| Alex Stewart International Inspections Ltd | Financial services | 2018 |
| Alexander Kane Estates Ltd | Households | 2025 |
| ALG73 Ltd | Information & communication | 2023 |
| ALJ Property Management Limited | Real estate | 2020 |
| Alkidra & Sons UK Ltd | Wholesale & retail | 2017 |
| Alkidra Estates Limited | Real estate | 2024 |
| Alkin Chef Ltd | Hospitality | 2021 |
| ALL About Place Ltd | Professional & scientific | 2023 |
| ALL in One Stanley RD Ltd | Wholesale & retail | 2025 |
| ALL Level MHE Training Ltd | Administrative & support | 2021 |
| ALL Round Waste Solutions Ltd | Transport & logistics | 2025 |
| Allan's Barber L20 Ltd | Other services | 2026 |
| Allan's Barber Limited | Other services | 2016 |
| Allegra Sloane Holdings Limited | Financial services | 2025 |
| Allerton Furniture Centre Ltd | Wholesale & retail | 2026 |
| Allglaze (NW) Limited | Construction | 2013 |
| ALM Services NW Ltd | Administrative & support | 2026 |
| Alnajar Fastfood Ltd | Hospitality | 2026 |
| Alpha Garage Bootle Ltd | Wholesale & retail | 2024 |
| Alphakamb Ltd | Transport & logistics | 2025 |
| Alps Scaffolding Ltd | Construction | 2019 |
| ALS Properties NW Ltd | Real estate | 2026 |
| Alshifa Ltd | Wholesale & retail | 1999 |
| Alstans Roller Shutters Ltd | Manufacturing | 2018 |
| Altar Properties Limited | Real estate | 2018 |
| Alternatively Better Ltd | Other services | 2026 |
| Alvora Trade Ltd | Wholesale & retail | 2024 |
| AM Joinery and Construction Ltd | Construction | 2022 |
| Amagra Ltd | Information & communication | 2024 |
| Amahle Healthcare Limited | Public administration | 2023 |
| Amanda Jeffrey Interior Design Limited | Professional & scientific | 2019 |
| AMC Installations Limited | Construction | 2014 |
| Amce Ltd | Transport & logistics | 2025 |
| Amianto Services Limited | Water & waste | 2013 |
| Aminos EW Ltd | Hospitality | 2020 |
| AMO Coffee House Ltd | Hospitality | 2015 |
| AMO Trattoria Limited | Real estate | 2022 |
| AMT Property Holdings Ltd | Extraterritorial | 2023 |
| Anastasia Hair & Beauty Limited | Other services | 2023 |
| Andrew Dollaghan Coaching Ltd | Professional & scientific | 2026 |
| Angel Tavern Limited | Hospitality | 2023 |
| Angelic Aura Limited | Other services | 2018 |
| Angels and Energies Ltd | Health & social care | 2018 |
| Anna Kielczykowska Limited | Health & social care | 2019 |
| Annadale Roofing Limited | Construction | 2002 |
| Annie's Childrenswear Limited | Wholesale & retail | 2025 |
| Antcon Ltd | Construction | 2026 |
| Antons UK Limited | Wholesale & retail | 2008 |
| AOH Consultancy Ltd | Information & communication | 2022 |
| Apart Properties Ltd | Real estate | 2025 |
| APD Heating & Energy Limited | Construction | 2017 |
| Apex Asset Solutions N/W Limited | Administrative & support | 2020 |
| Apex Cleaning Solutions Limited | Other services | 2016 |
| Apex Construction Limited | Construction | 2022 |
| Apex Maintenance Ltd | Households | 2024 |
| Apex Management Solutions Ltd | Transport & logistics | 2010 |
| Apex Roofing Services Ltd | Construction | 2020 |
| Apex Transport Solutions N/W Limited | Transport & logistics | 2020 |
| Aphrodite Properties Limited | Real estate | 2016 |
| Apollo Facility Solutions Ltd | Real estate | 2025 |
| Apollo Rentals & Developments Limited | Real estate | 2022 |
| Applied Medical UK Limited | Administrative & support | 2007 |
| Appreciating People Limited | Professional & scientific | 2008 |
| Apr&Mar Construction Limited | Construction | 2025 |
| AR Safety Critical Ltd | Public administration | 2018 |
| AR7 Developments Limited | Construction | 2020 |
| Arasi Ltd | Hospitality | 2024 |
| Araz Builders Ltd | Construction | 2025 |
| Arhm Properties Limited | Real estate | 2026 |
| Ariblan Property Ltd | Real estate | 2021 |
| ARM Lifting Services Ltd | Professional & scientific | 2024 |
| Arnold & Jones Limited | Construction | 2014 |
| Aron Gheorghita Ltd | Transport & logistics | 2024 |
| Arras CUT Ltd | Other services | 2026 |
| Asanjon Ltd | Health & social care | 2023 |
| Asclepius Liverpool Limited | Real estate | 2017 |
| ASH Food & Wine Ltd | Wholesale & retail | 2015 |
| Ashcroft Commercial Developments Limited | Real estate | 2003 |
| Aspire Joinery & Building Limited | Construction | 2022 |
| Aspire Landscapes UK Limited | Administrative & support | 2018 |
| Aston Healthcare (Liverpool) Ltd | Health & social care | 2022 |
| Aston Healthcare Limited | Health & social care | 2001 |
| Asylum Fitness Ltd | Arts & recreation | 2020 |
| Atechnica IT Limited | Information & communication | 2023 |
| Atelier 2 Architecture Limited | Professional & scientific | 2011 |
| Atelier 32 Limited | Other services | 2023 |
| Athleteapex Ltd | Arts & recreation | 2024 |
| Athman PVT Ltd | Wholesale & retail | 2024 |
| Atlas Construction and Build Ltd | Construction | 2022 |
| Atlas Way Limited | Transport & logistics | 2025 |
| ATS Financial Limited | Other services | 2013 |
| Attic Studio Limited | Arts & recreation | 2010 |
| Attitude Dance Studios Ltd | Arts & recreation | 2019 |
| Attri PVT Ltd | Wholesale & retail | 2026 |
| August Property Management Limited | Real estate | 2017 |
| Autism Initiatives (UK) | Education | 1989 |
| Autism Initiatives Group | Professional & scientific | 2010 |
| Autism Ventures | Health & social care | 2010 |
| Auto ZEN Liverpool Limited | Wholesale & retail | 2022 |
| AVA and Jean Ltd | Wholesale & retail | 2025 |