| Bodhisattva Ltd | Administrative & support | 2014 |
| Bodwen Villas Ltd | Hospitality | 2021 |
| Body Elements Limited | Wholesale & retail | 2025 |
| Bohani Ltd | Wholesale & retail | 2026 |
| Bola Group Limited | Financial services | 2022 |
| Bold Natives Ltd | Professional & scientific | 2024 |
| Boldenka Investments Ltd | Real estate | 2006 |
| Bolesworth Asset Company Limited | Administrative & support | 2020 |
| Bolesworth Charitable Foundation | Other services | 2019 |
| Bolesworth Energy Limited | Manufacturing | 2014 |
| Bolesworth Estate Company Limited | Real estate | 1956 |
| Bolesworth Events Limited | Arts & recreation | 2020 |
| Bolesworth Holding Company 1 Limited | Administrative & support | 2019 |
| Bolesworth Holding Company 2 Limited | Administrative & support | 2019 |
| Bolesworth Investment Company Limited | Financial services | 2017 |
| Bolt Bookkeeping Limited | Professional & scientific | 2021 |
| Bolt Law Limited | Professional & scientific | 2024 |
| Boltaction Enterprises (Consulting) Limited | Administrative & support | 2015 |
| Boltaction Enterprises Limited | Professional & scientific | 2005 |
| Bonni's Pizza Limited | Hospitality | 2017 |
| Boogie Storm Ltd | Arts & recreation | 2016 |
| Book a Chef (Cheshire) Ltd | Administrative & support | 2018 |
| Book a Chef (Midlands) Ltd | Administrative & support | 2023 |
| Book a Chef Ltd | Administrative & support | 2016 |
| Booking Boosters Ltd | Information & communication | 2017 |
| Books on the Walls Ltd | Wholesale & retail | 2025 |
| Booksolve Computer Systems Limited | Information & communication | 1990 |
| Boor Hydro Limited | Energy | 2009 |
| Boost Property Services Limited | Professional & scientific | 2023 |
| Boostedfit Ltd | Wholesale & retail | 2026 |
| Booth Shipping Co Limited | Professional & scientific | 2000 |
| Borco Limited | Administrative & support | 1965 |
| Borden Liverpool LP | | 2016 |
| Boro Project Solutions Ltd | Professional & scientific | 2022 |
| Borthwen Barns Management Company Limited | Real estate | 2007 |
| BOS Waste Oils Limited | Water & waste | 2000 |
| Boss Lumber UK Limited | Wholesale & retail | 2013 |
| Boswell Construction Ltd | Construction | 2020 |
| Botanica Landscapes Limited | Administrative & support | 2018 |
| Boteler Court RTM Company Limited | Households | 2025 |
| Bottega Apparel & Accessories Ltd | Wholesale & retail | 2023 |
| Bottega Lifestyle Limited | Professional & scientific | 2017 |
| Bottega Limited | Wholesale & retail | 2007 |
| Boughton Applied Consulting Ltd | Professional & scientific | 2011 |
| Boughton Lodge Management Company Limited | Real estate | 2000 |
| Boughton Mini Market Limited | Wholesale & retail | 2025 |
| Boughton Motors Limited | Wholesale & retail | 2004 |
| Boulton Performance Ltd | Professional & scientific | 2025 |
| Bounce Sports & Games Ltd | Education | 2025 |
| Bound Oak Limited | Professional & scientific | 2011 |
| Boundary Court (Saltney) Management Company Limited | Households | 2002 |
| Boundary ROW Management Company Limited | Other services | 2017 |
| Bountiful Possessions Ltd | Wholesale & retail | 2023 |
| Bouquet & Bells Ltd | Arts & recreation | 2025 |
| Bourbon Father Limited | Wholesale & retail | 2025 |
| Bourne Investments Partnership LLP | | 2020 |
| Bourne Pharmacy Limited | Wholesale & retail | 2000 |
| BOW Chambers Property Management Ltd | Households | 2023 |
| BOW Construction and Contracting Limited | Construction | 2018 |
| Bowdens Property Investments Limited | Real estate | 1996 |
| Bower Game Studio Ltd | Information & communication | 2022 |
| Bowers Place (Widnes) Limited | Households | 2016 |
| Bowling Green Court (Chester) Limited | Households | 2002 |
| Boyd Digital Consultancy Limited | Information & communication | 2025 |
| Boyle Estates Ltd | Real estate | 2023 |
| Bozkaya&Sons Ltd | Administrative & support | 2023 |
| Bozlak Properties Ltd | Real estate | 2024 |
| BP Networks Limited | Professional & scientific | 2010 |
| BPC Investments Limited | Real estate | 1965 |
| BPR Estates Limited | Real estate | 2016 |
| Brace Digital Limited | Information & communication | 2015 |
| Bradburne Property Group Ltd | Real estate | 2025 |
| Bradcray Limited | Manufacturing | 1984 |
| Bradlets Ltd | Real estate | 2016 |
| Bradley-Bevan Housing Ltd | Real estate | 2020 |
| Bradshaw Property Services Limited | Construction | 2005 |
| Bradshaws Limited | Professional & scientific | 2001 |
| Bradshaws Plumbing and Heating Services Limited | Construction | 2012 |
| Braitch Property Ltd | Real estate | 2017 |
| Braithwaite Orthopaedics Ltd | Health & social care | 2011 |
| Brambles Whitchurch Management Company Limited | Real estate | 2016 |
| Branan Limited | Professional & scientific | 2000 |
| Brand Allies Ltd | Administrative & support | 2024 |
| Brand and Value Ltd | Wholesale & retail | 2025 |
| Brand Boosting Ltd | Wholesale & retail | 2023 |
| Brand Therapy Limited | Professional & scientific | 2025 |
| Brandegg Limited | Real estate | 2020 |
| Brandscents Associates Limited | Wholesale & retail | 2021 |
| Brasenose Associates Limited | Professional & scientific | 2026 |
| Bratherton Park Design Limited | Professional & scientific | 1989 |
| BRE Accounting Ltd | Professional & scientific | 2020 |
| Breact Limited | Hospitality | 2019 |
| Bread and Butter Inc Ltd | Hospitality | 2025 |
| Bread of Life Trading Ltd | Hospitality | 2026 |
| Breahna Property Ltd | Real estate | 2022 |
| Breahna Surgeries Ltd | Health & social care | 2023 |
| Brear Vale Management Company Limited | Other services | 2021 |
| Breeze Canvassing Solutions Limited | Administrative & support | 2025 |
| Brenbryn Ltd | Wholesale & retail | 2020 |
| Brentwood Court RTM Company Limited | Households | 2021 |