| Blend (Merseyside) Ltd | Hospitality | 2025 |
| Blindside Sport Ltd | Wholesale & retail | 2026 |
| BLK GAS Services Installations Ltd | Construction | 2024 |
| Bloom & Brew Ltd | Wholesale & retail | 2021 |
| Bloom-In-Moulding Ltd | Manufacturing | 2020 |
| Bloom-In-Products Ltd | Manufacturing | 2020 |
| Blowfish Group Limited | Financial services | 2018 |
| Blue Foster Ltd | Real estate | 2019 |
| Blue Link Estates Limited | Construction | 2026 |
| Blue Ocean Ecom Limited | Wholesale & retail | 2021 |
| Blue Rooms Developments Limited | Real estate | 2025 |
| Blue Rooms Group Limited | Financial services | 2025 |
| Blue Rooms Housing Limited | Real estate | 2019 |
| Blue Sky Fusion LLP | | 2011 |
| Blue Slate Property Management Limited | Real estate | 2017 |
| Blueberry Street Limited | Wholesale & retail | 2017 |
| Bluefish Digital Services Limited | Professional & scientific | 2008 |
| Bluesock.Com Limited | Information & communication | 2007 |
| Bluestone Archaeology C.I.C. | Professional & scientific | 2015 |
| Bluestone Consult Ltd | Professional & scientific | 2025 |
| Bluestone Leisure Limited | Other services | 2018 |
| Blythe Business Services Ltd | Professional & scientific | 2018 |
| Blythe Capital | Financial services | 2018 |
| Blythe Construction Ltd | Construction | 2014 |
| Blythe Investments | Financial services | 2018 |
| Blythe Meadow Management Company Limited | Other services | 2012 |
| Blythe Ventures Ltd | Real estate | 2022 |
| BOB Properties Limited | Construction | 2026 |
| Boer Consultants Limited | Administrative & support | 2006 |
| Boiler Care NW Ltd | Construction | 2010 |
| Bolder Properties Limited | Real estate | 1998 |
| Bolton Construction (NW) Ltd | Hospitality | 2021 |
| Bombshell Beauty Ormskirk Limited | Other services | 2024 |
| BON Voyage Executive Travel Limited | Transport & logistics | 2023 |
| Bontan Beats Ltd | Information & communication | 2018 |
| Boomthing Limited | Professional & scientific | 2020 |
| Border Shield Limited | Construction | 2021 |
| Bordighera Limited | Professional & scientific | 2011 |
| Boscobel Holdings Limited | Financial services | 2025 |
| Boss Building Plastics Ltd | Wholesale & retail | 2021 |
| Bottleneck Brewing Co Limited | Hospitality | 2015 |
| Bowes Renovations Limited | Real estate | 2021 |
| Bowls Buddies LLP | | 2022 |
| Braan Property Ltd | Real estate | 2020 |
| Brackenwood Design Limited | Manufacturing | 2025 |
| Brake Bonding (North West) Limited | Construction | 2023 |
| Bramleys Coffee House Limited | Hospitality | 2017 |
| Branded Telecom (North West) Ltd | Information & communication | 2024 |
| Branded Telecoms Ltd | Information & communication | 2003 |
| Brandreth House Limited | Hospitality | 2013 |
| Brendarco Limited | Agriculture & fishing | 2012 |
| Brick Addiction Limited | Wholesale & retail | 2015 |
| Bridge END Holdings Limited | Real estate | 2022 |
| Bridge Transport Management Ltd | Professional & scientific | 2017 |
| Brighter Futures Property Holdings Ltd | Real estate | 2026 |
| Brightline Investments Limited | Financial services | 2023 |
| Brightmove Property Services Limited | Administrative & support | 2019 |
| Briony Machin Limited | Arts & recreation | 2025 |
| Brit Pantry Exports Ltd | Wholesale & retail | 2024 |
| Brita Logistics Ltd | Transport & logistics | 2024 |
| Britaniacrest Limited | Arts & recreation | 2002 |
| Broad Aspect Fencing Ltd | Administrative & support | 2023 |
| Bronson Securities Limited | Administrative & support | 2023 |
| Brookfield Plumbing & Heating Ltd | Construction | 2023 |
| Brookhouse Assets Limited | Real estate | 2016 |
| Brow Farm Ltd | Agriculture & fishing | 2005 |
| Brown COW Eccleston Ltd | Hospitality | 2023 |
| Bryant Care Group Limited | Public administration | 2025 |
| Bryant-Aird Communications Ltd | Professional & scientific | 2023 |
| Brynmor Properties Ltd | Wholesale & retail | 2011 |
| BSA Foods (Southport) Limited | Wholesale & retail | 2002 |
| BSK Driveways Limited | Construction | 2021 |
| Builders Beams North West Ltd | Manufacturing | 2022 |
| Building Best Business Ltd | Professional & scientific | 2023 |
| Bull and Dog (Burscough) Ltd | Professional & scientific | 2018 |
| Burgess Road Surfacing Ltd | Construction | 2020 |
| Burscough Beauty Rooms Ltd | Other services | 2025 |
| Burscough Community Farm Community Interest Company | Other services | 2016 |
| Burscough Physiotherapy Limited | Health & social care | 2011 |
| Burscough PUB Co Ltd | Hospitality | 2019 |
| Burscough Rewinds Ltd | Manufacturing | 2026 |
| Burscough Street Management Co. Ltd. | Professional & scientific | 1990 |
| Burscough Tiling Contractors Ltd | Construction | 2025 |
| Burscough Wharf Holdings Limited | Financial services | 2019 |
| Burscough Wharf Limited | Financial services | 2019 |
| Burscough Windows Ltd | Construction | 2024 |
| Butcher Farrell (Ormskirk) Ltd | Wholesale & retail | 2024 |
| Butcher Farrell Ltd | Wholesale & retail | 2021 |
| Buy and Sell Worldwide Limited | Hospitality | 2017 |
| By.Ml Ltd | Wholesale & retail | 2025 |
| Bycassandrjane Ltd | Wholesale & retail | 2026 |
| Byrne Solicitors Limited | Professional & scientific | 2012 |
| C a Design Interiors Limited | Administrative & support | 2014 |
| C Buckton Ltd | Transport & logistics | 2025 |
| C G Dental Laboratory Ltd | Professional & scientific | 2013 |
| C J Lyon & Sons Ltd | Water & waste | 2021 |
| C J Optics Limited | Wholesale & retail | 2002 |
| C J Ventilation Ltd | Construction | 2024 |
| C P D Projects Ltd | Construction | 2023 |
| C Pritchard Plumbing & Heating Ltd | Construction | 2026 |