| Bauer Assets Limited | Financial services | 2025 |
| Baylen Delano Palmtop Ltd | Wholesale & retail | 2025 |
| Bayston Properties Limited | Construction | 1986 |
| BBH (Legal Services) Limited | Professional & scientific | 2000 |
| BBM Building & Brickwork (NW) Ltd | Construction | 2023 |
| BDH Solicitors Limited | Professional & scientific | 2016 |
| BE Well Community Learning CIC | Education | 2020 |
| BE Well Learning Ltd | Education | 2018 |
| Beachbreeze Limited | Professional & scientific | 2001 |
| Beamzi Ltd | Hospitality | 2025 |
| Beaufort Air-Sea Equipment Limited | Professional & scientific | 1952 |
| Beauty & Nail (UK) Ltd | Other services | 2012 |
| Bebington Car Care Limited | Wholesale & retail | 2008 |
| Becketts Flooring Limited | Construction | 2025 |
| Becki Keegan Coaching Ltd | Arts & recreation | 2021 |
| Beckwith Lock & Safe Limited | Administrative & support | 2009 |
| Bedells Lane (Wilmslow) Management Company Limited | Households | 2003 |
| Beder Limited | Real estate | 2015 |
| Bee-Yond Clean Ltd | Administrative & support | 2025 |
| Beech Group Holdings Limited | Financial services | 2023 |
| Beech Waste Management Limited | Water & waste | 2025 |
| Beehive Babyland Limited | Wholesale & retail | 2002 |
| Beer Academic Consultancy Ltd | Education | 2020 |
| Beewirral CIC | Other services | 2013 |
| Behind Bars Calisthenics Academy C.I.C. | Health & social care | 2021 |
| Bell's Hair and Beauty Training Academy Ltd | Education | 2020 |
| Benchmark Laser Surveys Ltd | Professional & scientific | 2013 |
| Bennett Property and Consultancy Ltd | Real estate | 2025 |
| Bennett Williams Solicitors Limited | Professional & scientific | 2015 |
| Benza Autos Ltd | Wholesale & retail | 2011 |
| Besmart South West Limited | Health & social care | 2002 |
| Bespoke Wall Coverings Limited | Information & communication | 2025 |
| Best Food and Desserts in Town Ltd | Wholesale & retail | 2025 |
| Best Shawarma Ltd | Hospitality | 2023 |
| Best Start Tots Ltd | Education | 2023 |
| Beyond Balustrades Windows and Doors Ltd | Construction | 2025 |
| BHD Diligent Ltd | Health & social care | 2022 |
| Bidston Holdings Limited | Financial services | 2022 |
| Big Leap Investments Ltd | Wholesale & retail | 2020 |
| Big Splash Kurd Ltd | Administrative & support | 2017 |
| Big Tipi of Love Ltd | Hospitality | 2025 |
| Bigbada Productions Ltd | Information & communication | 2024 |
| Bimavic Limited | Hospitality | 2025 |
| Birkenhack Limited | Other services | 2025 |
| Birkenhead Bargains Limited | Wholesale & retail | 2025 |
| Birkenhead Building & Roofing Supplies Limited | Wholesale & retail | 1982 |
| Birkenhead Comets CIC | Arts & recreation | 2021 |
| Birkenhead Community Development Committee | Arts & recreation | 2011 |
| Birkenhead CP 1722 Limited | Hospitality | 2025 |
| Birkenhead Cycles Limited | Wholesale & retail | 2002 |
| Birkenhead Gymnastics Academy Community Interest Company | Arts & recreation | 2017 |
| Birkenhead MOT and Service Centre Ltd | Wholesale & retail | 2024 |
| Birkenhead Park Counselling Centre Ltd | Real estate | 2023 |
| Birkenhead Plumbing & Heating Limited | Professional & scientific | 2009 |
| Birkenhead Specsavers Limited | Wholesale & retail | 1992 |
| Birkenhead Squeaky Clean Car Wash Ltd | Administrative & support | 2026 |
| Birkenhead Timber Supplies Limited | Professional & scientific | 1992 |
| Birko Bricks Limited | Wholesale & retail | 2025 |
| Birko Grill Ltd | Hospitality | 2025 |
| Birko Ventures Limited | Hospitality | 2026 |
| Bitplates Limited | Professional & scientific | 2020 |
| Black Opal Software Limited | Professional & scientific | 2022 |
| Blackwood & Daughters Ltd | Hospitality | 2024 |
| Blend EST24 Ltd | Hospitality | 2024 |
| Blending and Bottling Solutions Limited | Manufacturing | 2014 |
| Blessed House Ltd | Hospitality | 2023 |
| Bloom Building & Maintenance Ltd | Construction | 2025 |
| Blow Motion Limited | Wholesale & retail | 2012 |
| Blue Arch Real Estate Ltd | Real estate | 2023 |
| Blue Corporate Advisory Services Limited | Professional & scientific | 2013 |
| Blue Corporate Properties Limited | Real estate | 2016 |
| Blue Funnel Line Limited | Professional & scientific | 1997 |
| Blue Teknologies Limited | Information & communication | 2022 |
| Bluebell Corbridge Limited | Hospitality | 2020 |
| Bluehouse Lettings Ltd | Real estate | 2025 |
| Bluewatch (UK) Ltd | Administrative & support | 2013 |
| Blum Health Ltd | Information & communication | 2019 |
| Blum Technologies Group Ltd | Information & communication | 2019 |
| Blything Ltd | Administrative & support | 2014 |
| Bmph Services Limited | Construction | 2013 |
| BNJ Tyre Sales Limited | Administrative & support | 2003 |
| BNR Holdings Limited | Financial services | 2018 |
| BNR Hub CIC | Other services | 2024 |
| Boaro Holdings Ltd | Financial services | 2024 |
| Bobnamara Limited | Hospitality | 2019 |
| Body Tech Blackburn Ltd | Arts & recreation | 2024 |
| Body Tech Deeside Ltd | Arts & recreation | 2025 |
| Body Tech Ellesmere Port Ltd | Arts & recreation | 2023 |
| Body Tech Fitness 6 Ltd | Arts & recreation | 2025 |
| Body Tech Fitness Ltd | Arts & recreation | 2012 |
| Body Tech Wrex Limited | Arts & recreation | 2024 |
| Bold Street Inn Ltd | Real estate | 2025 |
| Bonds Painting Limited | Construction | 1940 |
| Bones the Label Limited | Wholesale & retail | 2023 |
| Bonza Damson Limited | Professional & scientific | 2003 |
| Born and Bred Coffee Shop Ltd | Hospitality | 2019 |
| Borough Road Discount Store Ltd | Wholesale & retail | 2017 |
| Borough Services- Plumbing, Heating, GAS & Renewables Ltd | Construction | 2012 |
| Botan's Barber Shop Ltd | Other services | 2023 |
| Boulton Property Group Ltd | Real estate | 2020 |