| BAV Tech Solutions Ltd | Information & communication | 2025 |
| BAX Properties & Investments Ltd | Real estate | 2025 |
| BAX Properties Management Limited | Real estate | 2011 |
| Baxter Joinery Limited | Construction | 2006 |
| Baxters Construction Ltd | Construction | 2021 |
| Baxtrom Consultancy Ltd | Professional & scientific | 2016 |
| Bayhill Management Limited | Real estate | 2003 |
| Bayir Logistics Ltd | Transport & logistics | 2024 |
| Bayliss Corporate Entertainment Ltd | Arts & recreation | 2013 |
| Bayside Vehicle Services Limited | Wholesale & retail | 2026 |
| Bayt El-Maarifa International Academy Ltd | Information & communication | 2023 |
| Bayt Laban Limited | Wholesale & retail | 2026 |
| Bazaar Retail Ltd | Wholesale & retail | 2025 |
| Bazal Builders Limited | Construction | 2020 |
| Bazal Traders Limited | Wholesale & retail | 2021 |
| BB Building Services (Manchester) Ltd | Construction | 2024 |
| BB Burger Ltd | Hospitality | 2024 |
| Bb&Mk Properties Ltd | Real estate | 2025 |
| BBA Beautifulblossomsaesthetics Ltd | Extraterritorial | 2024 |
| BBC Properties Ltd | Construction | 2025 |
| Bbdd Ltd | Other services | 2026 |
| BBF (Bolton) Limited | Manufacturing | 2002 |
| Bblo Ltd | Hospitality | 2025 |
| BBP 10 Ltd | Real estate | 2023 |
| Bbrt Group Ltd | Hospitality | 2021 |
| Bburger Ltd | Hospitality | 2025 |
| BBY London Limited | Hospitality | 2019 |
| BC Connect (UK) Limited | Real estate | 2023 |
| BC European Limited | Transport & logistics | 2022 |
| BC Powder Coating Limited | Manufacturing | 2021 |
| BC West Ltd | Real estate | 2021 |
| BCA Estates Limited | Real estate | 2021 |
| Bcaw Ltd | Information & communication | 2022 |
| BCB Houses Ltd | Real estate | 2020 |
| BCB Solutions Ltd | Professional & scientific | 2025 |
| BCH Property Development Ltd | Construction | 2020 |
| Bclc UK Ltd | Education | 2020 |
| BCM Accountants Ltd | Professional & scientific | 2019 |
| Bcoffshore Ltd | Administrative & support | 2023 |
| Bcpm Consultancy Ltd | Administrative & support | 2025 |
| BD Administrations Ltd | Administrative & support | 2023 |
| BD Elite Ltd | Financial services | 2011 |
| BDC Cctv Security Alarms Ltd | Administrative & support | 2026 |
| BDC Events Limited | Arts & recreation | 2008 |
| Bdolled Hair & Beauty Academy Ltd | Other services | 2019 |
| Bdyam Medical Services Ltd | Health & social care | 2025 |
| BE Bakery Ltd | Manufacturing | 2021 |
| BE Brilliant Consultancy Limited | Professional & scientific | 2017 |
| BE Electrical Ltd | Construction | 2019 |
| BE More Nutrition Ltd | Health & social care | 2025 |
| BE My Enterprise Limited | Other services | 2025 |
| BE Strong Project Ltd | Health & social care | 2011 |
| BE the Change Youth Project CIC | Education | 2020 |
| BE Tropical Cafe Together C.I.C. | Education | 2022 |
| BE YOU Lifestyle Limited | Wholesale & retail | 2016 |
| Beach Butterflies Ltd | Administrative & support | 2021 |
| Beach Shop Limited | Wholesale & retail | 2016 |
| Beach Towel Clips Ltd | Wholesale & retail | 2023 |
| Beacon Pathway Care Limited | Health & social care | 2026 |
| BEACON24 Logistics Ltd | Health & social care | 2019 |
| Beaconsfield Ventures Limited | Information & communication | 2026 |
| Beaconsure Ltd | Financial services | 2024 |
| Bealaw (MAN) LLP | | 2008 |
| Beam Property Limited | Real estate | 2019 |
| Beanz Coffee Company Ltd | Hospitality | 2021 |
| Bear Broadband Limited | Information & communication | 2026 |
| Bear Clothing Ltd | Wholesale & retail | 2022 |
| Bear Essentials Clothing Ltd | Wholesale & retail | 2015 |
| Bear Plant Hire Limited | Administrative & support | 2014 |
| Bear Plant Services Limited | Manufacturing | 2018 |
| Bear Town Estates Limited | Real estate | 2022 |
| Bear&Flop Ltd | Wholesale & retail | 2023 |
| Bearings Skatepark Community Interest Company | Arts & recreation | 2026 |
| Bearly Limited | Information & communication | 2022 |
| Beatrice Care Limited | Health & social care | 2022 |
| Beatus Project and Healthcare Ltd | Wholesale & retail | 2025 |
| Beatwolf Ltd | Arts & recreation | 2023 |
| Beaumont Homes NW Limited | Construction | 2018 |
| Beaumont Tax Consultants Ltd | Professional & scientific | 2025 |
| Beauregard Properties Limited | Hospitality | 2021 |
| Beautan Limited | Other services | 2005 |
| Beautech Services Limited | Professional & scientific | 2005 |
| Beauthetics Limited | Other services | 2018 |
| Beautific Ltd | Wholesale & retail | 2002 |
| Beautiful by Ella Ltd | Other services | 2024 |
| Beautiful Mountain Group Limited | Households | 2024 |
| Beautique Salon Bolton Limited | Extraterritorial | 2020 |
| Beautiques Skin Ltd | Other services | 2024 |
| Beauty Blush Limited | Wholesale & retail | 2023 |
| Beauty by Michaela Ltd | Other services | 2024 |
| Beauty by Zahra Ltd | Other services | 2025 |
| Beauty Elixir Ltd | Wholesale & retail | 2024 |
| Beauty Heist Ltd | Wholesale & retail | 2021 |
| Beauty Hub Online Ltd | Wholesale & retail | 2026 |
| Beauty Salon (Group) Ltd | Other services | 2022 |
| Beauty School Manchester Ltd | Education | 2022 |
| Beauty Xtra Limited | Other services | 2025 |
| Beautyful Salon Ltd | Other services | 2018 |
| Beaver Countrywear Limited | Manufacturing | 2005 |
| BEB Construction Ltd | Construction | 2024 |