2022 |
| Bbhomeware Limited | Manufacturing | 2023 |
| BBN Associates Ltd | Wholesale & retail | 2022 |
| BBR Holdings Limited | Financial services | 2026 |
| BBS Huddersfield Ltd | Construction | 2025 |
| Bbsa (Black Business Support Agency) C.I.C. | Administrative & support | 2021 |
| Bbsq (BD) Ltd | Hospitality | 2024 |
| Bbsq (BL) Ltd | Hospitality | 2024 |
| BC Animation Ltd | Information & communication | 2025 |
| BC Company (Derby) Ltd | Wholesale & retail | 2024 |
| BCF Boards Ltd | Wholesale & retail | 2024 |
| BCN Private Limited | Transport & logistics | 2025 |
| BCS Recruitment Solutions Ltd | Administrative & support | 2011 |
| BD Commerce Ltd | Other services | 2021 |
| BD Digital Ltd | Information & communication | 2013 |
| BD Equine Ltd | Agriculture & fishing | 2018 |
| BD Gourmet Ltd | Hospitality | 2026 |
| BDG Bars Ltd | Hospitality | 2023 |
| BDH Couriers Limited | Wholesale & retail | 2025 |
| Bdrowe Consulting Ltd | Information & communication | 2024 |
| BDT Financial Services Ltd | Professional & scientific | 2018 |
| BDX Promotions Limited | Other services | 2020 |
| BE Fusion Limited | Manufacturing | 2024 |
| BE Rude NOT to Events Ltd | Hospitality | 2025 |
| BE VIP Aesthetic Ltd | Health & social care | 2023 |
| BE VIP Investments Ltd | Real estate | 2023 |
| BE VIP Property Management Ltd | Real estate | 2023 |
| BE Yoga Space Limited | Arts & recreation | 2024 |
| BE YOU Beauty Ltd | Other services | 2018 |
| Be&M Essentials Ltd | Wholesale & retail | 2025 |
| Beachside Holiday Lettings Limited | Hospitality | 2016 |