| Bazykhel Property Limited | Real estate | 2025 |
| BB BFD Ltd | Hospitality | 2025 |
| BB Holdings Group Ltd | Real estate | 2025 |
| BB Hospitality BFD Ltd | Hospitality | 2025 |
| BB School Limited | Real estate | 2019 |
| BBA Global Ltd | Hospitality | 2025 |
| BBD Digital Ltd | Information & communication | 2021 |
| Bbdw Investments Limited | Real estate | 2019 |
| BBO Logistics Limited | Transport & logistics | 2019 |
| BBQ Express (Girlington) Ltd | Hospitality | 2023 |
| BBQ Express (Toller Lane) Ltd | Hospitality | 2026 |
| BBW Taverns Limited | Hospitality | 2025 |
| BC Bantams Limited | Arts & recreation | 2011 |
| Bcba Limited | Real estate | 2011 |
| Bcgprojects Limited | Construction | 2015 |
| Bcjj Ltd | Manufacturing | 2014 |
| BCS Loans & Mortgages Limited | Financial services | 2006 |
| BCW Car Wash Ltd | Wholesale & retail | 2019 |
| BD Active CIC | Education | 2024 |
| BD Collective Ltd | Financial services | 2021 |
| BD Global Seller Ltd | Wholesale & retail | 2025 |
| BD Self Storage Ltd | Transport & logistics | 2023 |
| BD Shop Front Ltd | Manufacturing | 2024 |
| BD1 Properties Limited | Real estate | 2021 |
| BD4 Community Trust Limited | Health & social care | 2008 |
| BD4 Construction Limited | Construction | 2012 |
| BD4 Ltd | Professional & scientific | 2024 |
| BD5 Autos Ltd | Wholesale & retail | 2024 |
| BDB (SP) Holdings Limited | Financial services | 2020 |
| BDF1 UK Ltd | Wholesale & retail | 2026 |
| Bdfm Management Limited | Administrative & support | 2017 |
| Bdge Ltd | Wholesale & retail | 2025 |
| Bdhive Property Ltd | Real estate | 2025 |
| BDJ Builders Yorkshire Ltd | Construction | 2022 |
| BDM Self Storage Ltd | Administrative & support | 2006 |
| BDP Services Ltd | Construction | 2022 |
| BDS Doors Ltd | Manufacturing | 2020 |
| BE ALL Ears Ltd | Information & communication | 2017 |
| BE LUX Limited | Other services | 2014 |
| BE Social Intelligence Ltd | Professional & scientific | 2023 |
| BE Socially Savvy Limited | Other services | 2022 |
| BE Sure Accounting & Book Keeping Ltd | Professional & scientific | 2018 |
| Beacon College of Business and Technology Ltd | Education | 2026 |
| Beacon Healthcare Services Ltd | Health & social care | 2019 |
| Beacon Leisure Limited | Wholesale & retail | 2017 |
| Beaconhouse Care Limited | Health & social care | 2024 |
| Beaconhouse Group Limited | Real estate | 2024 |
| Beaconhouse Support Services Limited | Administrative & support | 2024 |
| Beaconrise Services Ltd | Administrative & support | 2025 |
| Beamsley House Management Company Limited | Households | 1991 |
| Bean 2 CUP Limited | Wholesale & retail | 2023 |
| Beanos Plumbing Limited | Construction | 2026 |
| Beap | Health & social care | 2002 |
| Bear Cricket Ltd | Manufacturing | 2017 |
| Bear Poor Records Limited | Information & communication | 2023 |
| Bearded Bakers BD3 Ltd | Wholesale & retail | 2026 |
| Bearded Bakerz Ltd | Hospitality | 2024 |
| Bearsted Motors Ltd | Wholesale & retail | 2017 |
| Beast Empire Ltd | Information & communication | 2025 |
| Beast Mode Autos Ltd | Wholesale & retail | 2024 |
| Beatz Burger Ltd | Hospitality | 2026 |
| Beau Amor Ltd | Wholesale & retail | 2020 |
| Beau Kitchens (Yorkshire) Ltd | Construction | 2022 |
| Beauden Novella Ltd | Hospitality | 2025 |
| Beaumont Cleaning Limited | Administrative & support | 2019 |
| Beaumont Management Services (UK) Ltd | Professional & scientific | 2008 |
| Beaumonts 4X4 Ltd | Wholesale & retail | 2015 |
| Beautifly UK Ltd | Other services | 2025 |
| Beautiful Rubbish Removals Ltd | Water & waste | 2025 |
| Beautiful Stitches Ltd | Wholesale & retail | 2023 |
| Beautify App Ltd | Information & communication | 2023 |
| Beauty by Carla Ltd | Other services | 2022 |
| Beauty by Leyla Ltd | Other services | 2026 |
| Beauty Cabin Nails Ltd | Other services | 2024 |
| Beauty Corner Bradford Ltd | Wholesale & retail | 2026 |
| Beauty Europe Limited | Wholesale & retail | 2019 |
| Beauty Exhibitions Limited | Administrative & support | 2019 |
| Beauty Globe Ltd | Wholesale & retail | 2020 |
| Beauty LAB Leeds Ltd | Health & social care | 2023 |
| Beauty Merchants Limited | Wholesale & retail | 2021 |
| Beauty Store Direct Limited | Wholesale & retail | 2017 |
| Beautybyhumna Ltd | Wholesale & retail | 2020 |
| Beautykingdom UK Ltd | Wholesale & retail | 2017 |
| Beautysoelle Ltd | Wholesale & retail | 2025 |
| Bebek Investments Limited | Hospitality | 2022 |
| Beckside 4X4 Centre Ltd | Wholesale & retail | 2004 |
| Beckstone Accountancy Limited | Professional & scientific | 2026 |
| Beckwith Design Associates Limited | Professional & scientific | 2003 |
| Beckwith Estates Limited | Construction | 2014 |
| Beckwith Properties Limited | Real estate | 2003 |
| BED Burst Ltd | Wholesale & retail | 2026 |
| Bedale Mobile Ltd | Wholesale & retail | 2025 |
| Bedazzled Collection Ltd | Wholesale & retail | 2016 |
| Beddingwares Ltd | Wholesale & retail | 2020 |
| Bedford Interiors (Halifax) Ltd | Wholesale & retail | 2021 |
| Bedford Street Storage Ltd | Real estate | 2026 |
| Bedtique Limited | Wholesale & retail | 2022 |
| BEE Auto Parts Ltd | Wholesale & retail | 2019 |
| BEE BEE Thai Therapy Limited | Other services | 2021 |
| BEE BEE Wellness Limited | Health & social care | 2025 |