| Bond Bond & Bond Ltd | Hospitality | 2025 |
| Boneless Brigade Ltd | Hospitality | 2022 |
| Bonham Financial Planners LLP | | 2011 |
| Bonner C Limited | Wholesale & retail | 2013 |
| BOO (GB) Limited | Other services | 2014 |
| BOO Boo's Bunny Hotel Limited | Hospitality | 2012 |
| Booicore Limited | Wholesale & retail | 2011 |
| Boomdash Digital Limited | Information & communication | 2015 |
| Boost Internet Limited | Information & communication | 2021 |
| Bootle Contracting Ltd | Construction | 2013 |
| Border Design Consultants LLP | | 2017 |
| Bossy Media Group Limited | Professional & scientific | 2025 |
| Boulder Managed Strategies Ltd | Financial services | 2026 |
| Boundary Court Property Management Company Limited | Real estate | 2005 |
| BOW Power Ltd | Wholesale & retail | 2011 |
| Bowdon Management Services Ltd | Professional & scientific | 2013 |
| Bower Design Limited | Professional & scientific | 1998 |
| Bower Mattin Partnership Limited | Professional & scientific | 2011 |
| Bowker Construction and Groundworks Ltd | Construction | 2020 |
| Boycs Limited | Information & communication | 2013 |
| Boyta Ltd | Wholesale & retail | 2023 |
| BPS (Management) Limited | Financial services | 2012 |
| Bradbury Ltd | Real estate | 2022 |
| Bradbury Wood Property Limited | Real estate | 2021 |
| Bradley Royle Limited | Real estate | 1994 |
| Bradly Sinden Ltd | Arts & recreation | 2022 |
| Bradshaw Bennett Limited | Financial services | 1961 |
| Braide Partners Ltd | Professional & scientific | 2012 |
| Bram Transport Ltd | Transport & logistics | 2020 |
| Bramble Management Company Limited | Households | 1982 |
| Branching OUT Two Limited | Professional & scientific | 2000 |
| Brandy Digital Limited | Professional & scientific | 2009 |
| Brantz Limited | Extraterritorial | 2011 |
| Brathay Childcare (Property) Limited | Health & social care | 2017 |
| Braybrooke Performance Coaching Ltd | Education | 2024 |
| Brazier Bros (Leisure) Limited | Hospitality | 1989 |
| Bread Art Limited | Professional & scientific | 2016 |
| Breakaway Training Ltd | Education | 2018 |
| Breakthrough Talent & Skills Limited | Professional & scientific | 2019 |
| Breathing Care Ltd | Health & social care | 2023 |
| Breckside Park Management Company Limited | Households | 2006 |
| Briage Limited | Construction | 1999 |
| Brickhaven Group Limited | Other services | 2025 |
| Brickhaven Ltd | Construction | 2025 |
| Brickhaven Maintenance Ltd | Real estate | 2025 |
| Bridge Street Garage Ltd | Wholesale & retail | 2016 |
| Bridgedale Outdoor Limited | Manufacturing | 1998 |
| Bridgewater Apartments Limited | Households | 2011 |
| Brierholme Consultants Ltd | Professional & scientific | 2009 |
| Bright Housing & Property Ltd | Real estate | 2023 |
| Bright Sparks Resourcing Limited | Administrative & support | 2017 |
| Bright Sparks Sports Lighting Ltd | Manufacturing | 2018 |
| Brightmore Homes Ltd | Construction | 2024 |
| Britannia Car Finance Ltd | Administrative & support | 2009 |
| Britannia Car Leasing Ltd | Administrative & support | 2018 |
| Britannia Inn Macclesfield Limited | Hospitality | 2014 |
| Britannia Leasing Ltd | Administrative & support | 2018 |
| British Acupuncture Federation | Other services | 2013 |
| Broad Oak Finance Broker Ltd | Financial services | 2026 |
| Broadcar Farm Livery Limited | Agriculture & fishing | 2026 |
| Broadoak Management (Cheshire) Limited | Real estate | 2021 |
| Broadway Investments MCR Limited | Real estate | 2020 |
| Broadway Practices Limited | Health & social care | 2019 |
| Brocklehurst Manor Management Company Limited | Households | 1999 |
| Brocklehurst Mews Maintenance Limited | Households | 1983 |
| Broken Cross Nominees Limited | Other services | 2007 |
| Bronafallen Care Home Ltd | Health & social care | 2018 |
| Bronze Creator Limited | Other services | 2024 |
| Brookes Services Ltd | Professional & scientific | 2021 |
| Brookside Court Management (Macclesfield) Limited | Households | 1984 |
| Brookside Garage & M. O. T. Centre Limited | Wholesale & retail | 2003 |
| Brookside Mill Flat Management Company Limited | Households | 2004 |
| Brookside Welding Supplies Limited | Wholesale & retail | 1986 |
| Brookson (5223D) Limited | Administrative & support | 2007 |
| Brown & Co Holdings Ltd | Financial services | 2021 |
| Brown Street Properties Limited | Real estate | 2007 |
| Brtisai Ltd | Information & communication | 2025 |
| Bryn Derwen ST Asaph Ltd | Health & social care | 2018 |
| Bryn Y MOR Hotel Limited | Hospitality | 2025 |
| BSC Poachers Ltd | Hospitality | 2026 |
| Btbuk Limited | Other services | 2023 |
| BTF Properties Limited | Households | 2012 |
| BTL Distributions Ltd | Wholesale & retail | 2025 |
| Build Financial Plan Ltd | Financial services | 2023 |
| Builder Linx Ltd | Construction | 2025 |
| Building Conversion Developments Limited | Construction | 2016 |
| Buildingprojectmanagement Ltd | Construction | 2024 |
| Bulbazaar Ltd | Wholesale & retail | 2023 |
| Bullock House (Macclesfield) Management Limited | Administrative & support | 2005 |
| Bulls Head Broken Cross Ltd | Hospitality | 2024 |
| Bullshed Bar and Kitchen Ltd | Hospitality | 2026 |
| Bundlebox Ltd | Wholesale & retail | 2025 |
| Burgess Property Solutions Limited | Financial services | 2017 |
| Burns Property Investments Limited | Real estate | 2017 |
| Burnt Acre Limited | Information & communication | 2019 |
| Burton Mccall Limited | Wholesale & retail | 1987 |
| BUS 2 HGV Ltd | Wholesale & retail | 2019 |
| Business 4 AI Ltd | Professional & scientific | 2020 |
| Business Insolvency Services Limited | Administrative & support | 2019 |
| Business Protect Limited | Financial services | 2010 |