| AM Digital Limited | Manufacturing | 2005 |
| AM to PM (Golborne) Limited | Wholesale & retail | 2003 |
| AM to PM Stores (Gidlow) Ltd | Real estate | 2005 |
| Amalfi Electrical Solutions Limited | Construction | 2006 |
| Amalgamated Roofing and Property Services Ltd | Construction | 2025 |
| Amalia Consulting Ltd | Professional & scientific | 2026 |
| Amanda Coleman Communications Limited | Administrative & support | 2020 |
| Amanda Jayne Enterprises Ltd | Wholesale & retail | 2019 |
| Amanolis | Professional & scientific | 2026 |
| Amarà Care Services Limited | Health & social care | 2020 |
| Amazon Fish Supplies Ltd | Wholesale & retail | 2025 |
| Amazza Limited | Financial services | 2024 |
| AMB Autos Ltd | Wholesale & retail | 2025 |
| Ambeeth Limited | Administrative & support | 2023 |
| Ambel Crafts Ltd | Wholesale & retail | 2022 |
| Amber Express Logistics Limited | Transport & logistics | 2010 |
| Amber Sollzce Ltd | Wholesale & retail | 2018 |
| Ambernation Ltd | Professional & scientific | 2024 |
| Ambicool (Wigan) Limited | Professional & scientific | 2000 |
| Ambroci Limited | Construction | 2024 |
| Ambrose Financial Consultancy Limited | Professional & scientific | 2022 |
| AMC Offshore Services Ltd | Professional & scientific | 2013 |
| AMD Racing Limited | Wholesale & retail | 2023 |
| Amelonia | Professional & scientific | 2023 |
| American Candy Wigan Ltd | Wholesale & retail | 2025 |
| American Fizzy Ltd | Wholesale & retail | 2026 |
| Amertamia | Professional & scientific | 2025 |
| Amfd Building Services Limited | Construction | 2025 |
| Amicitude | Professional & scientific | 2025 |
| Amigos Fast Food Ltd | Hospitality | 2025 |
| Amilero | Professional & scientific | 2026 |
| Aminda Ltd. | Manufacturing | 2025 |
| Amira Restaurant Wigan Limited | Hospitality | 2025 |
| Amiralix | Professional & scientific | 2026 |
| AML Financial Services Ltd | Financial services | 2018 |
| Ammm Services Ltd | Wholesale & retail | 2022 |
| Amni Transportation Ltd | Professional & scientific | 2017 |
| Ampios Management Partners Limited | Information & communication | 2003 |
| Amplexus Ltd | Health & social care | 2025 |
| AMR1T Limited | Extraterritorial | 2010 |
| Amrose Engineering Ltd | Professional & scientific | 2024 |
| Amrutha & Partners Ltd | Information & communication | 2019 |
| Amspec Limited | Construction | 2002 |
| Amta Homes Ltd | Real estate | 2025 |
| Amta Social Care Consultancy Ltd | Health & social care | 2026 |
| Amurantis Ltd | Professional & scientific | 2026 |
| Amuras Ltd | Transport & logistics | 2020 |
| Amvee Design Ltd | Professional & scientific | 2023 |
| AMW Optics Ltd | Health & social care | 2012 |
| AMW Supply Chain Ltd | Professional & scientific | 2024 |
| AN Educational Limited | Education | 2023 |
| Ananmar Limited | Real estate | 2010 |
| Ananta Group Limited | Wholesale & retail | 2022 |
| Anapos Ltd | Manufacturing | 2017 |
| Anatolia BBQ Limited | Hospitality | 2024 |
| Anatolia BBQ Wigan Limited | Hospitality | 2025 |
| Anawilk Interiors Limited | Professional & scientific | 2023 |
| Ancer Investments Limited | Real estate | 2003 |
| Anceros | Professional & scientific | 2025 |
| Anchor Care and Support Services Ltd | Administrative & support | 2026 |
| Anchorpoint Portfolios Ltd | Wholesale & retail | 2025 |
| Ancient and Loyal Limited | Other services | 2020 |
| AND Frame Ltd | Manufacturing | 2024 |
| Anders Plumbing & Heating Limited | Construction | 2005 |
| Andonna Ltd | Wholesale & retail | 2020 |
| Andoriax | Professional & scientific | 2026 |
| Andrea Bellamy Consultancy Limited | Professional & scientific | 2021 |
| Andrew Goulding Limited | Arts & recreation | 2021 |
| Andrew James Properties Limited | Real estate | 2020 |
| Andrew P Wilson - Contracts and Commercial Ltd | Professional & scientific | 2018 |
| Andrew Woods Groundworks Limited | Construction | 2003 |
| Andrew Wright Construction Consultancy Ltd | Professional & scientific | 2017 |
| Andrzej Sibik Ltd | Transport & logistics | 2018 |
| Andy Harrison Photography Ltd | Professional & scientific | 2022 |
| Angel Properties (North West) Limited | Real estate | 2004 |
| Angel Property North West Ltd | Real estate | 2025 |
| Angela Kyte Ltd | Hospitality | 2020 |
| Angela White Financial Services Ltd | Financial services | 2022 |
| Angelic Events Ltd | Administrative & support | 2026 |
| Angelov Transport Ltd | Transport & logistics | 2026 |
| Anglezarke Holdings Limited | Financial services | 2021 |
| Anglezarke Property Consultants Limited | Professional & scientific | 2017 |
| Animation World Limited | Information & communication | 2025 |
| Animus Services (North West) Limited | Health & social care | 2012 |
| Ankam Ltd | Health & social care | 2025 |
| ANM Bathrooms Ltd | Construction | 2025 |
| Annabelle & Co UK Ltd | Wholesale & retail | 2025 |
| Anne Bradshaw Limited | Administrative & support | 2010 |
| Anne Hawkridge Limited | Other services | 2020 |
| Annesse Care Ltd | Health & social care | 2025 |
| Annesse Consulting Ltd | Information & communication | 2022 |
| Annie Love Nature Ltd | Manufacturing | 2014 |
| Anredos | Professional & scientific | 2026 |
| Anson Medical Ltd | Wholesale & retail | 2020 |
| ANT J Oldham Garden Services Ltd | Administrative & support | 2022 |
| Anta Accounting Services Ltd | Professional & scientific | 2017 |
| Antalya Barber Ince Ltd | Other services | 2023 |
| Anthony Grimshaw Associates LLP | | 2015 |
| Anthony William Furniture Ltd | Other services | 2017 |
| Antico Forno Ltd | Hospitality | 2023 |