| Bestone Broxburn Ltd | Wholesale & retail | 2023 |
| Bestone Lochend Ltd | Wholesale & retail | 2023 |
| Bestor Capital LP | | 2016 |
| Bestport Capital Founder Partner LP | | 2017 |
| Bestport Founder Partner LP | | 2006 |
| Bestsell Trade LP | | 2016 |
| Bestseller Profits Ltd | Professional & scientific | 2021 |
| Bestway Solutions LP | | 2016 |
| BET Boom LP | | 2015 |
| Beta Agro Industries Holdings LP | | 2018 |
| Beta Art Limited | Arts & recreation | 2025 |
| Beta Asset LP | | 2015 |
| Beta Capital LP | | 2001 |
| Beta Consulting LP | | 2014 |
| Beta Ease LP | | 2015 |
| Beta Growth Limited | Financial services | 2015 |
| Beta Impex LP | | 2016 |
| Beta Scottish Limited Partnership | | 2006 |
| Betaapps Ltd | Information & communication | 2023 |
| Betafin | | 2004 |
| Betamax Commercial Enterprise L.P. | | 2010 |
| Betawhite Management LP | | 2013 |
| Betbuy Group LP | | 2017 |
| Betdex Labs Ltd | Information & communication | 2021 |
| Beten Aroma LP | | 2016 |
| Bethania Ltd | Wholesale & retail | 2020 |
| Bethany Christian Trust | Other services | 2002 |
| Bethany Enterprises Limited | Wholesale & retail | 1993 |
| Bethany Watters Racing Ltd | Professional & scientific | 2026 |
| Bethstead Homes Ltd | Real estate | 2026 |
| Betlic LP | | 2014 |
| Betr Outsourcing Ltd | Administrative & support | 2024 |
| Bettani Mart Limited | Wholesale & retail | 2025 |
| Bettani Trading Limited | Wholesale & retail | 2025 |
| Better Associates L.P. | | 2009 |
| Better Global Solutions L.P. | | 2012 |
| Better Made Joinery Ltd | Construction | 2024 |
| Better Marketing L.P. | | 2011 |
| Better Nutritional Science Ltd | Manufacturing | 2016 |
| Better Promotions L.P. | | 2015 |
| Better Services L.P. | | 2011 |
| Better Surgery Ltd | Education | 2025 |
| Betterco Ltd | Wholesale & retail | 2021 |
| Betterpaws Ltd | Wholesale & retail | 2024 |
| Bettina Ostermann LP | | 2019 |
| Betty & George Ltd | Hospitality | 2021 |
| Betty Cleaning Ltd | Administrative & support | 2025 |
| Between the Walls Ltd | Other services | 2021 |
| Beulah Group Limited | Financial services | 2015 |
| Beulah Lets Ltd | Hospitality | 2024 |
| BEV FP SGP Limited | Financial services | 2014 |
| BEV SFP II LP | | 2014 |
| BEV SFP III LP | | 2016 |
| BEV SFP LP | | 2014 |
| Beveridge Philp & Ross Limited | Professional & scientific | 2021 |
| Beverly GP Limited | Professional & scientific | 2022 |
| Bevgen Limited | Manufacturing | 2025 |
| Bevi I LP | | 2013 |
| Bevi II LP | | 2013 |
| Bevi III LP | | 2013 |
| Bevis Lift Services Limited | Manufacturing | 2012 |
| Bevvy Limited | Information & communication | 2021 |
| Bewitched Pages Ltd. | Wholesale & retail | 2025 |
| Bexing LP | | 2015 |
| Bexley Alliance LP | | 2017 |
| Bexlite Ventures LP | | 2014 |
| Beyond Blue Investment Limited | Financial services | 2020 |
| Beyond Blue Limited | Information & communication | 2019 |
| Beyond Bookkeeping Accountants Ltd | Administrative & support | 2021 |
| Beyond Edinburgh Limited | Hospitality | 2023 |
| Beyond Energy Limited | Professional & scientific | 2010 |
| Beyond Exploration Ltd | Information & communication | 2016 |
| Beyond Favour LP | | 2016 |
| Beyond Green Advisors Ltd | Professional & scientific | 2007 |
| Beyond Horizons Explorers Ltd | Education | 2026 |
| Beyond Investments LP | | 2015 |
| Beyond Quantum Ltd | Professional & scientific | 2023 |
| Beyond Technique Ltd. | Arts & recreation | 2006 |
| Beyond the Level Limited | Construction | 2023 |
| Beyond the Norm Limited | Wholesale & retail | 2025 |
| Beyond the Numbers Limited | Professional & scientific | 2010 |
| Beyond Utility Ltd | Manufacturing | 2022 |
| Beyondthepossible Ltd | Professional & scientific | 2023 |
| Beyongolia Productions Ltd | Information & communication | 2019 |
| BF Food Hygiene & Safety Ltd | Other services | 2025 |
| BF Global Food LP | | 2014 |
| BFC Trade LP | | 2015 |
| BFL Freight Ltd | Transport & logistics | 2021 |
| Bfmrps Limited | Health & social care | 2021 |
| BFO & Company Limited | Professional & scientific | 2014 |
| BFP Investment Management Ltd | Extraterritorial | 2011 |
| BFS Imidazoline 1 LLP | | 2016 |
| BFV Trading LP | | 2014 |
| BG II SFP LP | | 2021 |
| BG Masonry Limited | Construction | 2019 |
| BG Pension Funding Scottish Limited Partnership | | 2013 |
| BG Prompting Limited | Information & communication | 2025 |
| BG Saturday School ABV Ltd | Education | 2024 |
| BG Taxis Ltd. | Extraterritorial | 2005 |
| Bg-Base (UK) Ltd. | Information & communication | 2001 |