| Bagots Leisure Limited | Administrative & support | 2015 |
| Bailey & Bowes Ltd | Administrative & support | 2025 |
| Bailmark Homes Ltd | Real estate | 2020 |
| Ballards FS Limited | Administrative & support | 2015 |
| Ballards Ventures Limited | Administrative & support | 2022 |
| Ballidon Ltd | Manufacturing | 2021 |
| Bamson Property Limited | Financial services | 2024 |
| Banner Foods (Bromsgrove) Limited | Administrative & support | 1998 |
| Bannuttree Landscaping and Gardening Services Limited | Administrative & support | 2021 |
| Barbertown (Droitwich) Ltd | Other services | 2023 |
| Barbourne Management Company Limited | Households | 2007 |
| Barc International Limited | Wholesale & retail | 2016 |
| Barnett Property Group Limited | Real estate | 2015 |
| Bart River Services Ltd | Professional & scientific | 2018 |
| Based Homes Limited | Administrative & support | 2024 |
| Baskerville Hall Hotel Limited | Hospitality | 2005 |
| Batco Ltd | Administrative & support | 2024 |
| Bay HH Ltd | Real estate | 2015 |
| Bayley Communications Ltd | Administrative & support | 2011 |
| Bayswater Interiors Ltd | Professional & scientific | 2023 |
| Baytree Automotive Ltd | Wholesale & retail | 2025 |
| BB Willis Investments Ltd | Financial services | 2022 |
| Bbsab Ltd | Construction | 2021 |
| BBT Gritting Holdings Limited | Administrative & support | 2020 |
| BBT Property Holdings UK Limited | Real estate | 2018 |
| BBT Ventures Limited | Other services | 2026 |
| BC Electrical & Security Ltd | Construction | 2020 |
| BDP Fleetcare Limited | Wholesale & retail | 2020 |
| BDR Homes Limited | Real estate | 2019 |
| BDR Lets Ltd | Real estate | 2024 |
| BDS Contracting Group Limited | Financial services | 2021 |
| BDS Contracting Limited | Financial services | 2016 |
| BDS Contracting Solutions LLP | | 2015 |
| BDS Developments (Shottle) Limited | Construction | 2021 |
| BDS Global Limited | Information & communication | 2015 |
| BDS Rail Ltd | Extraterritorial | 2019 |
| BE Home Properties Ltd | Real estate | 2024 |
| BE Less Robot Ltd | Education | 2024 |
| Beacon Advisory Services Ltd | Professional & scientific | 2025 |
| Beaconsfield Holdings Limited | Financial services | 2025 |
| Beaconsfield Plumbing Limited | Construction | 2018 |
| Bealolly Ltd | Financial services | 2022 |
| Beamview Property Limited | Real estate | 2026 |
| Bedrock Property Development Ltd | Construction | 2022 |
| BEE Hive Bits Limited | Manufacturing | 2015 |
| Beeido Limited | Information & communication | 2022 |
| Beko Technologies Limited | Manufacturing | 1988 |
| Belmont Artists Limited | Arts & recreation | 2010 |
| Belmont Business Investments Limited | Administrative & support | 2019 |
| Belson & Clarabel Ltd | Real estate | 2023 |
| Belvedere Property Midlands Limited | Real estate | 2020 |
| Bennett and Jones Limited | Other services | 2010 |
| Bennett's Auto's Limited | Wholesale & retail | 2022 |
| Bermia IT Ltd | Professional & scientific | 2021 |
| Berrow Hill Consulting Limited | Administrative & support | 2014 |
| Berry Hill MOT Centre Limited | Wholesale & retail | 2023 |
| BES Cash Registers Limited | Administrative & support | 2011 |
| Bespoke Gate Solutions Ltd | Professional & scientific | 2021 |
| Bespoke in the Cotswolds Ltd | Manufacturing | 2016 |
| Bespoke Metal Solutions Limited | Manufacturing | 2020 |
| Bespoke Posts Limited | Manufacturing | 2016 |
| BETCHA1975 Productions Limited | Extraterritorial | 2026 |
| Betr Property Management Limited | Real estate | 2026 |
| Better Happy Limited | Health & social care | 2020 |
| Better Than Ltd | Wholesale & retail | 2025 |
| Betts Flooring Limited | Construction | 2004 |
| Beyza Ltd | Hospitality | 2018 |
| Big Bear Plastic Products Limited | Manufacturing | 1998 |
| Big COX Productions Ltd | Arts & recreation | 2014 |
| Big D Music Limited | Information & communication | 2022 |
| Bill Drew Limited | Financial services | 2018 |
| Bio-Circle Surface Technology Ltd | Manufacturing | 2009 |
| Bionic Ruffians Create Ltd | Information & communication | 2025 |
| Birch & Co Accounting Ltd | Professional & scientific | 2026 |
| Birmingham Amputee Clinic Ltd | Health & social care | 2019 |
| Birmingham Colorectal Ltd | Health & social care | 2019 |
| Birmingham EAR Clinic Limited | Health & social care | 2012 |
| Birmingham TMJ Ltd | Health & social care | 2016 |
| Bishops Hall Enterprises LLP | | 2021 |
| Bitcoin Tax Advisory Services Limited | Construction | 2018 |
| Bitstore Limited | Wholesale & retail | 1996 |
| Black Advisory Limited | Professional & scientific | 2019 |
| Black Arrow Solutions Ltd | Other services | 2026 |
| Black Country Pallets (Midlands) Limited | Other services | 2018 |
| Black Lantern Group Ltd | Wholesale & retail | 2026 |
| Black Pear Electrical Limited | Construction | 2013 |
| Blackbloors Limited | Hospitality | 2019 |
| Blackstone Property Search Limited | Real estate | 2024 |
| Blanche & George Enterprises Ltd | Arts & recreation | 2015 |
| Blanchflower Consultants Limited | Professional & scientific | 2023 |
| Blink Network Solutions Ltd | Construction | 2025 |
| Blitsquake Ltd | Transport & logistics | 2020 |
| Bloom Hair Ltd | Other services | 2020 |
| Blue Banana Trading Ltd | Wholesale & retail | 2024 |
| Blue Door Fleet Services Limited | Wholesale & retail | 2024 |
| Blue Door Transport Group Limited | Administrative & support | 2020 |
| Blue EYE Software Limited | Information & communication | 2002 |
| Blue Food Box Limited | Hospitality | 2024 |
| Blue Horizon ( Pershore ) Limited | Construction | 2016 |
| Blue Horizon (Holyrood House) 2 Limited | Real estate | 2022 |