| Bestko Ltd | Administrative & support | 2017 |
| Bestmark Logistics Ltd | Transport & logistics | 2022 |
| Bestmark Outlet Ltd | Wholesale & retail | 2025 |
| Beston Brothers Ltd | Real estate | 2025 |
| Bestonic Services Limited | Information & communication | 2025 |
| Bestplate Limited | Wholesale & retail | 1967 |
| Bestsel Limited | Wholesale & retail | 2014 |
| Bestson Ltd | Real estate | 2014 |
| Bestway 2 Shop Ltd | Wholesale & retail | 2021 |
| Bestway Accommodation Limited | Real estate | 2023 |
| Bestway Building Services Limited | Construction | 2023 |
| Bestway Cleaning Services Ltd | Administrative & support | 2025 |
| Bestway Housing Limited | Real estate | 2022 |
| Beta Bodz Gym Ltd | Arts & recreation | 2013 |
| Beta Management Services Ltd | Administrative & support | 2018 |
| Betechwise Ltd | Information & communication | 2024 |
| Betfair Group Limited | Information & communication | 2008 |
| Betfair Limited | Arts & recreation | 2004 |
| Beth Macaulay Couture Ltd | Manufacturing | 2025 |
| Bethany Guild Limited | Extraterritorial | 1974 |
| Betharles Ltd | Wholesale & retail | 2026 |
| Bethel Aviation Services Ltd | Manufacturing | 2022 |
| Bethel Health and Healing Network | Health & social care | 2006 |
| Bethel Innovations Ltd | Administrative & support | 2019 |
| Bethel Integrated Services Ltd | Health & social care | 2023 |
| Bethel International Bible Church | Other services | 2016 |
| Bethelec Services Ltd | Construction | 2016 |
| Bethelware Ltd | Information & communication | 2026 |
| Betinah Ltd | Public administration | 2020 |
| Beto Superstore Limited | Wholesale & retail | 2026 |
| Betor Limited | Wholesale & retail | 2021 |
| Betr Commercial Investments Limited | Real estate | 2026 |
| Betr Estates Limited | Real estate | 2026 |
| Bettafreight Ltd | Transport & logistics | 2025 |
| Bettafreight Services Limited | Transport & logistics | 1995 |
| Bettamix Limited | Extraterritorial | 1969 |
| Better & Better Residential Limited | Other services | 2004 |
| Better As.One Limited | Health & social care | 2013 |
| Better Bridge Consulting Ltd | Professional & scientific | 2025 |
| Better Business Performance Limited | Professional & scientific | 2016 |
| Better Call Paul Limited | Manufacturing | 2016 |
| Better Call Physio Ltd | Health & social care | 2025 |
| Better Care Global Ltd | Health & social care | 2024 |
| Better Days Barbers Salon Ltd | Other services | 2023 |
| Better Days BDF SE Ltd | Wholesale & retail | 2025 |
| Better Days Care and Support Limited | Health & social care | 2018 |
| Better Future Group Ltd | Information & communication | 2018 |
| Better Future Investments Ltd | Information & communication | 2017 |
| Better Future Properties Ltd | Real estate | 2017 |
| Better Habitat Ltd. | Hospitality | 2024 |
| Better Health Group Limited | Financial services | 2016 |
| Better Homes (Midlands) Limited | Construction | 2024 |
| Better Language Courses Limited | Other services | 2013 |
| Better Life Recruitment Services Ltd | Administrative & support | 2022 |
| Better Living Support Limited | Hospitality | 2024 |
| Better People, Better Communities Ltd | Health & social care | 2018 |
| Better Sports Limited | Administrative & support | 2004 |
| Better Steps Support Ltd | Education | 2025 |
| Better Streets for Birmingham CIC | Other services | 2025 |
| Better Team Care Services Limited | Health & social care | 2023 |
| Better Team Ltd | Health & social care | 2020 |
| Better Work Wellbeing Ltd | Professional & scientific | 2025 |
| Better World Tech Ltd | Information & communication | 2026 |
| Betterbody Foods UK Ltd | Wholesale & retail | 2022 |
| Betterknights Housing Ltd | Hospitality | 2025 |
| Betterknights Ltd | Real estate | 2025 |
| Betterliving & Co.(U.K.) Ltd | Real estate | 2020 |
| BETTERYOUN:0W Ltd | Arts & recreation | 2026 |
| Bettr Ltd | Information & communication | 2024 |
| Betts & Betts Ltd | Professional & scientific | 2017 |
| Betts Fellows Ltd | Professional & scientific | 2020 |
| Betts Group Limited | Water & waste | 2019 |
| Betts Squared Limited | Professional & scientific | 2020 |
| Betture Corporation Limited | Wholesale & retail | 2021 |
| Betty Dream Limited | Hospitality | 2015 |
| Betty Hair and Beauty Haven Ltd | Other services | 2025 |
| Betty Kitchen UK Limited | Hospitality | 2024 |
| Betula Investments | Financial services | 2012 |
| Between Bubbles Ltd | Administrative & support | 2025 |
| Betyetu Group Limited | Financial services | 2017 |
| BEU Nails Ltd | Other services | 2023 |
| BEU Nails Shirley Ltd | Other services | 2025 |
| Beulah Recruitment Limited | Health & social care | 2024 |
| Beuro IP Limited | Professional & scientific | 2020 |
| BEV Care Health Limited | Public administration | 2025 |
| BEV Trading Limited | Professional & scientific | 2026 |
| Bevdeep Limited | Real estate | 2018 |
| Beverley Hall Court Management Company Limited | Real estate | 2023 |
| Beverley Holiday Park Limited | Hospitality | 2010 |
| Beverley Hotel Limited(The) | Hospitality | 1960 |
| Beverley Leisure Park Limited | Hospitality | 2021 |
| Beverly Energy Ltd | Energy | 2025 |
| Bevington Security Solutions Ltd | Administrative & support | 2021 |
| Bewater Gate Company Limited | Real estate | 2020 |
| Bewdley Facial Aesthetics Limited | Health & social care | 2017 |
| Bewdley Fish Bar Limited | Hospitality | 2017 |
| Bewdley Road Co Limited | Construction | 2014 |
| Bewick Court (Compton) Management Company Limited | Households | 2002 |
| Bewley's Cafes Limited | Hospitality | 1993 |
| Bewley's Oriental Cafes (Edinburgh) Limited | Hospitality | 1994 |