| Atree Retail Management Ltd | Real estate | 2022 |
| Attent Ambas Limited | Wholesale & retail | 2017 |
| Attrition Recoveries Limited | Professional & scientific | 2014 |
| Auburn Oak Ltd | Construction | 2021 |
| Audinary Ltd | Professional & scientific | 2025 |
| Audio-Logical Limited | Health & social care | 2024 |
| Augustin Services Limited | Energy | 2017 |
| Aurora Collective Ltd | Information & communication | 2026 |
| Aurum Seventy Nine Limited | Administrative & support | 2025 |
| Aurylius Ltd | Information & communication | 2025 |
| Aussy Ltd | Wholesale & retail | 2025 |
| Austin Rowland Limited | Wholesale & retail | 2023 |
| Auto Care MOT Centre Limited | Wholesale & retail | 2024 |
| Auto Match Ltd | Wholesale & retail | 2019 |
| Auto Solutionz Limited | Wholesale & retail | 2022 |
| Auto Worldwide Ltd | Wholesale & retail | 2017 |
| Autobarn Motor Company Ltd | Wholesale & retail | 2022 |
| Autofix Stop Limited | Wholesale & retail | 2026 |
| Autoglam Vehicle Detailing Ltd | Wholesale & retail | 2021 |
| Autoscape Ltd | Wholesale & retail | 2023 |
| Autumn Louise Hairdressing Ltd | Other services | 2025 |
| Auvera Consulting Ltd | Professional & scientific | 2026 |
| AV Developments (North West) Ltd | Construction | 2006 |
| AV Property Management (NW) Ltd | Real estate | 2019 |
| Aveco Construction Ltd | Construction | 2023 |
| Aventura Motor Group Ltd | Wholesale & retail | 2025 |
| Avis Electrical Services Ltd | Manufacturing | 2023 |
| Avon Convenience Store Ltd | Wholesale & retail | 2024 |
| AVS Motors Ltd | Wholesale & retail | 2022 |
| AWH Specialist Limited | Information & communication | 2024 |
| Axiom Digital Limited | Information & communication | 2018 |
| Axis Motors Ltd | Wholesale & retail | 2026 |
| AY Plumb Ltd | Construction | 2026 |
| Ayat Holding Ltd | Hospitality | 2026 |
| Ayesha Trade Hub Ltd | Wholesale & retail | 2025 |
| Ayinla Ltd | Professional & scientific | 2018 |
| Ayramehmood Limited | Wholesale & retail | 2025 |
| AZ Care Nelson Ltd | Health & social care | 2026 |
| Azaan Online Mart Ltd | Wholesale & retail | 2025 |
| Azad Group of Services Ltd | Other services | 2024 |
| Azeem Brothers Ltd | Wholesale & retail | 2022 |
| AZM Holdings Limited | Real estate | 2025 |
| Aztec Motors Limited | Wholesale & retail | 2023 |
| B & B L Properties Limited | Real estate | 2024 |
| B & TG Properties Ltd | Real estate | 2024 |
| B B Business Associates Ltd | Administrative & support | 2023 |
| B&A Property Investments Ltd | Construction | 2019 |
| B&S Home Plan Limited | Real estate | 2023 |
| B.A Auto Repairs Limited | Wholesale & retail | 2023 |
| B.N.W. Company (Bakery) Services Limited | Professional & scientific | 1970 |
| B2C18 Limited | Administrative & support | 2010 |
| BA Wholesale Food Ltd | Wholesale & retail | 2021 |
| Baazz Ltd | Real estate | 2023 |
| Backhouse Construction Insurance Brokers Limited | Financial services | 1969 |
| Backhouse Independent Financial Services Limited | Financial services | 1973 |
| Backhouse Insurance Brokers Limited | Financial services | 1935 |
| Badaghe Construction Ltd | Construction | 2023 |
| Badger Ventures Ltd | Real estate | 2020 |
| Bailey Building Contractors Ltd | Construction | 2021 |
| Baja Bedford Ltd | Hospitality | 2017 |
| Bakar Building Services Ltd | Construction | 2023 |
| Bakr Consultancy Limited | Professional & scientific | 2024 |
| Bakshs Indian Kitchen Ltd | Hospitality | 2019 |
| Balance Cycling Limited | Manufacturing | 2022 |
| Bald Cleaner Ltd | Administrative & support | 2026 |
| Baldwin Engineering Group Limited | Professional & scientific | 2014 |
| BAM Heating, Plumbing and Mechanical Solutions Ltd | Construction | 2026 |
| Banjo Leisure Ltd | Hospitality | 2014 |
| Bank Self-Storage Nelson Ltd | Real estate | 2020 |
| Bano Services Limited | Manufacturing | 2018 |
| Barnfield (EOT) Limited | Financial services | 2024 |
| Barnfield and Burnley (Developments) Limited | Construction | 2011 |
| Barnfield Centric Limited | Extraterritorial | 2009 |
| Barnfield Construction Limited | Construction | 1989 |
| Barnfield Contractors (UK) Limited | Construction | 2000 |
| Barnfield Developments Limited | Extraterritorial | 2004 |
| Barnfield Group Limited | Professional & scientific | 2012 |
| Barnfield Henco Limited | Construction | 2019 |
| Barnfield Investment Properties Limited | Construction | 2000 |
| Barnfield the Grange Ltd | Construction | 2019 |
| Barracare Ltd | Health & social care | 2019 |
| Barrowclough Holdings Limited | Financial services | 2018 |
| Barrowford Autos Ltd | Administrative & support | 2021 |
| Barrowford Enterprises Limited | Other services | 2017 |
| Barrowford Health Surgery Limited | Health & social care | 2026 |
| Barrowford Indian Restaurant Ltd | Hospitality | 2019 |
| Barrowford MOT Test Centre Limited | Wholesale & retail | 2013 |
| Barrowford Podiatry Ltd | Health & social care | 2025 |
| Barrowford Pre-School Nursery Limited | Education | 2003 |
| Barrowford Properties Ltd | Real estate | 2017 |
| Bars Software Consulting Ltd | Information & communication | 2012 |
| Bashtech Consulting Ltd | Information & communication | 2019 |
| Bauer Accountants Limited | Professional & scientific | 2016 |
| BB9 Travel Ltd | Transport & logistics | 2017 |
| BBS Plumbing & Heating Limited | Construction | 2020 |
| BC Innovative Technologies Limited | Professional & scientific | 2014 |
| BDC Decorating Services Limited | Construction | 2018 |
| BDT Tech Services Ltd | Professional & scientific | 2023 |
| BE Chocolate and Patisserie Ltd | Manufacturing | 2019 |
| Beacon Innovations PVT Limited | Information & communication | 2025 |