| Blushes Worcester Limited | Gloucester | 2020 |
| Blusheuk Limited | Corby | 2025 |
| Blushh. With Love Limited | Cefn Mawr | 2017 |
| Blushin Beauty Limited | Bridgend | 2025 |
| Blushing Beauty Ltd | Stockport | 2010 |
| Blushing Beauty Wolves Ltd | Wolverhampton | 2025 |
| Blushington Beauty Co Ltd | Bury St. Edmunds | 2018 |
| Blushington Limited | Poole | 2018 |
| Blushrooms Digital Ltd | Caterham | 2025 |
| Blushstudio Beauty Ltd | Birmingham | 2025 |
| Blushyou Ltd | London | 2022 |
| Bluster Group Ltd | London | 2024 |
| Bluster Limited | London | 2013 |
| Bluston Nominees Limited | London | 2026 |
| Blutri Ltd | Telford | 2019 |
| Blutty Haircuts Ltd | London | 2025 |
| Bluvea Ltd | London | 2023 |
| Bluverge Ltd | Birmingham | 2025 |
| Bluxe Yeadon Limited | Leeds | 2026 |
| BLW Central Office UK Limited | London | 2014 |
| BLW Poundbury Ltd | Dorchester | 2026 |
| BLW UK Zone 2 Limited | London | 2015 |
| Blwa Limited | London | 1922 |
| Blwhair Ltd | Walsall | 2025 |
| Blxbeauty Ltd | London | 2026 |
| Blyburgate Barbers Ltd | Norwich | 2024 |
| Blyde's Playbarn Limited | Snodland | 2015 |
| Blync Ltd | Cardiff | 2020 |
| Blynk Lash & Brow Bar Ltd | United Kingdom | 2014 |
| Blyss Hair and Beauty Limited | London | 2012 |
| Blyth & Sons Limited | Norwich | 1963 |
| Blyth (NE) Barbers Ltd | Blyth | 2025 |
| Blyth Estates Holdings Limited | Salford | 2022 |
| Blyth Family Funerals Ltd | Blyth | 2022 |
| Blyth Hall Management Services Limited | Atherstone | 2024 |
| Blyth MAN Shed C.I.C. | Blyth | 2019 |
| Blyth Nails Ltd | Blyth | 2022 |
| Blyth&Co Ltd | Attleborough | 2025 |
| Blythe Financial Limited | East Sheen | 1999 |
| Blythe Meadow Management Company Limited | Ormskirk | 2012 |
| Blyths Inspection Ltd | Grimsby | 2025 |
| Blythswood Capital Limited | London | 2013 |
| Blythswood Grove Limited | Glasgow | 2024 |
| Blyton Shooting Ground Ltd | Gainsbourough | 2023 |
| BLZ London Ltd | London | 2020 |
| BLÉ Studios Ltd | Airdrie | 2025 |
| BM (Tring) Limited | Tring | 2017 |
| BM Acoustic Installations Limited | Maesteg | 2018 |
| BM Barber Shop Ltd | Birmingham | 2023 |
| BM Business Consulting Limited | Lincoln | 2020 |
| BM Care Limited | Harrow | 2003 |
| BM Care Warwick Limited | Harrow, | 2013 |
| BM Clinic(London) Limited | London | 2023 |
| BM Connect Limited | London | 2016 |
| BM Corporation Ltd | Cardiff | 2025 |
| BM Injury and Sports Massage Ltd | Burscough | 2022 |
| BM International Limited | Nottingham | 2023 |
| BM Live Trading Co Ltd | Beverley | 2017 |
| BM Nail Supply Ltd | Ruislip, | 2025 |
| BM Nitro Limited | Worsley | 2014 |
| BM Nominees Limited | London | 2024 |
| BM Paws Limited | Driffield | 2018 |
| BM Payments Services Limited | Southampton | 2013 |
| BM Permanent Beauty Limited | Stafford | 2016 |
| BM Property Office Ltd | London | 2020 |
| BM Refinishing Ltd | Mansfield | 2019 |
| BM Savings Advice Scotland Ltd | Glasgow | 2018 |
| BM Siady Limited | Carshalton | 2017 |
| BM Skin Enhancement Ltd | London | 2023 |
| BM Sound and Entertainment Ltd | Ware | 2019 |
| BM Tourism & Event Limited | South Croydon | 2015 |
| BM Trust Ltd | London | 2018 |
| Bm&W Services Ltd | Wellingborough | 2020 |
| Bm's Trading Floor Ltd | Hamilton | 2023 |
| BM88 Limited | Harrow | 2014 |
| BM96 Services Limited | Watford | 2026 |
| Bmac (Holdings) Limited | Southampton | 2008 |
| Bmao Ltd | London | 2025 |
| Bmax Limited | Westerham | 2010 |
| BMB Arts Limited | Helensburgh | 2022 |
| BMB K9 Solutions Ltd | Shipston-On-Stour | 2023 |
| Bmbh-Uk Limited | London | 2021 |
| BMC Birmingham Marketing Company Ltd | Derby | 2025 |
| BMC Car Care Services Ltd | Reading | 2019 |
| BMC Cultural Exchange Limited | Newcastle Upon Tyne | 2015 |
| BMC Designworks Ltd | Tonbridge | 2023 |
| BMC International Limited | Leeds | 2017 |
| BMC Mini Club Limited | Brierley Hill | 2026 |
| BMC Sport Limited | Ampthill | 2025 |
| BMC Therapies Ltd. | Hadlow | 2016 |
| Bmcd Ltd | Middlesbrough | 2017 |
| Bmct Services Limited | Pershore | 1996 |
| BMD by Sharon Ltd | Bury St. Edmunds | 2017 |
| BMD Crushing Ltd | Leicester | 2025 |
| BMD Property Ltd | Edinburgh | 2020 |
| Bmddcs Ltd | Stirling | 2023 |
| BME & SK Hydraulics Limited | Aberdeen | 2019 |
| BME Network Community Interest Company | Middlesbrough | 2008 |
| BME Salon Limited | Bristol | 2018 |
| BME Wellness Ltd | Basildon | 2021 |