| Ashfaq Rahman Limited | Health & social care | 2007 |
| Ashley Engineering (Accrington) LLP | | 2009 |
| Ashley Engineering (Oswaldtwistle) Limited | Professional & scientific | 2009 |
| Ashra Rohail Ltd | Wholesale & retail | 2023 |
| ASI Property Peake Ltd | Real estate | 2024 |
| Asian Brothers Ltd | Real estate | 2025 |
| Asian Fish Bazaar Ltd | Wholesale & retail | 2024 |
| ASK Venture Capital Ltd | Construction | 2022 |
| Aslo Holding Company Limited | Administrative & support | 2008 |
| Aspec Construction Limited | Construction | 2013 |
| Aspire Caribbean Limited | Administrative & support | 2025 |
| Aspire Globally Limited | Administrative & support | 2017 |
| Aspire Locally Limited | Hospitality | 2020 |
| Asset Survey Solutions Limited | Professional & scientific | 2017 |
| Asset Surveys Limited | Professional & scientific | 2006 |
| Associated Business Continuity Limited | Professional & scientific | 2019 |
| Assured Auto Assistance Limited | Wholesale & retail | 2023 |
| Astley Digital Group Limited | Information & communication | 2024 |
| Aston Chemists Limited | Health & social care | 1987 |
| Aston Real Estates Limited | Real estate | 2008 |
| Astons Healthcare Ltd | Professional & scientific | 2011 |
| ASW UK Properties Ltd | Real estate | 2020 |
| ATF Unmasked CIC | Health & social care | 2025 |
| Atlantic Way Care Limited | Health & social care | 2018 |
| Atlas Property Group NW Ltd | Real estate | 2025 |
| Atlas Truck and Van Limited | Wholesale & retail | 2011 |
| ATR Cars Limited | Administrative & support | 2026 |
| Attbi Consultancy Ltd | Health & social care | 2024 |
| Attest Limited | Professional & scientific | 2011 |
| AUG Properties Ltd | Real estate | 2022 |
| Aura Construction Services Limited | Administrative & support | 2017 |
| Aura Luxe Stages Ltd | Administrative & support | 2025 |
| Aura Vestige Collective Ltd | Professional & scientific | 2024 |
| Aurora Vertex Ltd | Wholesale & retail | 2025 |
| Auto Spire Ltd | Wholesale & retail | 2021 |
| Auto-Mate Systems Limited | Administrative & support | 1995 |
| Autofix (Accrington) Limited | Wholesale & retail | 2005 |
| Autofixers Ltd | Wholesale & retail | 2024 |
| Autospire Car & Van Hire Ltd | Administrative & support | 2026 |
| Autoway Motors Ltd | Wholesale & retail | 2024 |
| AUZ Ltd | Wholesale & retail | 2026 |
| Avanti Automotive Holdings Ltd | Administrative & support | 2025 |
| Avanti Home Care (NW) Ltd | Health & social care | 2024 |
| Avault Retail Limited | Wholesale & retail | 2026 |
| AW Electrical NW Ltd. | Construction | 2023 |
| AXL Trading Limited | Wholesale & retail | 2020 |
| AYA Law Ltd | Real estate | 2023 |
| Ayan Properties NW Limited | Real estate | 2023 |
| AYP Locum Services Ltd | Health & social care | 2014 |
| Ayton Limited | Health & social care | 2021 |
| Ayub K9 Services Limited | Transport & logistics | 2021 |
| AZA Homes Ltd | Real estate | 2026 |
| Azam Law Chambers Ltd | Professional & scientific | 2026 |
| Azeka Autos Ltd | Wholesale & retail | 2025 |
| Azulo Ltd | Wholesale & retail | 2025 |
| B & a Bars Ltd | Hospitality | 2025 |
| B & a Snooker & Pool Limited | Arts & recreation | 2004 |
| B Gallagher Carpets Limited | Construction | 2003 |
| B Sagar Painting & Decorating Contractors Ltd | Construction | 2013 |
| B Secure Security Services Ltd | Administrative & support | 2018 |
| B.E.L. Precision Engineers Limited | Manufacturing | 1987 |
| BA Health Solutions Ltd | Health & social care | 2015 |
| Babylux (Mattress) Ltd | Manufacturing | 2025 |
| Bahadar & Sons Ltd | Wholesale & retail | 2026 |
| Bailey Upholstery Ltd | Manufacturing | 2024 |
| Balancaster Ltd | Hospitality | 2020 |
| Baloolas Limited | Hospitality | 2015 |
| BAN Sabai Thai Therapy Limited | Other services | 2025 |
| Bannis Trading Limited | Wholesale & retail | 2018 |
| Bargain Saver Accrington Ltd | Wholesale & retail | 2023 |
| Bark Bath & Play Limited | Other services | 2020 |
| Baron Mercer Group Limited | Manufacturing | 2004 |
| Bars by RK Ltd | Hospitality | 2025 |
| Bash Stone Supplies Limited | Manufacturing | 2024 |
| Basic Needz Limited | Wholesale & retail | 2025 |
| BAX Services (Rossendale) Limited | Wholesale & retail | 2005 |
| Baxenden & District Golf Club Limited | Hospitality | 1926 |
| Baxenden Car & Commercial Limited | Wholesale & retail | 2017 |
| Baxenden Car Breakers Ltd | Wholesale & retail | 2019 |
| Baxenden Golf Bar and Function Room Ltd | Hospitality | 2022 |
| Baxenden Properties Ltd | Real estate | 2025 |
| Baxenden Therapy Hub Ltd | Public administration | 2025 |
| Baxie Coffee Limited | Hospitality | 2024 |
| BB5 Iqbals Properties Ltd | Real estate | 2021 |
| BB5 Limited | Wholesale & retail | 2026 |
| BB5 Records Limited | Information & communication | 2009 |
| BBB Fast Food Ltd | Hospitality | 2022 |
| BC Car Sales Ltd | Wholesale & retail | 2009 |
| BC Rail Ltd | Construction | 2025 |
| BCI Transport Ltd | Transport & logistics | 2018 |
| Bcosy Ltd | Manufacturing | 2020 |
| Beaumont Estates (NW) Limited | Real estate | 2025 |
| Beautyfairbyamber Ltd | Other services | 2025 |
| BEE Happy Recruitment Ltd | Administrative & support | 2023 |
| Bees Fireworks NW Ltd | Wholesale & retail | 2025 |
| Bees Vapes Ltd | Wholesale & retail | 2025 |
| Bellissimo's Italian Burnley Ltd | Hospitality | 2024 |
| Bensonsforbedsholdco Ltd | Financial services | 2020 |
| Bensonsforbedsmanufacturing Ltd | Financial services | 2020 |
| Bensonsforbedsretail Ltd | Wholesale & retail | 2020 |