| Avora Mart Ltd | Wholesale & retail | 2025 |
| Avtar and Sons Transport Ltd | Transport & logistics | 2024 |
| Avtar Cargo Ltd | Transport & logistics | 2024 |
| Avtar Transport Ltd | Transport & logistics | 2018 |
| Awal Hamilton Consultancy Limited | Administrative & support | 2025 |
| Awan Golbal Ventures Ltd | Wholesale & retail | 2026 |
| Awbridge Properties Limited | Real estate | 2024 |
| Awira Ltd. | Wholesale & retail | 2025 |
| AWT Creative Limited | Information & communication | 2020 |
| Axle Transport Ltd | Transport & logistics | 2026 |
| Aydos Ltd | Wholesale & retail | 2024 |
| Ayshah Consulting Ltd | Other services | 2019 |
| Ayve Homes Ltd | Real estate | 2025 |
| Az-Aluma Textile Ltd | Administrative & support | 2009 |
| B & G Liquor Stores Ltd | Wholesale & retail | 2002 |
| B E Builders Ltd | Construction | 2024 |
| B G Plastering Midlands Ltd | Construction | 2021 |
| B Kaur Constructions Ltd | Construction | 2020 |
| B&M International Ltd | Hospitality | 2025 |
| B&R Security Ltd | Administrative & support | 2026 |
| B&T Construction Services Ltd | Construction | 2026 |
| B-Cutz Ltd | Other services | 2023 |
| B.E Renovations Ltd | Real estate | 2017 |
| B.M Supplier Ltd | Wholesale & retail | 2024 |
| B.S.G. Construction Limited | Construction | 2016 |
| B.S.G. Contract Management Limited | Professional & scientific | 2019 |
| B1 Construction Midlands Ltd | Construction | 2020 |
| Bablo Homes Ltd | Real estate | 2023 |
| Babs Care Limited | Health & social care | 2011 |
| Baby Collections Ltd | Wholesale & retail | 2023 |
| Baby Kaur Ltd | Wholesale & retail | 2023 |
| Bacaba Cocktail Bar and Dining Limited | Hospitality | 2015 |
| Bachni Devi Food Ltd | Hospitality | 2025 |
| BAD N Beauty Ltd | Other services | 2023 |
| Bahl Businesspartners Acquisition Ltd | Real estate | 2025 |
| Bahl Businesspartners UK Ltd | Professional & scientific | 2018 |
| Bailey HR Group Limited | Administrative & support | 2026 |
| Bains Transport Heathrow Ltd | Administrative & support | 2017 |
| Bains UK Builder Ltd | Construction | 2021 |
| Bajwa & Najran Group Ltd | Financial services | 2023 |
| Bakaware Limited | Professional & scientific | 1990 |
| Balakut Transport Limited | Transport & logistics | 2016 |
| Balansis Limited | Wholesale & retail | 2025 |
| Ballers United Midlands CIC | Education | 2025 |
| Balmoral U.K. Limited | Wholesale & retail | 1992 |
| Balrey Screen Printing Limited | Manufacturing | 1992 |
| Balu Cars Ltd | Wholesale & retail | 2026 |
| Balé Artisano Limited | Manufacturing | 2023 |
| Bamber M Limited | Wholesale & retail | 2025 |
| Banga Builders Ltd | Construction | 2018 |
| Bapu Reddy United Holdings Limited | Real estate | 2022 |
| Barna Andreea Limited | Transport & logistics | 2024 |
| Barnford Crescent 1961 Limited | Extraterritorial | 2014 |
| Barnshaw Bending Centre Limited | Manufacturing | 1990 |
| Barnshaw Plate Rollers Limited | Manufacturing | 1989 |
| Barology Limited | Hospitality | 2019 |
| Barrett and Co Studio Ltd | Professional & scientific | 2026 |
| Barri Davies Holdings Limited | Financial services | 2025 |
| Bars (Commercial) Ltd | Hospitality | 2022 |
| Bartex Limited | Wholesale & retail | 2016 |
| Basmah Ltd | Wholesale & retail | 2021 |
| Basra Home Construction Ltd | Construction | 2026 |
| Bastian Management Limited | Other services | 2016 |
| Bastian Services Limited | Professional & scientific | 2022 |
| Bastian Wealth Management Limited | Other services | 2016 |
| Bath Street Building Limited | Real estate | 2026 |
| BBN Services Ltd | Real estate | 2020 |
| BBZ 680 Limited | Hospitality | 2021 |
| BCC Online Ltd | Wholesale & retail | 2026 |
| BCH Support Solutions Ltd | Real estate | 2025 |
| BD Consultancy Services Limited | Health & social care | 2025 |
| BDH Landbuild Ltd | Construction | 2019 |
| BEA Healthprof Limited | Health & social care | 2016 |
| Beacon Line Ltd | Transport & logistics | 2026 |
| Beacon Trade & Tool Hire Limited | Wholesale & retail | 1994 |
| Beacon Vehicle Solutions Limited | Wholesale & retail | 2024 |
| Beast Rage Ltd | Wholesale & retail | 2022 |
| Beazley T Limited | Wholesale & retail | 2025 |
| Becham Transport Ltd | Transport & logistics | 2021 |
| BED Frame Warehouse Limited | Manufacturing | 2022 |
| Bedbay Limited | Administrative & support | 2016 |
| Bedi Construction Services Limited | Construction | 2025 |
| BEE ALL YOU CAN BEE Ltd | Hospitality | 2025 |
| Behayum Market Ltd | Wholesale & retail | 2026 |
| Behvand Property Ltd | Real estate | 2024 |
| Bela-Olivia Property Limited | Real estate | 2018 |
| Bennett J Limited | Wholesale & retail | 2020 |
| Benstays Limited | Real estate | 2026 |
| Bentley House (Atherstone) Limited | Health & social care | 2014 |
| Bentley House (Holdings) Limited | Financial services | 2024 |
| Bentley House (Stratford) Limited | Health & social care | 2014 |
| Bentley House Close Care Limited | Health & social care | 1987 |
| Bentley House Limited | Health & social care | 1991 |
| Bentley House Management Limited | Construction | 1984 |
| Berachah Care Limited | Health & social care | 2022 |
| Berkaan Logistics Ltd | Transport & logistics | 2024 |
| Berryley Limited | Wholesale & retail | 2016 |
| Berrylike Limited | Hospitality | 2025 |
| Bertrandt Technology UK Ltd | Information & communication | 2015 |
| Bertrandt UK Limited | Administrative & support | 1995 |