| Andrei Ursaru Ltd | Wholesale & retail | 2025 |
| Andrew Kirsten Ltd | Information & communication | 2014 |
| Andrew Parr Financial Services Limited | Financial services | 2003 |
| Andrew Phillip Royle Ltd | Professional & scientific | 2011 |
| Andrew Winstanley Transport Ltd | Transport & logistics | 2011 |
| Andrew Winter Ltd | Health & social care | 2019 |
| Andrew Wood Construction (Saddleworth) Limited | Construction | 2010 |
| Andy Hands Ltd | Construction | 2016 |
| Andys Autoparts Limited | Extraterritorial | 2016 |
| Andyyatespt Limited | Arts & recreation | 2024 |
| Aneelas Boutique Ltd | Wholesale & retail | 2026 |
| Anew AP Ltd | Education | 2026 |
| Anexx Properties Ltd | Real estate | 2025 |
| Angel Dragons Limited | Real estate | 2016 |
| Angel F.P Limited | Public administration | 2012 |
| Angel Fire Services Limited | Public administration | 2023 |
| Angela Fretwell Ltd | Other services | 2020 |
| Angela Harrison Mortgage Services Limited | Financial services | 2021 |
| Angela Moores Limited | Professional & scientific | 2018 |
| Angelaak Healthcare Ltd | Health & social care | 2018 |
| Angies Taste of Jamaica Limited | Hospitality | 2024 |
| Anglesey Welcome Limited | Hospitality | 2018 |
| Anglo West Indian Social Club CIC | Arts & recreation | 2019 |
| Anglo-Med International Limited | Hospitality | 2005 |
| ANH Plant Services Limited | Administrative & support | 2014 |
| Ania Property Ltd | Real estate | 2023 |
| Anika Indian Takeaway Limited | Hospitality | 2019 |
| Anilox Supplies Limited | Manufacturing | 2004 |
| Aniq Attire Ltd | Wholesale & retail | 2023 |
| Anisa Optom Ltd | Wholesale & retail | 2023 |
| Anisah Mackmood Ltd | Administrative & support | 2016 |
| Aniya-Maria Ltd | Transport & logistics | 2021 |
| Anmat Technology Limited | Professional & scientific | 1995 |
| Anna Insulations Limited | Construction | 2024 |
| Anna Nails Bar Ltd | Other services | 2025 |
| Anna Nuttall Conveyancing Services Ltd | Professional & scientific | 2021 |
| Annegelic Bliss Ltd | Other services | 2012 |
| Annett Architecture & Engineering Ltd | Construction | 2014 |
| Annya Homes Limited | Real estate | 2024 |
| Anoop Care Ltd | Health & social care | 2021 |
| Another Level Car Parks Limited | Administrative & support | 2003 |
| Another Life Saved BIN the Blades CIC | Education | 2025 |
| Another ML NW Ltd | Other services | 2026 |
| Another Studio Pilates Ltd | Arts & recreation | 2026 |
| ANP Community Services Limited | Health & social care | 2018 |
| ANS Building North West Limited | Construction | 2023 |
| Ansa Elevators AB Ltd | Financial services | 2022 |
| Ansal Central Ltd. | Wholesale & retail | 2016 |
| Anshnoor Seerat Homes Ltd | Real estate | 2025 |
| Anshnoor Seerat Limited | Real estate | 2019 |
| Ansi Investments Limited | Real estate | 2021 |
| Ansop Limited | Real estate | 2022 |
| Ansorren Ltd | Information & communication | 2021 |
| ANT ASH Roofing Ltd | Construction | 2020 |
| Antalya Barber Shop (Royton) Ltd | Other services | 2018 |
| Antims Limited | Hospitality | 2025 |
| Antonio's 1 Ltd | Hospitality | 2010 |
| Antony George Recruitment Limited | Administrative & support | 2016 |
| Anuri Ltd | Hospitality | 2025 |
| Anusa Cosmetics Ltd | Wholesale & retail | 2025 |
| Anvico Limited | Administrative & support | 2024 |
| Anvil Logistics Ltd | Transport & logistics | 2022 |
| Anvill Solutions Ltd | Construction | 2021 |
| ANW Travels & Consultancy Ltd | Administrative & support | 2023 |
| Anwar Locum Services Ltd | Health & social care | 2019 |
| Anya Jewellery Ltd | Wholesale & retail | 2024 |
| Anyap Services UK Limited | Health & social care | 2018 |
| ANZ Food Ltd | Water & waste | 2020 |
| ANZ Property Partners Ltd | Construction | 2025 |
| AO Applications Limited | Information & communication | 2016 |
| AP Housing Group Limited | Real estate | 2024 |
| AP Labour Limited | Administrative & support | 2026 |
| AP Lettings Limited | Real estate | 2017 |
| AP Solutions North West Ltd | Construction | 2015 |
| Apache Renewable Energy Solutions Ltd | Construction | 2024 |
| APB Aviation Maintenance Ltd | Manufacturing | 2025 |
| APC Property Holdings Limited | Real estate | 2026 |
| APE Amusement Design Ltd | Manufacturing | 2016 |
| Apex Access and Inspection Ltd | Construction | 2026 |
| Apex Asset Partners Ltd | Real estate | 2026 |
| Apex Brands Limited | Wholesale & retail | 2024 |
| Apex Digital Commerce Ltd | Wholesale & retail | 2026 |
| Apex Engine Group Ltd | Wholesale & retail | 2026 |
| Apex Estates 786 Ltd | Construction | 2025 |
| Apex Group MCR Ltd | Wholesale & retail | 2021 |
| Apex Installation Services Ltd | Construction | 2025 |
| Apex Pharm Ltd | Health & social care | 2012 |
| Apex Properties Group Ltd | Real estate | 2024 |
| Apex Property & Land Investments Ltd | Real estate | 2020 |
| Apex Range Ltd | Wholesale & retail | 2023 |
| Apex Strategic Consulting Limited | Public administration | 2024 |
| Apex Transfers Ltd | Transport & logistics | 2025 |
| Apex Transport MCR Ltd | Transport & logistics | 2026 |
| Apex Well-Being Ltd | Wholesale & retail | 2023 |
| Apexica Partners Ltd | Financial services | 2024 |
| Apexsell Ltd | Wholesale & retail | 2026 |
| APG Plumbing & Heating Ltd | Construction | 2013 |
| API International Ltd | Manufacturing | 2016 |
| Aplace Consulting Limited | Professional & scientific | 2021 |
| APLACE2BELONG CIC | Hospitality | 2025 |