| Beezer Apps Ltd | Professional & scientific | 2024 |
| Before OUR Diaspora Ltd | Information & communication | 2025 |
| Befoster Solutions LP | | 2015 |
| Befound Limited | Professional & scientific | 2013 |
| Befriending Networks Ltd | Health & social care | 1999 |
| Begio Property Limited | Real estate | 2025 |
| Begroni Investment SP | | 2003 |
| Behalt Goalkeeping Ltd | Wholesale & retail | 2011 |
| Behaviour 2 Business Ltd | Professional & scientific | 2022 |
| Behaviourai LAB Ltd | Information & communication | 2026 |
| Behavioural Finance Ltd | Information & communication | 2019 |
| Behaviourself Solutions Ltd | Administrative & support | 2024 |
| Beheardly Ltd | Professional & scientific | 2025 |
| Behind the Scenes VA Ltd | Professional & scientific | 2018 |
| Behind the Wall Holdings Limited | Financial services | 2026 |
| Behmm Limited | Other services | 2026 |
| Beholder Games Ltd | Wholesale & retail | 2026 |
| Beic Books Ltd | Information & communication | 2017 |
| Beif (UPP) L.P. | | 2011 |
| Beif Management II L.P. | | 2006 |
| Bein Inn Trading Limited | Real estate | 2023 |
| Being Wineful Limited | Professional & scientific | 2025 |
| Beinn Loch Ltd | Education | 2025 |
| Beinn NAN Oighrean Windfarm Ltd | Energy | 2025 |
| Beira Management LP | | 2013 |
| Beith Street Propco Limited | Construction | 2013 |
| Bekker Holdings LP | | 2016 |
| Bekkert Impex LP | | 2012 |
| Beknown Group Ltd | Transport & logistics | 2026 |
| Bekore LP | | 2026 |
| BEL International Group LP | | 2015 |
| BEL Nuovo Projects LP | | 2016 |
| BEL1 Holding Limited | Administrative & support | 2021 |
| BEL1 Limited | Administrative & support | 2018 |
| BEL3 Limited | Administrative & support | 2023 |
| Bela's Properties Ltd | Real estate | 2018 |
| Belair Holdings L.P. | | 2008 |
| Belair Investments LP | | 2013 |
| Belanger Business LP | | 2015 |
| Belaria Limited | Hospitality | 2025 |
| Belcom LP | | 2016 |
| Belcourt Global LP | | 2019 |
| Belesa Ltd | Wholesale & retail | 2021 |
| Belfast & Exeter LP | | 2013 |
| Belfast Bay LP | | 2016 |
| Belfast Dental Implant Clinic Ltd. | Health & social care | 2010 |
| Belfast SLP Limited Partnership | | 2007 |
| Belfast Style LP | | 2016 |
| Belford Consulting Limited | Administrative & support | 2024 |
| Belford Securities Limited | Real estate | 1954 |
| Belford Taxis Ltd. | Professional & scientific | 2005 |
| Belfort Impex LP | | 2012 |
| Belgian Fries 2 Limited | Hospitality | 2021 |
| Belgian Fries Limited | Hospitality | 2019 |
| Belgoscot Consultancy Services Ltd. | Financial services | 1999 |
| Belgrave Investment Consultants Limited | Professional & scientific | 2014 |
| Belgrave Medical Limited | Health & social care | 2019 |
| Belgravia Limited | Construction | 2007 |
| Belhaven Aeroservices Ltd. | Other services | 2010 |
| Belhaven Developments Ltd | Real estate | 2016 |
| Belherit SP | | 2003 |
| Belia Capital LP | | 2013 |
| Belief Business Ltd. | Other services | 2011 |
| Belimportservices LP | | 2015 |
| Belin LP | | 2013 |
| Beljulias Ltd | Information & communication | 2016 |
| Bell Bottom Eatery Limited | Hospitality | 2024 |
| Bell Cosmetic Repairs Ltd. | Other services | 2018 |
| Bell Data Labs Ltd | Information & communication | 2023 |
| Bell Geospace Limited | Administrative & support | 1998 |
| Bell Ingram Realisation Limited | Real estate | 1995 |
| Bell Investment Group Limited | Financial services | 2021 |
| Bell Management Services Limited | Administrative & support | 2017 |
| Bell Rock Indo-Scot Limited | Financial services | 2025 |
| Bell SLP | | 1997 |
| Bell Technical Support Ltd | Professional & scientific | 2016 |
| Bella Bistro Ltd | Hospitality | 2024 |
| Bella Ciao Ciao Limited | Financial services | 2022 |
| Bella Clean Limited | Administrative & support | 2010 |
| Bella Commerce L.P. | | 2015 |
| Bella Ristorazione Ltd | Hospitality | 2024 |
| Bella Vista (Monte Pego) Title Limited | Professional & scientific | 1996 |
| Bellada Consulting LP | | 2014 |
| Belladonna LP | | 2014 |
| Bellardi Inter LP | | 2015 |
| Bellaron 2 Limited | Real estate | 2018 |
| Bellatrix Trading LP | | 2018 |
| Belle AME Hair and Beauty Specialists Limited | Other services | 2020 |
| Belle Morph Ltd | Professional & scientific | 2024 |
| Belleformations Limited | Wholesale & retail | 2020 |
| Bellelamonde Studios Ltd | Administrative & support | 2018 |
| Bellerive Capital LP | | 2017 |
| Bellevue Chapel Evangelical Church | Other services | 2014 |
| Bellevue Dental Practice (Edinburgh) Ltd | Health & social care | 2010 |
| Bellevue IT Contracts Ltd | Information & communication | 2019 |
| Bellevue Optical Limited | Health & social care | 2024 |
| Bellezo.Com Ltd | Wholesale & retail | 2011 |
| Bellfield Brewery Limited | Manufacturing | 2014 |
| Bellgeo Enterprises Limited | Administrative & support | 2008 |
| Bellgrave Property Limited | Real estate | 2004 |