| Barts Healthcare Limited | Administrative & support | 2022 |
| Bates Property Management Ltd | Real estate | 2026 |
| Bathrooms by Myers Limited | Construction | 2017 |
| BB Precision Engineering Ltd | Construction | 2025 |
| BDL Fire Protection Ltd | Construction | 2015 |
| Beadman Project Management Ltd | Construction | 2025 |
| Beadman Property Ltd | Real estate | 2026 |
| Beauty on View Limited | Other services | 2017 |
| Beesley Commissioning and Technical Services Limited | Professional & scientific | 2012 |
| Beesley Engineering Services Limited | Professional & scientific | 2025 |
| Beesley Lettings Ltd | Real estate | 2021 |
| Bella Rentals Ltd | Real estate | 2020 |
| Bentley & Sinclair Domestic and Industrial Cleaning Ltd | Administrative & support | 2025 |
| Beverston Engineering Limited | Manufacturing | 1974 |
| Beyond the City CIC | Arts & recreation | 2025 |
| BG 7 Fitness Pro Limited | Arts & recreation | 2016 |
| BG Fiber Limited | Information & communication | 2024 |
| BG Water Services Limited | Professional & scientific | 2019 |
| Big H Heating Limited | Construction | 2003 |
| BK Electrical Services North West Limited | Construction | 2013 |
| Black Knight Homes Limited | Real estate | 2023 |
| Blaney & Boyd Financial Services Ltd | Financial services | 2012 |
| Blanna Organics Ltd | Manufacturing | 2020 |
| Blazing Inferno Limited | Real estate | 2012 |
| Blends Flavours & Colours Limited | Manufacturing | 2017 |
| Blends Group Ltd | Financial services | 2023 |
| Blends Holdings Limited | Manufacturing | 2017 |
| Blends Limited | Manufacturing | 1998 |
| BLF Joinery Limited | Manufacturing | 2009 |
| BLINDS2YOU Limited | Wholesale & retail | 2020 |
| Bloom & Hive Consulting Ltd | Information & communication | 2025 |
| Bloom Prescot Ltd | Health & social care | 2017 |
| Blue Crow Systems Ltd | Information & communication | 2021 |
| Blue Mango Indian Restaurant Ltd | Hospitality | 2016 |
| Blue Mountain Healthcare Ltd | Administrative & support | 2021 |
| Bluebird Drinks Consultancy Limited | Professional & scientific | 2022 |
| Blueskyfx Capital Ltd | Other services | 2024 |
| Blundell (Files & Tools) Limited | Wholesale & retail | 1976 |
| Blundells Hill Golf Club Limited | Arts & recreation | 1992 |
| Bold Transmission Parts (Sales) Limited | Manufacturing | 2000 |
| Bolton Street Developments Ltd | Construction | 2024 |
| Bomac Electric Limited | Administrative & support | 1976 |
| Boss Electrical Ltd | Construction | 2015 |
| Boundary Fireworks Ltd | Wholesale & retail | 2025 |
| Bowers C Ltd | Construction | 2026 |
| BQ Dent-Supplies Ltd | Manufacturing | 2026 |
| Brain Sage Ltd | Professional & scientific | 2023 |
| Breakerfall Safeguarding Ltd | Education | 2022 |
| Breemis Properties Ltd | Real estate | 2025 |
| Breeze Apps Ltd | Information & communication | 2018 |
| Brian William Estates Ltd | Real estate | 2023 |
| Bricks & Mortar Portfolio Ltd | Real estate | 2020 |
| Brierley Benson Properties Ltd | Real estate | 2026 |
| Bright Choice Building Services Ltd | Administrative & support | 2025 |
| Broadgreen Building & Roofing Services Ltd | Construction | 2003 |
| Brokeback Ltd | Wholesale & retail | 2022 |
| Brooks Developments (NW) Ltd | Real estate | 2019 |
| Brooks Estate and Letting Agents Ltd | Real estate | 2015 |
| Brookson (5864N) Limited | Administrative & support | 2007 |
| BRP Electrical Services Ltd | Construction | 2026 |
| Bryken Group Holdings Limited | Professional & scientific | 2017 |
| BSL 4 ALL Limited | Professional & scientific | 2022 |
| BT Flavours Limited | Manufacturing | 2025 |
| BTL Homes & Properties Ltd | Real estate | 2025 |
| Buddha Therapies Limited | Health & social care | 2014 |
| Budget Car Deliveries Limited | Transport & logistics | 2013 |
| Buffalo Bookkeeping Ltd | Professional & scientific | 2025 |
| Buffalo Mindset Limited | Other services | 2018 |
| Builders Scope Limited | Construction | 2025 |
| Built 4 Entertainment Ltd | Other services | 2011 |
| Burrows Lane Farm Educational Equestrian Centre Ltd | Education | 2009 |
| Butler & Co Law Ltd | Professional & scientific | 2024 |
| Butterworth Barlow Limited | Professional & scientific | 2011 |
| Butterworth Barlow Projects Limited | Professional & scientific | 2009 |
| C D M Compliance Limited | Professional & scientific | 2014 |
| C H Ainsworth and SON Limited | Construction | 2013 |
| C&L Aesthetics Lounge Limited | Health & social care | 2017 |
| C.D.M Housing Limited | Real estate | 2023 |
| C41'S Limited | Manufacturing | 1998 |
| C4CLEANSING Ltd | Administrative & support | 2019 |
| CAH Engineering Ltd | Manufacturing | 2025 |
| Calea Investments UK Limited | Real estate | 2025 |
| Cameron Mackenzie (Merseyside Lettings) Limited | Real estate | 2012 |
| Cameron Mackenzie Property Management Limited | Real estate | 2002 |
| Canlines Holdings Limited | Other services | 2020 |
| Care Activity Hub Limited | Health & social care | 2020 |
| Care Angels 2019 Limited | Health & social care | 2019 |
| Care Collective NW Ltd | Health & social care | 2025 |
| Care Global Group of Companies. COM Limited | Information & communication | 2025 |
| Care One OS Ltd | Information & communication | 2015 |
| Cargill Industrial Associates Ltd | Professional & scientific | 2018 |
| Carina Mina Limited | Health & social care | 2025 |
| Carousel Car Parts Limited | Wholesale & retail | 2019 |
| Case Resources Limited | Professional & scientific | 2026 |
| Castle Support Ltd | Administrative & support | 2023 |
| Catalyst Careers Ltd | Education | 2024 |
| Caul Transport Services Limited | Transport & logistics | 2025 |
| CB Project Services Ltd | Professional & scientific | 2025 |
| Cbtr Holdings Limited | Financial services | 2023 |
| CC Elec Limited | Construction | 2016 |