| ADC Autocare Ltd | Wholesale & retail | 2017 |
| Adjutant Software Ltd | Information & communication | 2018 |
| Adoree Limited | Wholesale & retail | 2023 |
| Adventurous Horizons Ltd | Arts & recreation | 2016 |
| Advocate INK Ltd | Administrative & support | 2025 |
| ADZ Holdings Limited | Financial services | 2021 |
| Affinity Engineering Services Limited | Professional & scientific | 2026 |
| Affordable Conveyancing Solutions Limited | Professional & scientific | 2020 |
| AFS UK Scaffolding Supplies Ltd | Wholesale & retail | 2025 |
| After Dark Buzzz Ltd | Wholesale & retail | 2023 |
| AGC Projects (North West) Limited | Professional & scientific | 2015 |
| AGT Service Ltd | Information & communication | 2006 |
| Ahmed Bros (Hyde) Ltd | Administrative & support | 2017 |
| Ahmed Management Limited | Administrative & support | 2023 |
| Ahmed Prime Estates Ltd | Real estate | 2026 |
| AJ Fleet and Co Limited | Professional & scientific | 2014 |
| AJ Motion Graphics Ltd | Information & communication | 2020 |
| AJ Truckstop Ltd | Transport & logistics | 2023 |
| Ajem Property Limited | Real estate | 2020 |
| AJR PH Ltd | Real estate | 2024 |
| AJW Electrical Services NW Ltd. | Construction | 2012 |
| AK Chorlton Properties LLP | | 2013 |
| AKA Building Ltd | Manufacturing | 2021 |
| AKR Builders Limited | Construction | 2025 |
| AL Quba Education Trust | Education | 2017 |
| Al-Amin Foodstore Ltd | Wholesale & retail | 2020 |
| ALA Consultancy Limited | Professional & scientific | 2025 |
| ALA Lancashire Holdings Limited | Real estate | 2025 |
| Alagbala Limited | Information & communication | 2018 |
| Alams&Co Ltd | Wholesale & retail | 2025 |
| ALB Financial Accounting Ltd | Professional & scientific | 2024 |
| Albert Street Builders and Joiners Ltd | Construction | 2013 |
| Alderley Edge Developments Ltd | Construction | 2014 |
| Alex Macleod Films Ltd | Information & communication | 2017 |
| Alexdragne Ltd | Wholesale & retail | 2020 |
| ALH Living Ltd | Real estate | 2024 |
| Alice Francis James Ltd | Real estate | 2020 |
| All-Round Home Services Ltd | Construction | 2024 |
| Allegiant Centre of Performing Arts Limited | Arts & recreation | 2024 |
| Allendor Products Limited | Real estate | 1967 |
| Alliagbor Limited | Health & social care | 2020 |
| Allotts Limited | Transport & logistics | 2002 |
| Alloywheels Manchester Limited | Wholesale & retail | 2014 |
| Allskymall Limited | Wholesale & retail | 2024 |
| Allsorts Beds Limited | Wholesale & retail | 2022 |
| Allsorts Furniture Ltd | Wholesale & retail | 2017 |
| Almirah Consults Ltd | Information & communication | 2021 |
| Almirah Limited | Wholesale & retail | 2016 |
| Aloumino Limited | Wholesale & retail | 2010 |
| Alpha Businesses Ltd | Construction | 2020 |
| Alpha Experts Ltd | Professional & scientific | 2024 |
| Alpha Homes MCR Ltd | Real estate | 2025 |
| Alpha Jewels Ltd | Wholesale & retail | 2026 |
| Alpha POD Solutions Ltd | Wholesale & retail | 2025 |
| Alpha Vehicle Assessors Limited | Other services | 2017 |
| Alpo Cleaning Solutions Ltd | Administrative & support | 2021 |
| ALS Engineering Services Ltd | Wholesale & retail | 2023 |
| Alston Buildworks Limited | Manufacturing | 2025 |
| Altitude Professionals Ltd | Manufacturing | 2023 |
| Alturos Group Limited | Financial services | 2025 |
| AM Accountancy Solutions Limited | Professional & scientific | 2023 |
| AM Estates 2 Ltd | Real estate | 2021 |
| AM Services Group Ltd | Professional & scientific | 2026 |
| Amadi Home Ltd | Wholesale & retail | 2023 |
| Amblerange Ltd | Administrative & support | 2006 |
| Ambrose Park PUB Company Limited | Professional & scientific | 2026 |
| Ambulare Services Ltd | Professional & scientific | 2017 |
| AMD Properties Northwest Limited | Real estate | 2020 |
| Amdec Forklifts Limited | Professional & scientific | 2004 |
| Amelia Olivia Ltd | Wholesale & retail | 2022 |
| AMH Accounts Ltd | Extraterritorial | 2012 |
| AMH Audit Limited | Professional & scientific | 2025 |
| Amin Investment Management Ltd | Real estate | 2022 |
| Ammco Developments Ltd | Real estate | 2022 |
| Amphorea Direct Limited | Wholesale & retail | 2019 |
| Amphorea Packaging Ltd. | Wholesale & retail | 1999 |
| Ample Harvest Limited | Real estate | 2023 |
| Ampulla Limited | Wholesale & retail | 2006 |
| Anaerobic Supplies Ltd | Transport & logistics | 2017 |
| Anderson Consultancy Training Limited | Professional & scientific | 2013 |
| Anew Approach Community Interest Company | Public administration | 2015 |
| Angry Lynx Productions Ltd | Information & communication | 2026 |
| ANT Property Concepts Limited | Construction | 2020 |
| Antalya Shawarma MCR Limited | Hospitality | 2026 |
| Anvil Masters Limited | Manufacturing | 2014 |
| ANY Van Rental Ltd | Administrative & support | 2020 |
| Anyfunding Ltd | Financial services | 2011 |
| Anzor Media Ltd | Information & communication | 2025 |
| Apacc Properties Limited | Real estate | 2024 |
| Apache Signs Limited | Construction | 2024 |
| Apex Contract Solutions Ltd | Manufacturing | 2025 |
| Apex Masonry & Construction Ltd | Construction | 2025 |
| Apparel Corner UK Ltd | Wholesale & retail | 2024 |
| Appropriate Software Foundation | Information & communication | 2003 |
| Aptrex Limited | Professional & scientific | 2025 |
| Apww Limited | Information & communication | 2010 |
| Aquatech Technologies Limited | Manufacturing | 2011 |
| Ar-Sial Limited | Wholesale & retail | 2026 |
| Arbon Homes Ltd | Real estate | 2020 |
| Arbortech NW Ltd | Administrative & support | 2019 |