| AK Specialist Property Services Ltd | Water & waste | 2026 |
| Akash Convenience Store Limited | Wholesale & retail | 2025 |
| Alan Dick Engineering Limited | Manufacturing | 1973 |
| Alan Wilkinson (Building) Ltd | Construction | 2017 |
| ALC Properties (North West) Ltd | Real estate | 2025 |
| ALC Property Maintenance Ltd | Construction | 2023 |
| Alderson Glass Engineering Ltd | Manufacturing | 2025 |
| Alex Willis Funeral Home Limited | Other services | 2001 |
| Alexander Matthews Stays Ltd | Construction | 2023 |
| Alfie Ordonez Plumbing & Heating Ltd | Construction | 2008 |
| Alice Earnshaw Dyslexia and Dyscalculia Services (Aedds) Ltd | Education | 2026 |
| ALL Champs Lancaster Ltd | Arts & recreation | 2024 |
| ALL Seasons Driveways North West Limited | Construction | 2025 |
| ALL Seasons Paving Limited | Extraterritorial | 2008 |
| Allthorne Ltd | Wholesale & retail | 2010 |
| Alpha Engraving Limited | Professional & scientific | 2014 |
| Alpha Nature Ltd | Manufacturing | 2024 |
| Alpha Sheet Metal Limited | Manufacturing | 2002 |
| Alpinehill Property Management 2 Limited | Households | 2024 |
| Althams Catering Butchers Limited | Manufacturing | 1999 |
| Althams Fine Foods Ltd | Manufacturing | 2015 |
| Althams Food Group Limited | Financial services | 2019 |
| AM Barber Morecambe Limited | Other services | 2021 |
| AM Washington Ltd | Wholesale & retail | 2024 |
| Ambience Property Ltd | Real estate | 2025 |
| AMC (Morecambe) Limited | Arts & recreation | 2012 |
| American Hospitality Group Ltd | Hospitality | 2022 |
| Amrap Fitness Meals Ltd | Manufacturing | 2019 |
| Amtr Health Ltd | Health & social care | 2023 |
| Anderski Holdings Ltd | Financial services | 2026 |
| Anderski House Properties Ltd | Real estate | 2025 |
| Anderton & Victoria (Holdings) Limited | Professional & scientific | 2012 |
| Andrew Baxendale Decorating Limited | Construction | 2018 |
| Angelin Limited | Real estate | 2023 |
| Angelin Retail Limited | Wholesale & retail | 2026 |
| Animkat Limited | Administrative & support | 2012 |
| Antiques and Auctions Ltd | Wholesale & retail | 2024 |
| Apex Electrical (Lancashire) Ltd | Construction | 2025 |
| Apex Global Packaging Limited | Administrative & support | 2025 |
| Apex Locksmith NW Limited | Construction | 2026 |
| Apl.Me Limited | Extraterritorial | 2007 |
| Apollo Engineering & Design Ltd | Manufacturing | 2011 |
| Apolloy (UK) Ltd | Financial services | 2022 |
| Aquanti Cleaning Ltd. | Administrative & support | 2024 |
| Arbros Landscaping Ltd | Administrative & support | 2023 |
| Arcem Digital Ltd | Information & communication | 2026 |
| Ardea Eco-Innovation Ltd | Professional & scientific | 2023 |
| Aric LEE Properties Ltd | Real estate | 2023 |
| Arkwright Property Limited | Real estate | 2018 |
| ARQ Developments North West Ltd | Construction | 2026 |
| ARQ Group Ltd | Professional & scientific | 2026 |
| Arrow Energy Limited | Professional & scientific | 2015 |
| Art Nest Ltd | Professional & scientific | 2023 |
| Artisan Lane Limited | Extraterritorial | 2024 |
| Arugle Limited | Wholesale & retail | 2025 |
| Arvutimees Consulting Ltd | Information & communication | 2024 |
| Ascend CFO Ltd | Professional & scientific | 2025 |
| Asecca Limited | Wholesale & retail | 2012 |
| Ashley James Family Funeral Directors Ltd | Other services | 2026 |
| Ashton Homes (Lancashire) Limited | Construction | 2007 |
| ASJ Events Ltd | Hospitality | 2025 |
| Asphalt Paving Services Limited | Construction | 2010 |
| Assetlight Limited | Real estate | 1990 |
| Aston Commercial Investments Limited | Real estate | 2019 |
| Aston COX Property Limited | Financial services | 2016 |
| Astute Delegation Limited | Administrative & support | 2023 |
| ATA Pekun Ltd | Hospitality | 2012 |
| ATH Vodka Ltd | Manufacturing | 2022 |
| Athena Blue Ltd | Real estate | 2021 |
| Atlantic House Residents' Association (Morecambe) Limited | Households | 1974 |
| Atlas Virt Limited | Administrative & support | 2025 |
| Augmentium Limited | Administrative & support | 2016 |
| Authentic City Limited | Hospitality | 2022 |
| Avella Hair and Beauty Ltd | Other services | 2025 |
| Avensis Hospitality Ltd | Professional & scientific | 2013 |
| Avison Comms Ltd | Professional & scientific | 2023 |
| Avondale Textiles Ltd. | Manufacturing | 2011 |
| AW Engineering Services Limited | Professional & scientific | 2018 |
| AW Project Planning Ltd | Information & communication | 2009 |
| AWL Developments Ltd | Construction | 2006 |
| Ayan Barber 1 Ltd | Other services | 2026 |
| Aymus Ltd | Hospitality | 2025 |
| Aytug Properties Ltd | Real estate | 2025 |
| B C Computer Services Limited | Information & communication | 1999 |
| B C S Solutions (NW) Limited | Administrative & support | 2025 |
| B George Ltd | Construction | 2019 |
| B Local Limited | Wholesale & retail | 2025 |
| B.Army Surplus Ltd | Wholesale & retail | 2022 |
| Bach WEN Limited | Real estate | 2019 |
| Bajgar HE Consulting Ltd | Information & communication | 2022 |
| Balltec Limited | Professional & scientific | 2004 |
| Bannister Bates Limited | Administrative & support | 2009 |
| Bapulance Limited | Hospitality | 2025 |
| Baran Barber 1 Ltd | Other services | 2026 |
| Barden House Limited | Health & social care | 2021 |
| Bare Dental Clinic Limited | Health & social care | 2015 |
| Bare Hall Home Limited | Health & social care | 2010 |
| Bare Hall Quality Carers Limited | Health & social care | 2010 |
| Bare Lady's Pedicabs Limited | Arts & recreation | 2022 |
| Bare Lane Foods Limited | Wholesale & retail | 2013 |