| Attwoods (London) Limited | Professional & scientific | 2017 |
| Attwoods Business Services Limited | Professional & scientific | 2010 |
| Attwoods CCA Limited | Professional & scientific | 2014 |
| AU Swain Ltd | Administrative & support | 2021 |
| Audioprecenter Ltd | Administrative & support | 2019 |
| Aurora Marketing Solutions Limited | Professional & scientific | 2015 |
| Avantix Limited | Information & communication | 2021 |
| AVE Property Investments Limited | Real estate | 2020 |
| Averisbox Ltd | Wholesale & retail | 2019 |
| Avon Navigation Trust | Transport & logistics | 1965 |
| Avonbank Engineering Services Limited | Manufacturing | 2005 |
| Avonreach Academy Trust | Education | 2011 |
| Avonvale Plant & Building Services Limited | Construction | 1947 |
| Avonvale Plumbing Services Ltd | Construction | 2015 |
| AWD Engineering Ltd | Administrative & support | 2017 |
| B&H Cars (Worcester) Ltd | Transport & logistics | 2017 |
| B.L.A. Limited | Transport & logistics | 1978 |
| Bagonip Ltd | Wholesale & retail | 2019 |
| Bakerblue Limited | Agriculture & fishing | 2009 |
| Barke Brothers Limited | Health & social care | 1996 |
| Barnett and Grove Limited | | 1975 |
| Barpro Racking Ltd | Wholesale & retail | 2020 |
| Battenhall Limited | Other services | 2012 |
| Bay Tree Creative Limited | Professional & scientific | 2018 |
| Bear-Books Ltd | Wholesale & retail | 2020 |
| Beautiful Dogs (Pershore) Limited | Other services | 2014 |
| Beckman Consulting Ltd | Professional & scientific | 2025 |
| Beds & Chairs Direct Ltd | Wholesale & retail | 2012 |
| Belly Active Ltd | Wholesale & retail | 2025 |
| BEP Solutions Limited | Professional & scientific | 2001 |
| Best Area Magazines Limited | Information & communication | 2009 |
| Best Consultancy Ltd | Professional & scientific | 2023 |
| Bestcoldproducts Ltd | Administrative & support | 2019 |
| Better Gardens Limited | Administrative & support | 2021 |
| Beyond the Hoard CIC | Information & communication | 2025 |
| Beyond Thinking Limited | Professional & scientific | 2019 |
| Bezarti Ltd | Professional & scientific | 2020 |
| BG Events Bars Ltd | Hospitality | 2026 |
| Bircher Build Ltd | Construction | 2022 |
| Birmingham Avionics Limited | Extraterritorial | 1983 |
| Bishopshire Limited | Construction | 1979 |
| Black & White Machinery UK Limited | Wholesale & retail | 2018 |
| Blackstone Independent Financial Advisers (Midlands) Limited | Financial services | 2012 |
| Blackthorne Carriage Company Ltd | Agriculture & fishing | 2021 |
| Blank Box Ltd | Professional & scientific | 2020 |
| Bleach of Lavant Limited | Transport & logistics | 1955 |
| Blighty and Beyond Ltd | Administrative & support | 2019 |
| Blissful Miracles Ltd | Professional & scientific | 2014 |
| Blue Bird Financial Ltd | Administrative & support | 2020 |
| Blue Charm Ventures Ltd | Financial services | 2025 |
| Blue FOX Homes Ltd | Real estate | 2023 |
| Blue Sky Finance Limited | Professional & scientific | 2010 |
| Blue Sky Leasing Limited | Extraterritorial | 2012 |
| Blue Sky Rentals Limited | Extraterritorial | 2010 |
| Bluebell Wholesale Limited | Administrative & support | 2008 |
| Bluebrick Studios Limited | Professional & scientific | 2014 |
| Bluegate AI Limited | Information & communication | 2025 |
| Bluetaker Ltd | Wholesale & retail | 2018 |
| Bluewater Portfolio Limited | Professional & scientific | 2015 |
| Bmct Services Limited | Other services | 1996 |
| BMH Cars Limited | Wholesale & retail | 2015 |
| Bonidice Ltd | Wholesale & retail | 2018 |
| Bonnie Cookson Limited | Administrative & support | 2025 |
| Boomerb Limited | Wholesale & retail | 1997 |
| Boragememo Ltd | Transport & logistics | 2020 |
| Bosiny Surf Limited | Manufacturing | 2022 |
| Bottld Limited | Professional & scientific | 2025 |
| Bounce and BOP Ltd | Education | 2025 |
| BOW Brook Farm Limited | Wholesale & retail | 2009 |
| Bowbrook Engineering Limited | Manufacturing | 2006 |
| Boyd Holdings (UK) Limited | Professional & scientific | 2007 |
| Boyd Strauss Limited | Administrative & support | 2015 |
| Bramblezith Ltd | Administrative & support | 2024 |
| Bredon Hill Organics Limited | Agriculture & fishing | 2013 |
| Bredonvale Technologies Limited | Professional & scientific | 2015 |
| Brev Drageren Ltd | Transport & logistics | 2022 |
| Brew & EAT Ltd | Extraterritorial | 2019 |
| Brexcorium Ltd | Administrative & support | 2024 |
| Brickyard Lane Management Company Limited | Households | 2017 |
| Broadway Heritage Limited | Construction | 2005 |
| Broadway Holiday Lodges Limited | Hospitality | 2020 |
| Brooker Wormald Ltd | Real estate | 2018 |
| Brooks Project Services Ltd | Professional & scientific | 2008 |
| Brtsh Mustard Limited | Wholesale & retail | 2022 |
| Bucket Farm Ltd | Agriculture & fishing | 2025 |
| Buddies Liquids Ltd | Wholesale & retail | 2019 |
| Build by Design Limited | Construction | 2012 |
| Buildrandom Limited | Construction | 1990 |
| Bundalloch Ltd | Hospitality | 2022 |
| Burgess (Consultancy) Limited | Education | 2011 |
| Business & Property Finance Solutions Limited | Financial services | 2008 |
| Business Class Financials Limited | Financial services | 2019 |
| Busy Enterprises Ltd | Real estate | 2023 |
| Butterfly Motive Ltd | Other services | 2024 |
| C D Equipment Engineering Limited | Manufacturing | 2003 |
| C E Solutions Limited | Construction | 2005 |
| C M Services (Worcester) Ltd | Construction | 2022 |
| C Morris Developments Limited | Construction | 2013 |
| C.B.Photography Limited | Professional & scientific | 2025 |
| Cafe Espresso @ JHB Limited | Hospitality | 2009 |