| Bespoke Visual Solutions Ltd | Administrative & support | 2012 |
| Best Foot Forward Podiatry Ltd. | Health & social care | 2012 |
| Best Numb Ltd | Wholesale & retail | 2024 |
| Best STL Ltd | Hospitality | 2024 |
| Best Trim Ltd | Other services | 2025 |
| Bestsellers Limited | Wholesale & retail | 2004 |
| Beth Norris MRI Limited | Health & social care | 2019 |
| Bethuw Inns Ltd | Hospitality | 2020 |
| Betting GG Limited | Professional & scientific | 2022 |
| Beverly Jones Osteopaths Limited | Health & social care | 2002 |
| Beyond Books Tutoring Ltd | Education | 2023 |
| Bezier Consulting Limited | Information & communication | 2004 |
| Bgbuk Ltd. | Professional & scientific | 2012 |
| BGH Developments Ltd | Construction | 2026 |
| BGM Properties Ltd | Real estate | 2021 |
| Bi-G Accounting Bookkeeping & Consultancy Ltd | Information & communication | 2025 |
| Bibus Metals Ltd | Wholesale & retail | 2011 |
| Big 5 Protection Ltd | Administrative & support | 2019 |
| Big BEN Safety Products Ltd | Extraterritorial | 2015 |
| Big Cat Accounting Ltd | Professional & scientific | 2024 |
| Big Fish Landscapes Ltd | Administrative & support | 2009 |
| Big Helping Ltd | Professional & scientific | 2010 |
| Big KID Coffee Limited | Real estate | 2021 |
| Big Oak Enterprises Limited | Energy | 2012 |
| Biggs Builders Limited | Construction | 2009 |
| Biggs Electrical Ltd | Construction | 2023 |
| Bigski Ltd | Administrative & support | 2026 |
| Billy Russell Cleaning Limited | Administrative & support | 2019 |
| Bingley Road Management Company Limited | Households | 2024 |
| BIO Capchar Ltd | Extraterritorial | 2024 |
| BIO Loam Ltd | Extraterritorial | 2024 |
| Biomech Engineering Services Limited | Professional & scientific | 2018 |
| Biosphere Organics Limited | Agriculture & fishing | 2005 |
| BIR Services Hereford Limited | Construction | 2016 |
| Birch View Management Company Limited | Water & waste | 2008 |
| Birchwood Forestry Hereford Ltd | Agriculture & fishing | 2025 |
| Birley Services LLP | | 2021 |
| Bishops Meadows Community Sports Park CIC | Education | 2025 |
| BJ Electrics Ltd | Administrative & support | 2018 |
| BJB Contracted Ltd | Construction | 2025 |
| BJB Contractors Ltd | Construction | 2025 |
| BK Hereford Ltd | Hospitality | 2026 |
| Black Bear Accounting Ltd | Professional & scientific | 2025 |
| Black Label Creative Ltd | Administrative & support | 2014 |
| Black Moon Holdings Limited | Professional & scientific | 2022 |
| Black Mountain (International) Ltd | Real estate | 2012 |
| Black Mountain Agriculture Ltd | Wholesale & retail | 2025 |
| Black Mountain Asset Management Limited | Financial services | 2021 |
| Black Mountains Barns Ltd. | Real estate | 2008 |
| Black Mountains Botanicals Ltd | Hospitality | 2018 |
| Black Mountains Design Limited | Professional & scientific | 2007 |
| Black Mountains Roast Ltd | Manufacturing | 2021 |
| Black Tide Ltd | Information & communication | 2018 |
| Blackfoot Catering Ltd | Hospitality | 2025 |
| Blackhill Homes Limited | Construction | 2020 |
| Blackhill Shepherd Huts Limited | Hospitality | 2021 |
| Blacklight Associates Limited | Extraterritorial | 2019 |
| Blacklight Global Security Solutions Ltd | Administrative & support | 2022 |
| Blackmore Technical Ltd | Arts & recreation | 2025 |
| Blacktide Research Group Ltd | Professional & scientific | 2024 |
| Blacktrace Operations Ltd | Information & communication | 2025 |
| Blackwardine Boarding Kennels & Cattery Ltd | Other services | 2006 |
| Blackwardine Trading Limited | Agriculture & fishing | 2014 |
| Blackwell Lettings Ltd | Real estate | 2024 |
| Blackwheel Ltd | Information & communication | 2016 |
| Blaentreweren Farms Limited | Professional & scientific | 1991 |
| Blake Williams Developments Ltd | Hospitality | 2023 |
| Blanc TOO Limited | Extraterritorial | 1997 |
| Blanchfield Howell Property Solutions Ltd | Construction | 2024 |
| Blindcare | Health & social care | 1993 |
| BLM Trading Ltd | Wholesale & retail | 2009 |
| Blooming Temptations Limited | Wholesale & retail | 2014 |
| Blossom Coop Limited | Wholesale & retail | 2026 |
| Blossoming Psychology Ltd | Health & social care | 2025 |
| BLS Interiors Ltd | Construction | 2026 |
| Blue Line (Hereford) Limited | Transport & logistics | 1995 |
| Blue Planet Berry Company Limited | Wholesale & retail | 2018 |
| Blue Planet Food Company Limited | Wholesale & retail | 2018 |
| Blue Sky Hobbies Ltd | Wholesale & retail | 2022 |
| Bluebell Properties Limited | Households | 1988 |
| Blueprint Robotics UK Ltd | Professional & scientific | 2022 |
| BLUEPRINTVOL1 Ltd | Arts & recreation | 2023 |
| Bluestones Bailey Limited | Financial services | 2017 |
| BMP Limited | Professional & scientific | 2001 |
| Bobblestock Residents Company Limited | Households | 1973 |
| Bobbys Cleaning Services Ltd | Other services | 2024 |
| Bochica Triskele Limited | Administrative & support | 2018 |
| Bodawen Ltd | Hospitality | 2021 |
| Bodenham Grain Storage Limited | Agriculture & fishing | 1997 |
| Bodhicharya Publications CIC | Information & communication | 2015 |
| Body Language School of Dance CIC | Education | 2016 |
| Bodytech of Bangor Limited | Manufacturing | 2005 |
| Bogert.Co.Uk Limited | Professional & scientific | 2015 |
| Bohemian Heart Ltd | Hospitality | 2022 |
| Bohzaar Limited | Wholesale & retail | 1998 |
| Boilercare Plumbing and Heating Ltd | Construction | 2019 |
| Bolam and Birtwistle Ltd | Hospitality | 2022 |
| Boldwell Limited | Real estate | 2006 |
| Bolston Services Limited | Professional & scientific | 2021 |
| Bolts of Hereford Limited | Construction | 2000 |