| Boulton Rentals Ltd | Real estate | 2024 |
| Bow-Legged Beagle (Bromborough) Ltd | Hospitality | 2019 |
| Bowen Safety Ltd | Professional & scientific | 2023 |
| Box Step Fitness Ltd | Arts & recreation | 2021 |
| BPC (NW) Ltd | Manufacturing | 2025 |
| Brand Access Limited | Wholesale & retail | 2017 |
| BRAND9 Limited | Professional & scientific | 2017 |
| Brebertets Limited | Wholesale & retail | 2025 |
| Bredbury Catering Limited | Wholesale & retail | 2002 |
| Brennan Ayre O'Neill (Management) Ltd | Households | 2019 |
| Brennan Ayre O'Neill LLP | | 2012 |
| Bridge ST Holdings Limited | Hospitality | 2021 |
| Bridgecopse Limited | Real estate | 1997 |
| Brighter Birkenhead PCN Limited | Health & social care | 2022 |
| Brightray Ltd | Wholesale & retail | 2025 |
| Brightside Commercial Deep Cleaning Ltd | Other services | 2015 |
| Brikenhead Hand Car Wash 4 YOU Limited | Administrative & support | 2025 |
| Brilliant Festival Limited | Administrative & support | 2022 |
| Brimstage Roofing Limited | Construction | 2026 |
| Brit Digital Ltd | Professional & scientific | 2025 |
| British East India (Holdings) Limited | Extraterritorial | 2008 |
| Brook Lane (Wirral) Limited | Other services | 2019 |
| Brooktherm (Topco) Limited | Administrative & support | 2020 |
| Brookway Holdings Ltd | Construction | 2007 |
| Bryson Architecture Limited | Professional & scientific | 2011 |
| BSC Education Ltd | Education | 2020 |
| BSC Group Limited | Education | 2017 |
| BSC Pathways Ltd | Education | 2020 |
| BSC Professional Development Limited | Education | 2020 |
| BSC Worldwide Limited | Education | 2019 |
| BSC Young Learners Ltd. | Education | 2020 |
| BSI Services Ltd | Transport & logistics | 2016 |
| Bsrdd Ltd | Real estate | 2023 |
| Budget Lettings & Logistics Limited | Administrative & support | 2019 |
| Bullion Tech Ltd | Water & waste | 2014 |
| Bulut 1 Limited | Manufacturing | 2025 |
| Bunneesa Ltd | Wholesale & retail | 2025 |
| Buraq Dispatch Ltd | Transport & logistics | 2025 |
| Burkes Travels Limited | Transport & logistics | 2024 |
| Burro Development & Design Limited | Professional & scientific | 2022 |
| Bursuconstruct Ltd | Construction | 2026 |
| Burton Manor Gardens Management Company Limited | Households | 2020 |
| Busi and Stephenson Limited | Administrative & support | 1919 |
| Business Review Services Limited | Administrative & support | 2022 |
| Byrne Avenue Trust | Arts & recreation | 2015 |
| C & D Demolition Consultants Limited | Construction | 2017 |
| C & D Logistical Services Limited | Transport & logistics | 2018 |
| C & S Aluminium Windows Limited | Construction | 1981 |
| C & S Property Partners Ltd | Real estate | 2020 |
| C and S Forklift Truck Instructors Ltd | Administrative & support | 2009 |
| C Creations Coffee Co Ltd | Hospitality | 2026 |
| C Ebbrell Building Services Ltd | Construction | 2020 |
| C Meadows Welding & NDT Inspection Ltd | Professional & scientific | 2023 |
| C Roberts Orthopaedics Ltd | Health & social care | 2010 |
| C SAW Hair Ltd | Other services | 2026 |
| C Wiggins Holdings Ltd | Administrative & support | 2021 |
| C&B Scaffolding Ltd | Construction | 2025 |
| C&D Automotive Limited | Wholesale & retail | 2024 |
| C&S Property and Lettings Limited | Real estate | 2026 |
| C-Sure Limited | Manufacturing | 2020 |
| C.& S.Glaziers(North Wales)Limited | Construction | 1969 |
| C.D.S. Refrigeration Limited | Wholesale & retail | 2002 |
| C.E.H Solutions Limited | Professional & scientific | 2025 |
| C.O Plumbing Limited | Construction | 2023 |
| C.O.L Security Ltd | Administrative & support | 2016 |
| C.P. Development Limited | Construction | 1999 |
| C.P.B Building Services Limited | Construction | 2015 |
| Cacao Circle Limited | Manufacturing | 2022 |
| Cactus Worldwide Limited | Education | 1997 |
| CAD Engineers Limited | Professional & scientific | 2019 |
| Cadwmigei Investment Company | Financial services | 2022 |
| Cafe 41 Wirral Ltd | Hospitality | 2022 |
| Cafe Cross the Mersey Limited | Hospitality | 2014 |
| Caldaire Terminal Ltd | Transport & logistics | 1979 |
| Caldy Estates (Wirral) Limited | Real estate | 2023 |
| Callum Brands Limited | Wholesale & retail | 2022 |
| Cammell Laird Shiprepairers & Shipbuilders Limited | Manufacturing | 2001 |
| Camp New York Limited | Professional & scientific | 2022 |
| Campbell Gould Investments Limited | Professional & scientific | 1946 |
| Campervankitchens Ltd | Manufacturing | 2023 |
| Camphor Health Ltd | Real estate | 2025 |
| Campora Properties Limited | Real estate | 2024 |
| Canny Pubs Ltd | Hospitality | 2023 |
| Canolar Limited | Hospitality | 2024 |
| Capital Networks Ltd | Information & communication | 2005 |
| Capitol Garden Ltd | Hospitality | 2025 |
| Capnet Limited | Information & communication | 2022 |
| Captain Tonys Limited | Hospitality | 2024 |
| Capycapy Limited | Wholesale & retail | 2025 |
| Carechem International Limited | Manufacturing | 2008 |
| Carecomms Limited | Information & communication | 2019 |
| Carew Compliance Limited | Financial services | 2019 |
| Carmen Clothing Ltd | Wholesale & retail | 2020 |
| Carpenters (UK) LLP | | 2012 |
| Carpetworld Limited | Wholesale & retail | 2022 |
| Carroll & Stokes Limited | Health & social care | 2010 |
| Carsaig Lettings Ltd | Hospitality | 2022 |
| Casa DE NAS Ltd | Real estate | 2026 |
| Cassidy Plant Services (NW) Limited | Construction | 2010 |
| Castlewood Land & Development Limited | Other services | 2025 |