| Ainsworth Road Holding Limited | Financial services | 2017 |
| Ainsworth Road Limited | Administrative & support | 2017 |
| Air Property Holdings Limited | Real estate | 2024 |
| Air Testing UK Ltd | Professional & scientific | 2006 |
| Aircons Limited | Wholesale & retail | 2024 |
| Airmatic Compressors Ltd | Manufacturing | 2013 |
| Airmatic Holdings Ltd | Manufacturing | 2018 |
| Airmatic Ltd | Manufacturing | 1998 |
| Airmatic Properties Ltd | Real estate | 2013 |
| Airport Baggage Integration Limited | Professional & scientific | 2011 |
| Aisysuk Ltd | Information & communication | 2026 |
| Aitken Beauty Ltd | Administrative & support | 2016 |
| Aitken Commercial Development Limited | Professional & scientific | 2010 |
| Aizal GBR Ltd | Professional & scientific | 2023 |
| AJ Fortis Ltd | Real estate | 2024 |
| AJ Investments Manchester Ltd | Real estate | 2024 |
| AJ Mobile Xone Ltd | Other services | 2026 |
| AJ Mobile Zone Limited | Wholesale & retail | 2016 |
| Ajak Properties Ltd | Real estate | 2025 |
| AJB Building Solutions Ltd | Construction | 2019 |
| AJB Sales Training Ltd | Administrative & support | 2020 |
| AJD Sweet Store Limited | Wholesale & retail | 2023 |
| AJF Express Limited | Transport & logistics | 2011 |
| AJG Home Renovations Ltd | Construction | 2019 |
| AJM Developments NW Ltd | Construction | 2023 |
| AJM Installations Ltd | Construction | 2025 |
| AJM Podiatry Limited | Health & social care | 2015 |
| AJO Accounting Solutions Limited | Professional & scientific | 2007 |
| AJO Solutions Limited | Professional & scientific | 2018 |
| AJP Corporate Accountants Limited | Professional & scientific | 2000 |
| AJW Electrical Contracting Limited | Construction | 2010 |
| AJW Plumbing and Engineering Ltd | Construction | 2019 |
| AK & HA Food Traders T/A First Choice Ltd | Wholesale & retail | 2017 |
| Akbar Optical Ltd | Health & social care | 2023 |
| AKC Property Management Ltd | Financial services | 2022 |
| AKC Services Limited | Real estate | 2025 |
| AKM Global Freight Limited | Transport & logistics | 2022 |
| Akram Forecourt Limited | Hospitality | 2023 |
| AKS Supplies Limited | Wholesale & retail | 2022 |
| AKS Trend Limited | Wholesale & retail | 2025 |
| Aksa Khan Ltd | Professional & scientific | 2022 |
| AL Hadi Limited | Hospitality | 2018 |
| AL Hamza Traders UK Ltd | Wholesale & retail | 2022 |
| AL Rada Travels Limited | Administrative & support | 2013 |
| Al-Qalam Foundation | Health & social care | 2016 |
| Al-Waqiah Limited | Hospitality | 2015 |
| Alaahub Ltd | Wholesale & retail | 2025 |
| Alan Davies (Stainless) Limited | Manufacturing | 1985 |
| Alan Green PHD Limited | Real estate | 2014 |
| Alan Quine (Parr Lane) Limited | Wholesale & retail | 2005 |
| Alaynaiza Limited | Real estate | 2025 |
| ALB Developments Ltd | Construction | 2019 |
| ALB Land and Aquisition Ltd | Real estate | 2019 |
| ALB Properties Ltd | Real estate | 2018 |
| ALB Renovation Ltd | Construction | 2020 |
| Alba Plumbing Services Limited | Construction | 2005 |
| Albany Engineered Composites, Ltd | Manufacturing | 2017 |
| ALC Contractors Ltd | Wholesale & retail | 2026 |
| Alchemie Europe Limited | Wholesale & retail | 1995 |
| Alchemie Overseas Limited | Wholesale & retail | 2003 |
| Aldcroft Welding Services Limited | Professional & scientific | 2012 |
| Alden Estates Ltd | Real estate | 2020 |
| Alderley Money Ltd | Financial services | 2020 |
| Aldred Consultancy Limited | Professional & scientific | 2014 |
| Alessa Jewellery Limited | Wholesale & retail | 2026 |
| Alex Barbacorta Media Limited | Professional & scientific | 2024 |
| Alexs Bau-Service Ltd | Professional & scientific | 2018 |
| Alfateh Import and Export Ltd | Wholesale & retail | 2025 |
| Alfidi Consulting Ltd | Information & communication | 2015 |
| Alfie Round Limited | Administrative & support | 2025 |
| Alfiedean Property Management Limited | Real estate | 2024 |
| Alfies Supplies Ltd | Wholesale & retail | 2023 |
| ALI Bukhari Fresh Limited | Hospitality | 2024 |
| ALI Taxi Connection Hire Ltd | Transport & logistics | 2019 |
| Ali's Delish Ltd | Manufacturing | 2021 |
| Ali's Takeaway Ltd | Hospitality | 2017 |
| Alice ADA Bridal Limited | Wholesale & retail | 2018 |
| Alimarc Limited | Professional & scientific | 2017 |
| Alina Courier Ltd | Transport & logistics | 2019 |
| Alina MIR Ltd | Administrative & support | 2023 |
| Aline Services Limited | Transport & logistics | 1988 |
| Aline Vehicle Delivery Limited | Financial services | 2021 |
| Alister Grant Auctions Limited | Administrative & support | 2023 |
| Alister Grant Limited | Administrative & support | 2019 |
| Alive Media Limited | Information & communication | 2008 |
| Alizatrading Limited | Hospitality | 2024 |
| Alkalife Ltd | Manufacturing | 2023 |
| ALL Doors UK Limited | Manufacturing | 2009 |
| ALL Ears Audio Ltd | Information & communication | 2011 |
| ALL Energy Services NW Ltd | Professional & scientific | 2026 |
| ALL Marketing Solutions Ltd | Professional & scientific | 2024 |
| ALL One Ltd | Wholesale & retail | 2025 |
| ALL Saints (Orrell Street) RTM Company Limited | Households | 2018 |
| ALL Saints RTM Company Ltd | Households | 2018 |
| ALL Star Detailing Ltd | Wholesale & retail | 2025 |
| ALL Trades Group (NW) Ltd | Construction | 2019 |
| ALL Transport Solutions Limited | Administrative & support | 2016 |
| ALL White Linens Ltd | Administrative & support | 2012 |
| ALL4TEC Industrial Services Limited | Manufacturing | 2025 |
| Allbar Fittings and Fabrications Ltd | Manufacturing | 2020 |