| Beauty With Sarah Heyes Ltd | Other services | 2019 |
| Becki Beavan Hair Ltd | Other services | 2024 |
| BEE BEE 4 Ltd | Manufacturing | 2026 |
| Bee's Baristas Ltd | Hospitality | 2024 |
| Beeyond Tuition Limited | Education | 2025 |
| Behind the Glass Windows, Doors & Glazing Ltd | Construction | 2025 |
| Beta Group Holdings Limited | Professional & scientific | 2006 |
| Better Networking Hub Ltd | Administrative & support | 2024 |
| Bill Logan Associates Limited | Professional & scientific | 2010 |
| Bistro (Rossendale) Limited | Hospitality | 2024 |
| Bitumen Property Letting Ltd | Extraterritorial | 2017 |
| Bitumen Tanker Services Ltd | Transport & logistics | 2011 |
| BJG Developments Ltd | Construction | 2025 |
| BK Bodyworks Ltd | Wholesale & retail | 2022 |
| Blackburn Practice Limited | Health & social care | 2011 |
| Blackbury Ltd | Real estate | 2025 |
| Blackstar London Limited | Arts & recreation | 2012 |
| Blackstar Management London Limited | Arts & recreation | 2021 |
| Blackwolf Secure Limited | Information & communication | 2024 |
| Blue Ribbon Network Ltd | Transport & logistics | 2009 |
| Bluebell GIN Limited | Manufacturing | 2019 |
| Bluer's Ltd | Wholesale & retail | 2026 |
| Blush Beauty (Rossendale) Limited | Other services | 2018 |
| BM Electrical Systems Ltd | Construction | 2024 |
| Bo-Speed Shed Worx Ltd | Wholesale & retail | 2021 |
| Boarsgreave Developments Limited | Real estate | 2003 |
| Bobhead Limited | Wholesale & retail | 2019 |
| Bodo & Turner Properties Ltd | Households | 2021 |
| Bodo Prep & Go Ltd | Hospitality | 2021 |
| Boltcrown Limited | Professional & scientific | 2000 |
| Bombox (UK) Ltd | Professional & scientific | 2003 |
| Bootstrap Digital Ltd | Information & communication | 2021 |
| Boppies Limited | Wholesale & retail | 2020 |
| Born Software Ltd | Information & communication | 2015 |
| Boundary Garage Limited | Wholesale & retail | 2002 |
| Boutique Bars Ltd | Hospitality | 2024 |
| Bowtree Homecare Ltd | Health & social care | 2021 |
| Bowwowmiaow Ltd | Other services | 2011 |
| Box Bar Limited | Hospitality | 2006 |
| Boys Holdings PLC | Real estate | 1969 |
| BPS Nationwide Limited | Construction | 2026 |
| Bradleyphysio Rossendale Limited | Health & social care | 2017 |
| Brain Health NOW Ltd | Manufacturing | 2023 |
| Breakfree Digital Ltd | Information & communication | 2024 |
| Bridge Astley Limited | Professional & scientific | 2010 |
| Bridge Catering Fabrications Ltd | Manufacturing | 2000 |
| Bridge Living CIC | Hospitality | 2026 |
| Bridge Removals and Storage Limited | Transport & logistics | 2024 |
| Bridge Storage and Removals Ltd | Transport & logistics | 2020 |
| Bright Futures Early Learning | Education | 2012 |
| Brighter Solutions (Print) Ltd | Information & communication | 2021 |
| Brightside Energy Ltd | Construction | 2024 |
| Brogini Brands Limited | Wholesale & retail | 2004 |
| Brooks' Books Limited | Professional & scientific | 2019 |
| Brooksingh Limited | Construction | 2016 |
| Brother Developments (Foulridge) Limited | Construction | 2018 |
| Brother Developments (Worsthorne) Ltd | Construction | 2021 |
| Brother Developments (Yorkshire) Limited | Real estate | 2005 |
| Brother Developments Limited | Real estate | 1993 |
| Brother Investments Limited | Real estate | 2000 |
| Bubblo’S Wash and DRY Ltd | Other services | 2025 |
| Buckhelm Construction Company Ltd | Construction | 2026 |
| Budget Bargain World Limited | Wholesale & retail | 2022 |
| Buildco Reserve Ltd | Construction | 2022 |
| Bung Self Storage Ltd | Administrative & support | 2026 |
| Bunker BJJ Ltd | Wholesale & retail | 2023 |
| Bury GAS Services Limited | Construction | 2004 |
| Busa Legal Ltd | Professional & scientific | 2025 |
| Business Over Breakfast (North West) Limited | Administrative & support | 2007 |
| Butterfly Real Estate Ltd | Real estate | 2025 |
| BY Select Ltd | Wholesale & retail | 2020 |
| C & B Coal Co Limited | Wholesale & retail | 1981 |
| C Caswell Holdings Ltd | Professional & scientific | 2011 |
| C D M Conservatories Limited | Construction | 2003 |
| C D M Windows Limited | Construction | 2003 |
| C J Auto Electrical Limited | Wholesale & retail | 2014 |
| C. B. Haulage Limited | Transport & logistics | 2003 |
| C. Caswell Engineering Services Limited | Manufacturing | 1974 |
| C. Parkinson (Bury) Limited | Construction | 2004 |
| C.S. Engineering (NW) Limited | Manufacturing | 2019 |
| C8VA Limited | Information & communication | 2015 |
| Cabmasters Limited | Extraterritorial | 2000 |
| Cabr Engineering Ltd | Professional & scientific | 2025 |
| Cadeaux 2 Gadgets Ltd | Wholesale & retail | 2022 |
| Cameron Cole Limited | Administrative & support | 2014 |
| Camorada Ltd | Manufacturing | 2014 |
| Candy Flush Ltd | Wholesale & retail | 2025 |
| Capelli Design Limited | Other services | 2018 |
| Carney Carr Therapy Farm Limited | Health & social care | 2024 |
| Carr Construction and Development Limited | Construction | 2021 |
| Carr Drift Colliery Company,Limited | Real estate | 1954 |
| Carvansons Ltd | Manufacturing | 2013 |
| Case Construction NW Ltd | Construction | 2022 |
| Caspian Pizza Helmshore Limited | Hospitality | 2025 |
| Castle Barbers (Edgeley) Limited | Other services | 2020 |
| Castleandra Estates Ltd | Hospitality | 2026 |
| Catermaster Engineering Limited | Professional & scientific | 2024 |
| Catholica Ltd | Information & communication | 2024 |
| Cats Cradle Tattoo Studio Limited | Other services | 2016 |
| CBF Horsebox Hire Ltd | Administrative & support | 2019 |