| Beautybrowlab Limited | Other services | 2021 |
| Beautybytemmyshay Ltd | Wholesale & retail | 2026 |
| Beautyroo Ltd | Other services | 2025 |
| Beautystone Co., Limited | Manufacturing | 2021 |
| Beautyu Ltd | Wholesale & retail | 2019 |
| Beauxnarrow Ltd | Wholesale & retail | 2017 |
| Beaver Software Ltd | Information & communication | 2025 |
| Beavers Lands Limited | Construction | 2011 |
| Bebe Amor Ltd | Wholesale & retail | 2025 |
| Bebe-Choco Ltd | Wholesale & retail | 2025 |
| Bebeadie Ltd | Wholesale & retail | 2025 |
| Bebesi Ugyvedi Iroda Ltd | Financial services | 2025 |
| Beboldtools Ltd | Wholesale & retail | 2024 |
| Bebuzee Limited | Information & communication | 2012 |
| BEC Logistics Limited | Administrative & support | 2019 |
| Beca Consultancy Ltd | Professional & scientific | 2020 |
| Beca Properties Limited | Real estate | 2014 |
| Becca Ltd | Professional & scientific | 2023 |
| Bechaouch Co. Ltd. | Arts & recreation | 2025 |
| Beckerly Holdings UK Limited | Other services | 2017 |
| Beckford & Birch Ltd | Real estate | 2023 |
| Beckmann Ventures Ltd | Real estate | 2026 |
| Beckton Parkside Residents Association (Freehold) Limited | Real estate | 1991 |
| Beckton Parkside Residents Association Limited | Real estate | 1982 |
| Beclickaware Ltd | Information & communication | 2017 |
| Becomeben Ltd | Wholesale & retail | 2024 |
| Bect Building Contractors Limited | Construction | 1983 |
| BED Universe Ltd | Wholesale & retail | 2023 |
| Bedale Driving School Ltd | Education | 2025 |
| Bedford Street Motors Limited | Wholesale & retail | 1998 |
| Bedigital Group Holdings Limited | Financial services | 2021 |
| Bedigitaluk Ltd | Information & communication | 2014 |
| Bedoin Limited | Other services | 2024 |
| Bedrock Dynamics Ltd | Information & communication | 2022 |
| Bedroom Athletics Limited | Wholesale & retail | 2008 |
| Bedwas Self Storage Limited | Other services | 2013 |
| Bedwyr Global Ltd | Wholesale & retail | 2025 |
| BEE @ Home Property Solutions Ltd | Households | 2019 |
| BEE Estates Cardiff Ltd | Real estate | 2022 |
| BEE Glamz Limited | Information & communication | 2020 |
| BEE Global Solutions Ltd | Hospitality | 2018 |
| BEE Group Cardiff Ltd | Manufacturing | 2020 |
| BEE Happy Limited | Agriculture & fishing | 2014 |
| BEE Homes Limited | Real estate | 2013 |
| BEE Inspired Coaching Limited | Health & social care | 2022 |
| BEE Nancrossa Limited | Energy | 2012 |
| BEE Solutions Ltd | Manufacturing | 2024 |
| BEE Wise Roofing Ltd | Construction | 2024 |
| Bee-Utiful Pooches Limited | Other services | 2023 |
| Beebits Limited | Professional & scientific | 2013 |
| Beech Properties (Cardiff) Limited | Hospitality | 1999 |
| Beechcross Civil Engineering Limited | Construction | 2012 |
| Beechley Superstore Ltd | Wholesale & retail | 2017 |
| Beechley Vapes Ltd | Wholesale & retail | 2020 |
| Beechwood Construction ( South West ) Limited | Construction | 2012 |
| Beechwood Court Limited | Education | 2003 |
| Beefish Limited | Wholesale & retail | 2025 |
| Beefy's Comedy Club Ltd | Arts & recreation | 2021 |
| Beehem Prime Media Ltd | Hospitality | 2025 |
| Beekeaper Ltd | Wholesale & retail | 2025 |
| Beeline Security Solutions Ltd | Administrative & support | 2025 |
| Beelivery Staff Ltd | Administrative & support | 2021 |
| Beelzebub Bars Limited | Hospitality | 2017 |
| Beena Paper Limited | Information & communication | 2021 |
| Beeniebuds&Co Limited | Wholesale & retail | 2011 |
| Beep Exevior Software Developers Ltd | Information & communication | 2021 |
| Beer & Burger O2 Arena Ltd | Hospitality | 2018 |
| Beer and Burger Walthamstow Ltd | Hospitality | 2019 |
| Beersaver (South Wales) Ltd | Administrative & support | 2025 |
| Beets and Roots Limited | Hospitality | 2017 |
| Beeworths Limited | Manufacturing | 2025 |
| Befit Nutrition Ltd | Wholesale & retail | 2017 |
| Befrin Ltd | Transport & logistics | 2025 |
| Begawans Veranda Limited | Information & communication | 2015 |
| Begelly Ltd | Professional & scientific | 2012 |
| Behavioral Finance Ltd | Professional & scientific | 2022 |
| Behepa PC | | 2018 |
| Behersy Limited | Wholesale & retail | 2025 |
| Behind Restaurantt Limited | Hospitality | 2024 |
| Behring Holdings Ltd | Financial services | 2019 |
| Beichuang Technology Limited | Wholesale & retail | 2021 |
| Beijing Keylaser Sci-Tech Co., Ltd. | Administrative & support | 2021 |
| Beijing Muhua E-Commerence Co., Ltd | Administrative & support | 2020 |
| Beili-Mawr Heat Ltd | Energy | 2012 |
| Beiling Developments Ltd | Construction | 2019 |
| BEK WA Goro Limited | Wholesale & retail | 2023 |
| Bekan Managed Services Ltd | Information & communication | 2019 |
| Bekircan Holdings Ltd | Real estate | 2025 |
| Bekite Limited | Wholesale & retail | 2024 |
| Belaire Capital PC | | 2014 |
| Belaz Ltd | Administrative & support | 2025 |
| Beleban Ltd | Wholesale & retail | 2021 |
| Belen Commerce Limited | Wholesale & retail | 2025 |
| Belerancia Jewellery Limited | Wholesale & retail | 2019 |
| Beleza London Limited | Wholesale & retail | 2022 |
| Belfay Ltd | Professional & scientific | 2022 |
| Belfort Leather Co Limited | Wholesale & retail | 2026 |
| Belgin Limited | Other services | 2010 |
| Belgium Ghent Crop Nutrition Limited | Wholesale & retail | 2023 |
| Belgium Luohilton International Co., Ltd | Mining & quarrying | 2026 |