| Birmingham Tiling Specialists Ltd | Administrative & support | 2016 |
| Black Camel Media Ltd | Professional & scientific | 2017 |
| Black Heart Collective Ltd | Other services | 2024 |
| Blackstone Business Group Limited | Professional & scientific | 2017 |
| Blake Property Investments Limited | Real estate | 2008 |
| Blakk Ltd | Professional & scientific | 2012 |
| Blithfield Events Ltd | Administrative & support | 2001 |
| Blithfield Lakeside Barns Ltd | Hospitality | 2023 |
| Blithfield Leisure Ltd | Hospitality | 2018 |
| Blithfield Sailing Club Limited | Arts & recreation | 2023 |
| Blmg Properties Limited | Real estate | 2021 |
| Block Liquidity Ltd | Information & communication | 2023 |
| Blokes (Lichfield) Limited | Other services | 2019 |
| Bloomsbury Property Investments Limited | Real estate | 2022 |
| Blue Cuboid Ltd | Real estate | 2022 |
| Bluefish Leisure Ltd | Wholesale & retail | 2025 |
| Blueprint Designs (Rugeley) Ltd | Wholesale & retail | 2021 |
| Bluewave Process Consulting Ltd | Professional & scientific | 2025 |
| BMR Motorsport Limited | Arts & recreation | 2023 |
| Bog-Br CTR Limited | Construction | 2019 |
| Bohus Limited | Real estate | 2019 |
| Bollegraaf U.K. Limited | Manufacturing | 1989 |
| Bolt Accounts Limited | Professional & scientific | 2019 |
| Book Club Racing Limited | Arts & recreation | 2016 |
| Border Collie Trust (Great Britain) | Professional & scientific | 1996 |
| Boss Roofing and Cladding Limited | Construction | 2023 |
| Bouden Motors Ltd | Wholesale & retail | 2024 |
| Boulton Landscapes Ltd | Administrative & support | 2017 |
| Brackendale Timber Products Limited | Manufacturing | 2019 |
| Brad Freeman Racing Limited | Arts & recreation | 2018 |
| Bradley Lakes Turf and Landscapes Limited | Administrative & support | 2003 |
| Bradley T Smith Composites Ltd | Manufacturing | 2024 |
| Brain Shaker Productions Ltd | Information & communication | 2025 |
| Brandons (Hamley) Limited | Transport & logistics | 2003 |
| Brereton Enterprise Ltd | Wholesale & retail | 2017 |
| Brereton House Management Limited | Other services | 1986 |
| Brereton Surgery GPF Limited | Professional & scientific | 2013 |
| Brewery Cottages Management Ltd | Real estate | 2016 |
| Brewerystreetshoppingcentre Ltd | Real estate | 2022 |
| Brick Brothers Ltd | Construction | 2020 |
| Bricks Galore Limited | Wholesale & retail | 2012 |
| Bright Rainbows Ltd | Other services | 2018 |
| Brill Catering Ltd | Manufacturing | 2024 |
| Brisbane Developments Limited | Construction | 2012 |
| Britain Experience Ltd | Arts & recreation | 2025 |
| Britannia Leisure Buildings Limited | Construction | 2025 |
| British Bespoke Limited | Wholesale & retail | 2015 |
| BRM Transport Ltd | Transport & logistics | 2017 |
| Bromley Hays Limited | Construction | 2002 |
| Bromley Hays Projects Limited | Construction | 2009 |
| Bromley Hays Property LLP | | 2012 |
| Bronze & Beauty Tanning Studio Rugeley Ltd | Other services | 2025 |
| Brooklands Fabrications Ltd | Manufacturing | 2024 |
| Broomy Fields Management Limited | Households | 2004 |
| Brown & Brown Construction Services Ltd | Professional & scientific | 2015 |
| Brownies Beef Limited | Agriculture & fishing | 2021 |
| BRT Media Ltd | Manufacturing | 2026 |
| Btrda Limited | Arts & recreation | 2001 |
| Build Your Rooms Ltd | Construction | 2016 |
| Building & Contract Services (Midlands) Ltd | Construction | 2017 |
| Building Metrics Ltd | Professional & scientific | 2024 |
| Building Metrix Ltd | Administrative & support | 2024 |
| Bulldog Gear Ltd | Manufacturing | 2011 |
| Bulldog Group Ltd | Professional & scientific | 2014 |
| Bulldog IP Co Ltd | Manufacturing | 2022 |
| Bulldog Manufacturing Co Ltd | Administrative & support | 2020 |
| Bulldog Trading Ltd | Administrative & support | 2022 |
| Burve Ltd | Information & communication | 2015 |
| BW Transformation & Consultation Limited | Administrative & support | 2024 |
| Bwac Ltd | Construction | 2021 |
| Byte TM Ltd | Information & communication | 2018 |
| C & a Agricultural Contractors Limited | Agriculture & fishing | 2003 |
| C & C Unique Care Solutions Ltd | Health & social care | 2020 |
| C & R Furnishings Limited | Other services | 2020 |
| C B Builders Limited | Construction | 2016 |
| C Elwell Transport Limited | Professional & scientific | 2002 |
| C J Procurement Ltd | Administrative & support | 2018 |
| C M Derry Electrical Ltd | Construction | 2024 |
| C Residential Limited | Real estate | 2002 |
| C Romeo Brickwork Ltd | Construction | 2012 |
| C&R Construction Staffs Limited | Construction | 2019 |
| C. Elwell Transport (Repairs) Limited | Wholesale & retail | 1985 |
| C. Z. P. Services Limited | Transport & logistics | 2014 |
| C.Hill Construction Ltd | Construction | 2021 |
| Cadenza Consulting Limited | Professional & scientific | 2023 |
| Cafe RU 1086 Limited | Hospitality | 2025 |
| Cajs Services Ltd | Administrative & support | 2025 |
| Calare Property Holdings Ltd | Real estate | 2025 |
| Calibration Control Ltd | Professional & scientific | 2012 |
| Calisi Ltd | Construction | 2025 |
| Callisto Regulatory Consulting Limited | Professional & scientific | 2003 |
| Calls Recruitment Ltd | Administrative & support | 2016 |
| Calls Tractor & Equipment Hire Limited | Administrative & support | 2019 |
| Callsafe Services Limited | Administrative & support | 1987 |
| Caltech Computing Limited | Information & communication | 1998 |
| Cannock Chase Cycle Centre Ltd | Arts & recreation | 2006 |
| Cannock Chase Holiday Cottages Ltd. | Real estate | 2012 |
| Capeland Limited | Construction | 1994 |
| Car Camera RIG Ltd | Professional & scientific | 2015 |
| Caradell Holdings Limited | Professional & scientific | 2006 |