| Bridge Street UK Motor Repairs Ltd | Manufacturing | 2023 |
| Brierley Pressings Limited | Manufacturing | 2009 |
| Bright Lemon Consulting Ltd | Extraterritorial | 2023 |
| Brighter Business UK Limited | Professional & scientific | 2012 |
| Brighton New Homes Limited | Extraterritorial | 2016 |
| Brinbirch Limited | Real estate | 1961 |
| Brindley Estates Limited | Construction | 2012 |
| Brinton Family Investments Limited | Financial services | 2024 |
| Brit Heat Renewables Ltd | Construction | 2025 |
| Brit U Switch Ltd | Construction | 2019 |
| Britfloor Solutions Ltd | Wholesale & retail | 2026 |
| Broadlands Investments 2 Limited | Real estate | 2025 |
| Broadlands Investments Limited | Real estate | 2025 |
| Broadway Construction (West Midlands) Limited | Real estate | 1975 |
| Brodan Consulting Ltd | Professional & scientific | 2018 |
| Broker Deals Limited | Wholesale & retail | 2022 |
| Bromsgrove Windows & Conservatories Ltd | Manufacturing | 2011 |
| Brookvale Lettings Limited | Hospitality | 2025 |
| Brookvale Partners Limited | Real estate | 2025 |
| Broomhallgroup Ltd | Administrative & support | 2026 |
| Brostem Medical Limited | Public administration | 2022 |
| Browns Installation & Maintenance Services Limited | Manufacturing | 2021 |
| Browns the Barbers (Hunnington) Limited | Other services | 2016 |
| Browns the Barbers Ltd | Other services | 2015 |
| Bryant Priest Newman Limited | Professional & scientific | 2001 |
| Bryn Melyn Care Limited | Health & social care | 2007 |
| Bstd Properties Ltd | Real estate | 2023 |
| BSW Chef Limited | Hospitality | 2026 |
| BSW Enterprises Ltd | Arts & recreation | 2024 |
| BTF Cleaning Services Limited | Administrative & support | 2002 |
| Buck Property Solutions Ltd | Real estate | 2026 |
| Build Smart Logistics Ltd | Transport & logistics | 2024 |
| Builders Mart Ltd | Construction | 2024 |
| Building Capability Group Limited | Professional & scientific | 2025 |
| Building Enhancements Limited | Real estate | 2025 |
| Building Solutions Midlands Limited | Construction | 2023 |
| Bulk Pack Limited | Administrative & support | 2008 |
| Bull Construction Limited | Construction | 1973 |
| Bumpfy Estates Limited | Real estate | 2015 |
| Bunpops Ltd | Wholesale & retail | 2025 |
| Bursa Group Limited | Information & communication | 2026 |
| Burton Motors Limited | Wholesale & retail | 2003 |
| Business and Industry Today Limited | Information & communication | 2005 |
| Business Commercial Finance Ltd | Financial services | 2004 |
| Business Property Services Limited | Real estate | 1997 |
| Buswin Limited | Hospitality | 2004 |
| Butchers Own Ltd | Wholesale & retail | 2017 |
| Butlers of Oldbury Ltd | Transport & logistics | 2010 |
| Buttercups Day Care Nursery Ltd | Education | 2012 |
| BWP Technical Services Limited | Extraterritorial | 1988 |
| Byrne Dean Limited | Administrative & support | 2003 |
| Byron Park Properties Limited | Real estate | 2005 |
| C & S Duncan Property Limited | Real estate | 2016 |
| C Bailey Limited | Professional & scientific | 2014 |
| C Bond Consultancy Limited | Administrative & support | 2022 |
| C F E Stockholders Limited | Professional & scientific | 1939 |
| C F Education Limited | Health & social care | 1997 |
| C F Social Work Limited | Health & social care | 2006 |
| C L Consulting Services Limited | Professional & scientific | 2016 |
| C M Holdings Midlands Ltd | Real estate | 2022 |
| C P Fabs Limited | Manufacturing | 2004 |
| C Sense Commercial Limited | Real estate | 2025 |
| C Sense Property Limited | Real estate | 2024 |
| C Sense Training Limited | Education | 2019 |
| C W Capital Limited | Financial services | 2023 |
| C.E.L. Property Limited | Real estate | 2024 |
| C.E.P Services and Maintenance Ltd | Construction | 2022 |
| C.P. Insulations Limited | Construction | 2018 |
| Cable Lynx Solutions Ltd | Information & communication | 2022 |
| Cacoullis (Halesowen) Ltd | Wholesale & retail | 2020 |
| Cadservus Ltd | Other services | 2007 |
| CAE Fron Limited | Hospitality | 2021 |
| Caerulean Horizons Limited | Other services | 2016 |
| Calbid Limited | Wholesale & retail | 2019 |
| Calcot Recruitment Ltd | Administrative & support | 2015 |
| Calderbrook Properties Limited | Real estate | 2021 |
| Caleb Components Limited | Wholesale & retail | 2003 |
| Caledonia Midlands Limited | Households | 2021 |
| Caliber Collectibles Ltd | Wholesale & retail | 2026 |
| Calladine Pharmaceuticals Ltd | Manufacturing | 2020 |
| Calm Storm Games Ltd | Manufacturing | 2020 |
| Calsav Limited | Real estate | 2021 |
| Calztec FM Ltd | Construction | 2018 |
| Cameron Clark Golf Performance Limited | Education | 2020 |
| Camguru Limited | Education | 2026 |
| Camille Dizy Photography Limited | Professional & scientific | 2021 |
| Campbell-Whyte Properties Limited | Extraterritorial | 2014 |
| Camtel Associates Ltd | Information & communication | 2005 |
| Candela Couture Ltd | Other services | 2023 |
| Candy Carts Ltd | Extraterritorial | 2013 |
| Capital Car Spares Ltd | Wholesale & retail | 2002 |
| Car Body Clinic A&E Ltd | Wholesale & retail | 2020 |
| Car Care Services Limited | Wholesale & retail | 1977 |
| Car Wash Micutu Ltd | Other services | 2025 |
| Cards and Boxes Ltd | Wholesale & retail | 2026 |
| Cards TCG Limited | Wholesale & retail | 2025 |
| Care 4 Sure Stourbridge, Hagley & Halesowen Ltd | Health & social care | 2024 |
| Care Association Alliance | Other services | 2015 |
| Care at Heart Home Services Ltd | Health & social care | 2020 |
| Caring Sharing Project Ltd. | Agriculture & fishing | 2017 |