| Beech Farm Property Limited | Real estate | 2015 |
| Beech Park Management Limited | Households | 1989 |
| Beech Web Services Limited | Information & communication | 2021 |
| Beechwood and Leawood Residents Association Ltd | Households | 2011 |
| Behan Performance Engineering Ltd | Manufacturing | 2019 |
| Bella Boutique Cheshire Ltd | Wholesale & retail | 2018 |
| Bellflower Construction Limited | Wholesale & retail | 2004 |
| Bellflower Country Properties Limited | Professional & scientific | 2002 |
| Bellingham Alexander Limited | Information & communication | 2000 |
| Bellota Oak Frames Limited | Construction | 2023 |
| Belmont View Residents Management Company Limited | Households | 2003 |
| Belscar Limited | Information & communication | 2024 |
| Benjamin Vickers Planning Limited | Professional & scientific | 2022 |
| Bennett Brooks & Co Limited | Professional & scientific | 1991 |
| Bennett Brooks (Leek) Limited | Professional & scientific | 2019 |
| Bennett Brooks Group Limited | Administrative & support | 2000 |
| Bennett Brooks IT Ltd | Information & communication | 2009 |
| Bennett Homecare Limited | Health & social care | 2020 |
| Bentley HR Ltd | Professional & scientific | 2013 |
| Bergamo Renewables Limited | Administrative & support | 2024 |
| Bermar Group Limited | Real estate | 2023 |
| Berrisford Advisory Limited | Professional & scientific | 2020 |
| Berwyn Property Services Limited | Real estate | 2022 |
| Bespoke Auto Developments LLP | | 2007 |
| Bespoke Fireplaces of Cheshire Ltd | Construction | 2025 |
| Bespoke Flooring Cheshire 2024 Ltd | Wholesale & retail | 2024 |
| Bespoke Flooring Cheshire Ltd | Wholesale & retail | 2020 |
| Bespoke Groundwork & Landscapes Limited | Administrative & support | 2021 |
| Bespoke Kitchens of Cheshire Ltd | Professional & scientific | 2025 |
| Bespoke Telemarketing Limited | Professional & scientific | 2016 |
| Bespoke Wedding Studios Ltd | Professional & scientific | 2025 |
| Best Msks Ltd | Health & social care | 2014 |
| Bethbell Northwich Ltd | Households | 2019 |
| Beyond BEA Ltd | Wholesale & retail | 2023 |
| Beyondcandlesuk Ltd | Administrative & support | 2020 |
| Beyza NUR Ltd | Wholesale & retail | 2023 |
| Bgiles Limited | Construction | 2025 |
| BHD Transport Ltd | Transport & logistics | 2025 |
| Bicar Wash Limited | Wholesale & retail | 2016 |
| Bickerton Bees Ltd | Professional & scientific | 2009 |
| Big L Autos Ltd | Wholesale & retail | 2021 |
| Big Massive Ideas Ltd | Professional & scientific | 2022 |
| Big Q Limited | Extraterritorial | 2001 |
| Bikspoke Ltd | Administrative & support | 2014 |
| Bill Pope(Motors)Limited | Real estate | 1953 |
| Billder QA Ltd | Construction | 2026 |
| Billy Fury (Ronald Wycherley/Wilbur Wilberforce) Limited | Information & communication | 2000 |
| BIOMAKERS3D Ltd | Professional & scientific | 2020 |
| Birchwood Catering Limited | Hospitality | 2015 |
| Bird Power Services Limited | Construction | 2017 |
| Birksteinotler Ltd | Manufacturing | 2022 |
| Birtles Solutions Ltd | Manufacturing | 2023 |
| Birtwisle Butchers Limited | Wholesale & retail | 2010 |
| Bison Creek Ltd | Wholesale & retail | 2013 |
| BJ Roofing and Cladding Limited | Construction | 2018 |
| BJH Developments Ltd | Construction | 2026 |
| BJM Door Solutions Ltd | Professional & scientific | 2024 |
| BJW Property (Cheshire) Ltd | Real estate | 2024 |
| BKM Care Services Ltd | Health & social care | 2023 |
| Black Rook Consultancy Limited | Professional & scientific | 2022 |
| Black Seal Limited | Information & communication | 2006 |
| Blackmore Mobility and Seating Solutions Limited | Wholesale & retail | 2019 |
| Blades Mowers Limited | Manufacturing | 2023 |
| Blakemere Craft Centre Limited | Arts & recreation | 1999 |
| Blakemere Events Limited | Arts & recreation | 2017 |
| Blasterco Ltd | Administrative & support | 2018 |
| Blend Skin & Beauty Clinic Ltd | Health & social care | 2020 |
| Blend Skin Clinic Ltd | Health & social care | 2020 |
| Blessed Joy Ltd | Real estate | 2023 |
| Blink Integrations Limited | Information & communication | 2026 |
| Blink Taxis Ltd | Transport & logistics | 2025 |
| BLOC71 Limited | Wholesale & retail | 2020 |
| Block 4 Ltd | Information & communication | 2018 |
| Blue Bridge IT Services Ltd | Information & communication | 2011 |
| Blue Cloud Construction & Renovation (North) Limited | Construction | 2016 |
| Blue Duck Engineering Ltd | Information & communication | 2015 |
| Blue Green Styling Ltd | Professional & scientific | 2019 |
| Blue Group Consulting Limited | Professional & scientific | 2015 |
| Blue Haven Lodge Limited | Hospitality | 2025 |
| Blue Independent Social Work Limited | Health & social care | 2016 |
| Blue Machinery (Central) Limited | Wholesale & retail | 1992 |
| Blue Sky HR Ltd | Administrative & support | 2025 |
| Bluecan Limited | Extraterritorial | 2014 |
| Blueworm Ltd | Real estate | 2021 |
| Blundell Build Ltd | Construction | 2020 |
| BMC Electrical Services NW Ltd | Construction | 2026 |
| BML Utility Contractors Ltd | Construction | 2008 |
| BNZ Marketing Ltd | Professional & scientific | 2022 |
| Board Beans Ltd | Hospitality | 2018 |
| Boden - Mcmahon Developments Ltd | Real estate | 2021 |
| Body Tech Winsford Ltd | Arts & recreation | 2023 |
| Boey BDM Ltd | Professional & scientific | 2024 |
| Boey Group Ltd | Financial services | 2024 |
| Bold Ventures Holdings Limited | Financial services | 2021 |
| Booher Construction Services Ltd | Construction | 2002 |
| Boost Juice Bars (UK) Limited | Wholesale & retail | 2006 |
| Border Technology Ltd | Manufacturing | 2016 |
| Boregis Ltd. | Professional & scientific | 2011 |
| Bostock Hall Management Company Limited | Hospitality | 1996 |
| Botl Media Limited | Manufacturing | 2025 |