| Best Visa & Immigration Consultancy Ltd | Information & communication | 2016 |
| Betalite Holdings Ltd | Administrative & support | 2022 |
| Bevlyn Limited | Water & waste | 1995 |
| BFG Lettings Ltd | Hospitality | 2025 |
| BG Green Investments Ltd | Households | 2024 |
| Bhandal Facial Aesthetics Limited | Health & social care | 2020 |
| Bhandal Group LLP | | 2019 |
| Bhandal Property Developments Limited | Construction | 2015 |
| Billinov Holdings Limited | Financial services | 2026 |
| Birmingham Reptiles and Pets Limited | Wholesale & retail | 2015 |
| Bison Engineering Services (UK) Ltd | Manufacturing | 2019 |
| Black Country Alloys Limited | Extraterritorial | 2018 |
| Black Country Clearances Ltd | Transport & logistics | 2023 |
| Black Country Joinery Ltd | Administrative & support | 2022 |
| Black Country Local Limited | Professional & scientific | 2010 |
| Black Country Pipelines Limited | Construction | 2026 |
| Black Country Service Solutions Ltd | Other services | 2019 |
| Black Pear Ltd | Manufacturing | 2019 |
| Blackrook Academy Ltd | Education | 2018 |
| Blackstone Carpentry Contractors Ltd | Construction | 2025 |
| Blessd Limited | Wholesale & retail | 2005 |
| Bliss & Bliss Hair Ltd | Other services | 2017 |
| Blockland Acquisitions Ltd | Real estate | 2021 |
| Blockland Holdings Ltd | Financial services | 2026 |
| Blood Analysis Practitioners Programme Ltd | Health & social care | 2023 |
| BLS Subco Ltd | Construction | 2018 |
| Blue Fish Water Management Limited | Professional & scientific | 2015 |
| Blue Serenity Ltd | Other services | 2020 |
| Blueprint Business Coaching Limited | Professional & scientific | 2019 |
| Blush Touch Ltd | Other services | 2022 |
| BM Goalkeeping Limited | Wholesale & retail | 2021 |
| BOA House Ltd | Hospitality | 2022 |
| Boardroom Buddies Ltd | Professional & scientific | 2011 |
| Bold in Business Ltd | Administrative & support | 2022 |
| Bookkeeping Boutique Ltd | Professional & scientific | 2015 |
| Boomer Estates Ltd | Real estate | 2023 |
| Borche Machinery (UK) Co., Limited | Wholesale & retail | 2016 |
| Born to Reign Ltd | Wholesale & retail | 2023 |
| Bostin Bargains Limited | Extraterritorial | 2021 |
| Bourne Lift Services Ltd | Extraterritorial | 2026 |
| BOURNE2CARE Limited | Health & social care | 2013 |
| Bowling Limited | Extraterritorial | 2007 |
| BPN Small Projects Limited | Professional & scientific | 2007 |
| BPT Utilities Limited | Construction | 2026 |
| Bradbury International U.K. Limited | Manufacturing | 2000 |
| Braithwaites Properties Ltd | Real estate | 2019 |
| Bramley Branch Carpentry Ltd | Manufacturing | 2026 |
| Brickskin Facades Ltd | Wholesale & retail | 2026 |
| Bridgelodge Property Management Limited | Real estate | 2004 |
| Brighter Artemis Ltd | Hospitality | 2026 |
| Brigstock Dairies Limited | Wholesale & retail | 2005 |
| Brinkley Events Ltd | Hospitality | 2022 |
| Britannia Promotion UK Ltd | Professional & scientific | 2009 |
| BRO Naturel Limited | Wholesale & retail | 2022 |
| Broadchimneys Ltd | Real estate | 2022 |
| Broadfield House Freeholders Management Company Limited | Households | 2022 |
| Bromley Properties Management Ltd | Real estate | 2022 |
| Bronze Beauty Tanning Ltd | Other services | 2025 |
| Brooklands Family Butchers Ltd | Wholesale & retail | 2023 |
| Brookson (5222K) Limited | Administrative & support | 2007 |
| Brpd Services Ltd | Administrative & support | 2024 |
| Brynels Hats & Accessories Ltd | Wholesale & retail | 2009 |
| BS1 Barbershop Ltd | Other services | 2017 |
| BS4 Barbershop Ltd | Other services | 2017 |
| Bubble Inn Stenson Limited | Hospitality | 1987 |
| Buildbud Ltd | Construction | 2025 |
| Building Plastic Supplies Ltd | Wholesale & retail | 2023 |
| Building Trade Services Ltd | Extraterritorial | 2020 |
| Bulldog Metal Products Limited | Manufacturing | 2020 |
| Butler and Bullock Limited | Agriculture & fishing | 2017 |
| C & C Enterprise Ltd | Hospitality | 2024 |
| C & M Holding Limited | Real estate | 2009 |
| C & M Steel Construction Limited | Construction | 2000 |
| C & S Properties Midlands Ltd | Real estate | 2024 |
| C & T Knights Limited | Wholesale & retail | 2023 |
| C R Stores Limited | Wholesale & retail | 2017 |
| C T M Roofing Services Ltd | Construction | 2024 |
| C&J Interiors Ltd | Construction | 2026 |
| C&M Mcdonald Ltd | Information & communication | 2025 |
| C&M Utilities Ltd | Construction | 2026 |
| C. Wright Construction Limited | Construction | 1999 |
| C.P.Bolland & SON Limited | Agriculture & fishing | 1960 |
| CAD Scaff Limited | Construction | 2008 |
| Cadman Developments (2005) Limited | Construction | 2005 |
| Cajones Associates Ltd | Information & communication | 2012 |
| Camis Electronics Limited | Manufacturing | 2003 |
| Camperhub Ltd | Manufacturing | 2024 |
| Canine Secure Ltd | Other services | 2024 |
| Canning Industrial Doors Ltd | Construction | 2015 |
| Cannon Dance Academy Ltd | Other services | 2016 |
| Capalaba Properties Ltd | Real estate | 2025 |
| Capelli Hairdressing (West Midlands) Ltd | Other services | 2026 |
| Capital Energy Management Limited | Professional & scientific | 2026 |
| Capitol Way Estate Management Limited | Real estate | 2015 |
| Car Part Shop Ltd | Wholesale & retail | 2023 |
| Car Services Tipton Limited | Wholesale & retail | 2016 |
| Car Tech MOT & Service Centre Ltd | Wholesale & retail | 2024 |
| Carehive Ltd | Professional & scientific | 2026 |
| Carico Parma Limited | Hospitality | 2018 |
| Carl Westwood Building Services & Landscaping Ltd | Construction | 2010 |