| Bradwell West Ltd | Mining & quarrying | 2023 |
| Brady Properties Limited | Real estate | 2025 |
| Braintree Land Limited | Construction | 2009 |
| Bralin Recruitment Limited | Administrative & support | 1999 |
| Brampton Legal Limited | Professional & scientific | 2018 |
| Brampton Performance Accessories Ltd | Other services | 2024 |
| Brand-Ahoy Limited | Wholesale & retail | 2012 |
| Braybella Aesthetics Limited | Other services | 2025 |
| Breaking Barriers Together Ltd | Health & social care | 2023 |
| Breeze Into Shape Ltd | Arts & recreation | 2022 |
| Brereton Consumables Limited | Administrative & support | 2019 |
| Brian Afwanda Ltd | Health & social care | 2020 |
| Brianharold Ltd | Professional & scientific | 2019 |
| Bridge House Barn Developments Limited | Construction | 2020 |
| Brigfield Limited | Real estate | 2022 |
| Bright Eyes Photography Limited | Professional & scientific | 2012 |
| Bright Stars Children Day Nursery Ltd. | Education | 2006 |
| Brighter Bills Limited | Wholesale & retail | 2009 |
| Brighter Futures House Limited | Health & social care | 2025 |
| Brightgrey Engineering Limited | Professional & scientific | 2013 |
| Brightgrey Retail Limited | Wholesale & retail | 2013 |
| Brightman Legal Ltd | Professional & scientific | 2024 |
| Brightshire Accountants Ltd | Professional & scientific | 2019 |
| Brine Hall Design Ltd | Professional & scientific | 2019 |
| Brit Fit Supplements UK Ltd | Wholesale & retail | 2024 |
| Britannia Ecological Solutions Ltd | Professional & scientific | 2014 |
| Brite Digital Ltd | Wholesale & retail | 2021 |
| Brite Spaces Ltd | Real estate | 2024 |
| British Society of Hearing AID Audiologists Limited | Other services | 1993 |
| Britton Residential Limited | Real estate | 2018 |
| Brittonhall Developments Limited | Construction | 2022 |
| Brix Systems Limited | Information & communication | 2026 |
| Broad Street Convenience Limited | Wholesale & retail | 2024 |
| Broadlands Holdings Limited | Financial services | 2016 |
| Brockley Farming Limited | Agriculture & fishing | 2018 |
| Bronington Business Services Limited | Professional & scientific | 2014 |
| Bronz'D Tanning Studio Ltd | Other services | 2024 |
| Bronze Cheshire Limited | Other services | 2024 |
| Brookbank Developments Ltd | Real estate | 2021 |
| Brookbank Farms Limited | Agriculture & fishing | 1998 |
| Brookhouse Agricultural Services Ltd | Manufacturing | 2002 |
| Brookhouse Garage (Wheelock) Limited | Wholesale & retail | 2020 |
| Brooklands Hough Management Company Limited | Households | 2000 |
| Brooklyns Limited | Other services | 2008 |
| Brooks Bros.(Wolverhampton)Limited | Wholesale & retail | 1961 |
| Brooks Metals & Waste Limited | Water & waste | 2002 |
| Brookshaw Minerals Ltd | Professional & scientific | 2023 |
| Brookside 2020 Group Ltd | Wholesale & retail | 2021 |
| Brookside Pet Food Ltd. | Wholesale & retail | 2012 |
| Brookson (5539I) Limited | Administrative & support | 2007 |
| Brookview Close Management Company Limited | Real estate | 2002 |
| Broomco (4266) Limited | Professional & scientific | 2013 |
| Broomfields Management Company (Esher) Limited | Real estate | 1986 |
| Brother Hair Style Crew Ltd | Other services | 2024 |
| Brough Technology Ltd | Information & communication | 2019 |
| Broughton Farm Barns Management Company Limited | Households | 2006 |
| Browny Rail Isolations Limited | Professional & scientific | 2017 |
| Brows & Beauty Cheshire Ltd | Education | 2022 |
| BRU Cafe and Coffee Ltd | Hospitality | 2020 |
| Brupac Drinks & Machine Company Ltd | Wholesale & retail | 1984 |
| Brupac Limited | Financial services | 2022 |
| Brynan Coppenhall Ltd | Professional & scientific | 2023 |
| BSB Wines Company Ltd | Wholesale & retail | 2026 |
| Bsmart Furniture Ltd | Wholesale & retail | 2024 |
| BTK Limited | Information & communication | 2022 |
| Btoh Ltd | Wholesale & retail | 2022 |
| Bubble Books Ltd | Information & communication | 2015 |
| Buchi & Associates Ltd | Health & social care | 2022 |
| Buckingham Road Houses (Wilmslow) Limited | Construction | 2023 |
| Buckley Foods Limited | Manufacturing | 2002 |
| Buckleys Bees Ltd | Agriculture & fishing | 2018 |
| Buckmore Ltd | Professional & scientific | 2021 |
| Budding-Uk Limited | Professional & scientific | 2019 |
| Buerton Old School Day Nursery Limited | Education | 2025 |
| Build-Rite (Cheshire) Ltd | Construction | 2008 |
| Buildapath Ltd | Information & communication | 2026 |
| Building Bigger Brands Limited | Professional & scientific | 2010 |
| Building the New Ltd | Professional & scientific | 2024 |
| Bulgarche Ltd | Education | 2019 |
| Bullen Design Co. Ltd | Professional & scientific | 2025 |
| Bultruck Ltd | Transport & logistics | 2019 |
| Bunz N Shakes Ltd | Hospitality | 2021 |
| Bunznshakes Crewe Ltd | Hospitality | 2025 |
| Buprintshop Ltd | Wholesale & retail | 2021 |
| Burcea Trans Ltd | Transport & logistics | 2019 |
| Burge Engineering Limited | Transport & logistics | 2015 |
| Burgess Repair Services Limited | Wholesale & retail | 2001 |
| Burglary Support Ltd | Information & communication | 2025 |
| Burland Coaches Limited | Extraterritorial | 2018 |
| Burland Day Trips and Tours Limited | Administrative & support | 2022 |
| Burland Group Limited | Extraterritorial | 2018 |
| Burlton Mill Limited | Real estate | 2023 |
| Burt's Cheese Limited | Manufacturing | 2016 |
| Busch GVT Limited | Manufacturing | 2006 |
| Buse Scientific Ltd | Wholesale & retail | 1983 |
| Business Boost Solutions Ltd | Administrative & support | 2026 |
| Business Connection Solutions Limited | Information & communication | 2009 |
| Business Lens Ltd | Information & communication | 2026 |
| Butterfly Jasmin Limited | Information & communication | 2025 |
| Buxton Management Services Ltd | Professional & scientific | 1998 |