| Askal Computer Services Limited | Information & communication | 1998 |
| Aspire Prestige Ltd | Wholesale & retail | 2001 |
| Astley Bridge Bowling Green Community Interest Company | Hospitality | 1895 |
| Astra Heights Ltd | Health & social care | 2023 |
| Astragarda Limited | Information & communication | 1997 |
| Astral Electrical Limited | Construction | 2002 |
| Asympcom Limited | Information & communication | 2008 |
| ATC Construction & Design Limited | Administrative & support | 1999 |
| Atherleigh Building Company Limited | Construction | 2002 |
| Atherton Contracts Limited | Transport & logistics | 2007 |
| Athertons Limited | Administrative & support | 2002 |
| Atlanta Developments Limited | Wholesale & retail | 1995 |
| Atlantis Corporation UK Limited | Information & communication | 1997 |
| Atlantis Holdings London Limited | Extraterritorial | 2008 |
| Atlascraft Ltd | Wholesale & retail | 2006 |
| ATP Maintenance Limited | Construction | 2003 |
| Audenshaw Wine Cellar Limited | Wholesale & retail | 2002 |
| August Blossom Ltd | Wholesale & retail | 2025 |
| Austhall Holdings Limited | Manufacturing | 2003 |
| Austin Hayward Associates Limited | Professional & scientific | 2005 |
| Autolex Garage Services Limited | Wholesale & retail | 2003 |
| AYB Law Limited | Professional & scientific | 2005 |
| B & J Travel Ltd | Transport & logistics | 2004 |
| B and a Precision Engineering Limited | Manufacturing | 2006 |
| B E Hargan Limited | Wholesale & retail | 2001 |
| B Keenan Ltd | Mining & quarrying | 2008 |
| B Manchester Joinery Ltd | Construction | 2006 |
| B Marsh Driving School Limited | Other services | 2002 |
| B V Builders (Bolton) Limited | Administrative & support | 2007 |
| B&P Limited | Construction | 2017 |
| B. Dugdale & SON Limited | Professional & scientific | 2003 |
| B.A. Jackson Limited | Wholesale & retail | 1961 |
| B.C.S. Disposables Limited | Extraterritorial | 2001 |
| B.J. Ashworth Electrical Services Limited | Construction | 2003 |
| B.W.P. Painting & Decorating Limited | Administrative & support | 2006 |
| B2B Consulting Limited | Information & communication | 2003 |
| B3 Engineering Ltd | | 2004 |
| B3P Services Limited | Construction | 2005 |
| Baalhari Limited | Wholesale & retail | 2003 |
| Baba Scans Ltd | Health & social care | 2006 |
| Backhouses Limited | Professional & scientific | 1991 |
| Bacup Masonic Association Limited(The) | Other services | 1973 |
| Badgers Walk (Lytham) Limited | Real estate | 2002 |
| Baerlocher UK Limited | Manufacturing | 1973 |
| Bambers Auto Machining Specialists Limited | Wholesale & retail | 2004 |
| Bamford Contract Services Limited | Administrative & support | 1990 |
| Bangladesh Association and Community Project | Information & communication | 2001 |
| Bank END Caravan Park Limited | Hospitality | 2003 |
| Bar Code Data Limited | Information & communication | 1990 |
| Barbara KAY Ltd | Wholesale & retail | 2006 |
| Barika Consulting Limited | Professional & scientific | 2023 |
| Barley Leisure Ltd | Arts & recreation | 2001 |
| Barnes Plastic Welding Equipment Limited | Wholesale & retail | 1998 |
| Barnes Street Garage Limited | Wholesale & retail | 1975 |
| Barnsdale Properties Ltd | Extraterritorial | 2000 |
| Barron's of Beef Ltd | Wholesale & retail | 2007 |
| Barrow Optical Ltd | Wholesale & retail | 2017 |
| BAS Computers Systems Ltd | Information & communication | 1998 |
| Base Tanning & Wellness Studio Limited | Health & social care | 2026 |
| Basement Multimedia Limited | Information & communication | 2002 |
| Basnetts of Darwen Limited | Hospitality | 1987 |
| Batish Investments Limited | Real estate | 2002 |
| Baxter Construction Limited | Construction | 1990 |
| Baxter Estates Limited | Construction | 2000 |
| Baxter Homes Limited | Construction | 2002 |
| Bay Health Care Limited | Professional & scientific | 2013 |
| Baypower Engineers Limited | Other services | 2002 |
| BCP Corporate Limited | Professional & scientific | 2004 |
| Beauland Limited | Health & social care | 1981 |
| Beech House School Limited | Education | 1993 |
| Beem UK Limited | Real estate | 2000 |
| Beingcareful Ltd | Real estate | 2002 |
| Bellshire Accountancy Limited | Professional & scientific | 2001 |
| BEN Bateson (Auto Body Repairs) Limited | | 1978 |
| BEN Greenwood Services Limited | Transport & logistics | 2006 |
| Bennett Bros (Ashton-Under-Lyne) Limited | | 1947 |
| Bennett's Property Development Limited | Real estate | 2006 |
| Bentgate Properties Limited | Real estate | 2000 |
| Bentley Designs Limited | Administrative & support | 1998 |
| Berens Supplies Limited | Wholesale & retail | 2006 |
| Bernie Atherton Carpets Limited | Wholesale & retail | 2003 |
| Berringdon Investments Limited | Households | 1964 |
| Berties Bike Breakers Limited | Wholesale & retail | 2002 |
| Bespoke Manufacturing Software Limited | Information & communication | 2006 |
| Best Asian Media Limited | Information & communication | 2001 |
| Bethany Living Limited | Real estate | 2006 |
| Better Business Limited | Information & communication | 1998 |
| BH Dairies Limited | Wholesale & retail | 2002 |
| BH Electrical Contractors Ltd | Construction | 2007 |
| BIB Construction Ltd | Construction | 2003 |
| Bibbo Services Ltd | Administrative & support | 2005 |
| Big BEN Scaffolding (North West) Limited | Construction | 2002 |
| Big Brother Associates Limited | Wholesale & retail | 1998 |
| Big Deal (Cleveleys) Limited | Wholesale & retail | 2004 |
| Bika Products Limited | Manufacturing | 1995 |
| Billington & Redman Builders | | 1991 |
| Bills Tattoo Limited | Other services | 2002 |
| BIM United Kingdom Limited | Manufacturing | 1970 |
| Bins-N-Benches Limited | Manufacturing | 2005 |
| Birkacre Nurseries Limited | Wholesale & retail | 2004 |