| Beats' Beer Limited | Hospitality | 2025 |
| Beau's Kitchen Ltd | Hospitality | 2022 |
| Beaumaris Court Management Limited | Households | 1998 |
| Beautiful Cards & Gifts of Greasby Ltd | Wholesale & retail | 2018 |
| Beautiful Minds Talking Therapy Service Limited | Health & social care | 2019 |
| Beauty Lounge Aesthetics Ltd | Other services | 2025 |
| Beauty on the Lane (Wirral) Limited | Other services | 2025 |
| BEB Laundrette Ltd | Other services | 2021 |
| BEB Mobile Phones Ltd | Wholesale & retail | 2025 |
| Bebington Acupuncture & Healthcare Limited | Health & social care | 2019 |
| Bebington Bargains Ltd | Wholesale & retail | 2026 |
| Bebington Glass Ltd | Construction | 2021 |
| Bebington Glazing (NW) Ltd | Construction | 2018 |
| Bebington Gymnastics Club Limited | Arts & recreation | 2014 |
| Bebington Oaks Management Company Limited | Households | 2015 |
| Beccy Swaffer Ltd | Administrative & support | 2026 |
| Bedford Bar UK Ltd | Hospitality | 2019 |
| Beeches Auto's Limited | Wholesale & retail | 2013 |
| Beer Please Ltd | Hospitality | 2022 |
| Beers Timber Holdings Limited | Financial services | 2017 |
| Behind the IT Ltd | Information & communication | 2022 |
| Beka Property Finance Limited | Financial services | 2023 |
| BEL Maria Limited | Real estate | 2016 |
| Beldi Cafè Limited | Extraterritorial | 2022 |
| Belger Limited | Professional & scientific | 2007 |
| Bellagio Lets Limited | Real estate | 2021 |
| Bellarose Homes Ltd | Real estate | 2024 |
| Bellissima M Limited | Professional & scientific | 2007 |
| Bello Napoletana Pizzeria Ltd | Hospitality | 2024 |
| Bello Napoletana Sweet Ltd | Hospitality | 2025 |
| Belmar Murray Property Developers Limited | Construction | 2021 |
| Belmin Associates Limited | Professional & scientific | 2014 |
| Belmont Engineering Limited | Professional & scientific | 2015 |
| Beloved Homecare Ltd | Education | 2020 |
| Beloved Light Limited | Information & communication | 2015 |
| Belper Properties Limited | Real estate | 2023 |
| Belvidere Properties Ltd | Real estate | 2018 |
| Belvidere Property Services Ltd | Real estate | 2016 |
| BEN Fessey Barbering Limited | Other services | 2016 |
| BEN SAW GP Services Limited | Health & social care | 2019 |
| Benjamin Construction Limited | Construction | 2017 |
| Benjamin Oliver Properties Ltd | Real estate | 2024 |
| Bensonova Group Limited | Hospitality | 2022 |
| Bensonova Limited | Hospitality | 2010 |
| Bensonshaw Trading Ltd | Wholesale & retail | 2025 |
| BEP Estates Ltd | Real estate | 2025 |
| Bepart Educational Trust | Education | 2010 |
| Bercon Rebar Ltd | Construction | 2016 |
| Bercon Reinforcements Ltd | Construction | 2025 |
| Bergh Ltd | Financial services | 2022 |
| Berko Barber Ltd | Other services | 2019 |
| Berm IT Futures Ltd | Information & communication | 2021 |
| Berrington Power Network Engineering Ltd | Other services | 2015 |
| Berry Street Flat Management Limited | Households | 2004 |
| Bertram Burrows Limited | Professional & scientific | 2012 |
| Bertram Close Residents Association Limited | Extraterritorial | 2006 |
| Besa Property Ltd | Construction | 2025 |
| Bespoke Tax Services Limited | Professional & scientific | 2016 |
| Best House Estate and Lettings Agent Ltd | Real estate | 2025 |
| Best of Best Ltd | Professional & scientific | 2023 |
| Best Practice Online Limited | Information & communication | 1997 |
| Best Start Cafe Ltd | Hospitality | 2025 |
| Best Start Daycare Ltd | Health & social care | 2021 |
| Best Wishes (Wirral) Limited | Wholesale & retail | 2004 |
| BEST4PETS Ltd | Wholesale & retail | 2025 |
| Bestco Limited | Wholesale & retail | 1996 |
| BET Data Consultants Ltd | Professional & scientific | 2024 |
| Beta Property Ltd | Real estate | 2015 |
| Beth Cartwright Ltd | Education | 2024 |
| Better Ideas Ltd | Information & communication | 2025 |
| Bettisfield Farm Limited | Administrative & support | 2025 |
| Between Friends Limited | Other services | 2014 |
| Beverich Incup UK Limited | Wholesale & retail | 2014 |
| Beyond Nurseries Limited | Administrative & support | 2023 |
| Beyond Strategic Ltd | Professional & scientific | 2026 |
| Beyond Vitality Ltd | Wholesale & retail | 2025 |
| BFA (NW) Ltd | Wholesale & retail | 2023 |
| BFL Auctions Limited | Real estate | 2008 |
| BFL Estate Agents Limited | Real estate | 2008 |
| BFS Media Ltd | Professional & scientific | 2024 |
| BG Financial Services Ltd | Financial services | 2012 |
| BI - Becomingu Limited | Information & communication | 2025 |
| Bibby Precision Engineering Limited | Manufacturing | 2002 |
| Bidco Limited | Professional & scientific | 2021 |
| Bien (Irby) Limited | Other services | 2015 |
| Bien Beauty Limited | Other services | 2015 |
| Bien Hair & Beauty Limited | Other services | 2003 |
| Bien Hair and Beauty (Irby) Limited | Other services | 2015 |
| Bien Hair and Beauty (Upton) Limited | Other services | 2015 |
| Biengineering Ltd | Wholesale & retail | 2025 |
| Big Al's Barber Shop Limited | Other services | 2017 |
| Big Blue Bar Limited | Hospitality | 2007 |
| Big Blue Computers Limited | Water & waste | 2006 |
| Big Blue Plastics Limited | Water & waste | 2006 |
| Big Blue Power Limited | Other services | 2004 |
| Big Blue Recycling Limited | Water & waste | 2006 |
| Big Byte Insights Limited | Wholesale & retail | 2025 |
| Big P Scaffolding Ltd | Construction | 2023 |
| Bilc Ltd | Transport & logistics | 2015 |
| Bill Cross Marine Services Ltd | Other services | 2016 |