| Beecham Builders Limited | Construction | 2017 |
| Bella BOO Limited | Education | 2017 |
| Belmar Electrical Services Limited | Construction | 2009 |
| BEN Pitts Limited | Arts & recreation | 2007 |
| Benmore House Residents Association Limited | Households | 1997 |
| Bennetts Hill Ltd | Professional & scientific | 2021 |
| Berach Tech Limited | Information & communication | 2024 |
| Bertazzoni UK Care & Service Limited | Wholesale & retail | 2025 |
| Bertazzoni UK Limited | Wholesale & retail | 2017 |
| Bertazzoni UK Service Limited | Wholesale & retail | 2025 |
| Bespoke Rides Ltd | Transport & logistics | 2024 |
| Bexley Court RTM Company Limited | Real estate | 2008 |
| BFM Property Limited | Real estate | 2021 |
| BHP Services Ltd | Manufacturing | 2018 |
| Bidston Lighthouse C.I.C. | Arts & recreation | 2015 |
| Bidston Observatory Artistic Research Centre | Professional & scientific | 2019 |
| Bidston Property Investment Company Limited | Real estate | 1963 |
| Big Hills Big Solutions Ltd | Professional & scientific | 2015 |
| Birkenhead Lawn Tennis Club Limited | Arts & recreation | 1925 |
| Birkenhead Monumental Limited | Manufacturing | 1999 |
| Birkenhead Swan Court Estate Management Company Limited | Households | 1972 |
| BJA Pubs Ltd | Hospitality | 2025 |
| Bjng Limited | Wholesale & retail | 2023 |
| BL Rock Ferry Ltd | Hospitality | 2018 |
| Blackwatch Facilities Limited | Construction | 2024 |
| Bleau Glass Ltd | Construction | 2022 |
| Blockforge Capital Ltd | Financial services | 2026 |
| Blue Bridge Wealth Structuring Limited | Financial services | 2014 |
| Blue Frog Consultants Limited | Manufacturing | 2022 |
| Blue Hart Investments Ltd | Construction | 2025 |
| Blue Metal Shipping Ltd | Transport & logistics | 2018 |
| Bluemetal Group Ltd | Transport & logistics | 2018 |
| Bluscape Limited | Real estate | 2018 |
| BNP Properties NW Ltd | Real estate | 2023 |
| Body Rooms Limited | Other services | 2025 |
| BPD Property Developers Ltd | Real estate | 2024 |
| BPD Property Solutions Ltd | Construction | 2026 |
| BPM Services Limited | Real estate | 1996 |
| BPS Courier Services Ltd | Transport & logistics | 2025 |
| Bradburn & Co Accountants Ltd | Professional & scientific | 2012 |
| BRC Consultants Ltd | Administrative & support | 2015 |
| BRC Management Services Ltd | Professional & scientific | 2022 |
| Bree Electrical Ltd | Construction | 2025 |
| Breezedown Limited | Real estate | 1986 |
| Brezaux Limited | Arts & recreation | 2022 |
| Brides by Tina Louise Ltd | Wholesale & retail | 2013 |
| British Blue Tours Ltd | Transport & logistics | 2025 |
| Brookswater Feed Ltd | Wholesale & retail | 2026 |
| Brooktherm UK Limited | Manufacturing | 2026 |
| Brookway Cars Ltd | Wholesale & retail | 2008 |
| Brunchies Wirral Limited | Hospitality | 2023 |
| Brush and Bottle Ltd | Arts & recreation | 2024 |
| BSL (Systems) Ltd | Construction | 2006 |
| Budworth CIO Ltd | Health & social care | 2025 |
| Budworth Wellness Ltd | Other services | 2026 |
| Burfordian Bulldogs Ltd | Wholesale & retail | 2018 |
| Burnstein Limited | Manufacturing | 2011 |
| C & E Bistro Ltd | Hospitality | 2019 |
| C&B Property Development Wirral Ltd | Real estate | 2024 |
| Cakes by the Lakes Wirral Ltd | Hospitality | 2025 |
| Calany Limited | Real estate | 2025 |
| Cambrian Holdings Limited | Construction | 2015 |
| Cambrian Housing Services (Wirral) Limited | Health & social care | 2013 |
| Cambrian Supported Living Limited | Health & social care | 2004 |
| Car Transporter Solution Ltd | Transport & logistics | 2019 |
| Cardiac Consultation Limited | Health & social care | 2014 |
| Care Launderettes Limited | Real estate | 1964 |
| Carew Associates Limited | Information & communication | 2003 |
| Casa MIA Prenton Ltd | Hospitality | 2023 |
| Catherine M Daley Ltd | Professional & scientific | 2020 |
| CB Motion and Design Limited | Arts & recreation | 2017 |
| Cbpn Limited | Wholesale & retail | 2022 |
| CC Utilities Ltd | Construction | 2020 |
| CDB Heating Ltd | Construction | 2023 |
| Century System Scaffolding Limited | Construction | 2013 |
| Ceres Court (Bidston) Management Co. Limited | Households | 1986 |
| Cforshaw Joinery Ltd | Construction | 2024 |
| Cfsports Limited | Wholesale & retail | 2025 |
| Charlestas Solutions Limited | Health & social care | 2025 |
| Chartbranch (Chapel EN LE Frith) Limited | Real estate | 2005 |
| Cheshire Lettings & Developments Ltd | Construction | 2023 |
| Chester Carpet Cleaning Limited | Administrative & support | 2017 |
| Chihuang Music School Limited | Wholesale & retail | 2018 |
| Chill Kings Ltd | Manufacturing | 2025 |
| Chiluck Logistics Ltd | Transport & logistics | 2026 |
| Christchurch Consulting Limited | Professional & scientific | 2010 |
| Christchurch Flat Management Ltd | Households | 2002 |
| Christchurch View Management Company Limited | Households | 1986 |
| Christhill GB Limited | Professional & scientific | 2016 |
| Christhill Property Limited | Real estate | 2017 |
| Churchmarketplace Ltd | Administrative & support | 2012 |
| Ciaks Ltd | Wholesale & retail | 2024 |
| Ciaks Property Limited | Real estate | 2024 |
| Cine Maddy Pictures UK Ltd | Information & communication | 2026 |
| Cinecam Studios Limited | Information & communication | 2025 |
| Cipt Ltd | Construction | 2025 |
| City Framers (Chester) Limited | Wholesale & retail | 2020 |
| Ckdn Nutrition Ltd | Extraterritorial | 2022 |
| Claire Summers Freelance Ltd | Administrative & support | 2021 |
| Clarke Retail Installations Ltd | Construction | 2025 |