| Ammonite Geoservices Ltd | Professional & scientific | 2026 |
| Ammori Ltd | Health & social care | 2024 |
| Ammys Limited | Wholesale & retail | 2020 |
| AMN Global Ltd | Wholesale & retail | 2025 |
| Amna Ashraf Ltd | Wholesale & retail | 2025 |
| Amna Medical Limited | Health & social care | 2018 |
| Amnabeautystudio Ltd | Other services | 2022 |
| Amnaoptical Limited | Health & social care | 2024 |
| Amnesia Blonde Limited | Information & communication | 2002 |
| Amnis Education Ltd. | Administrative & support | 2014 |
| Amnk Holdings Limited | Real estate | 2024 |
| Amnm Ltd | Health & social care | 2026 |
| AMO Pharm Ltd | Wholesale & retail | 2023 |
| AMO Properties Ltd | Real estate | 2018 |
| Amol (NW) Ltd | Hospitality | 2024 |
| Amor Capital Ltd | Real estate | 2023 |
| Amor Homes Delamere Ltd | Construction | 2023 |
| Amor Homes Ltd | Construction | 2018 |
| Amor Limited | Hospitality | 2025 |
| Amor Trinitatis Ltd | Health & social care | 2026 |
| Amore Abayas Ltd | Wholesale & retail | 2025 |
| Amore Active Ltd | Wholesale & retail | 2024 |
| Amore DA Venus Limited | Wholesale & retail | 2026 |
| Amore Dati Ltd | Wholesale & retail | 2021 |
| Amore Estates Limited | Real estate | 2013 |
| Amore Urban Suburban Ltd | Wholesale & retail | 2021 |
| Amorella Ltd | Wholesale & retail | 2025 |
| Amorewellnessmcr CIC | Arts & recreation | 2025 |
| Amoria Bond Limited | Administrative & support | 2006 |
| Amorpha Limited | Wholesale & retail | 2025 |
| Amorphis Labs Ltd. | Information & communication | 2026 |
| Amorphous Projects Ltd | Administrative & support | 2004 |
| Amoré Home Care Limited | Health & social care | 2018 |
| Amos & Franck Property Ltd | Hospitality | 2026 |
| Amos Marketing Limited | Professional & scientific | 2016 |
| Amosiah Ltd | Construction | 2025 |
| Amosstransport Ltd | Transport & logistics | 2025 |
| Amotys Ltd | Construction | 2023 |
| Amour Aesthetics Ltd | Other services | 2025 |
| Amour Beauty MCR Ltd | Wholesale & retail | 2025 |
| Amour Envie Limited | Wholesale & retail | 2016 |
| Amour Hospitality Ltd | Hospitality | 2025 |
| Amour Records Ltd | Information & communication | 2024 |
| Amovita Group Ltd | Wholesale & retail | 2024 |
| Amoxdigi Ltd | Wholesale & retail | 2024 |
| AMP Bookkeeping Services Limited | Professional & scientific | 2025 |
| AMP House Limited | Health & social care | 2022 |
| AMP Physiotherapy Ltd | Health & social care | 2021 |
| AMP Realty Group Limited | Real estate | 2024 |
| Ampah Electrical Limited | Construction | 2016 |
| Ampatel Healthcare Limited | Health & social care | 2013 |
| Ampd Holdings Ltd | Arts & recreation | 2025 |
| Amped UP Energy Limited | Professional & scientific | 2025 |
| Amper&And Ltd | Professional & scientific | 2026 |
| Ampersand-Us Ltd | Information & communication | 2017 |
| Ampgreen Estates Limited | Agriculture & fishing | 2021 |
| Amphora Properties Ltd | Real estate | 2024 |
| Ampih Ltd | Wholesale & retail | 2025 |
| Ampira Energy Limited | Professional & scientific | 2024 |
| Ampire Properties Ltd | Real estate | 2023 |
| Ampire Vehicle Installations Ltd | Wholesale & retail | 2018 |
| Ample Living Ltd | Real estate | 2024 |
| Ample Properties & Management UK Ltd | Real estate | 2022 |
| Amplexa Care Limited | Wholesale & retail | 2026 |
| Amplified Athlete Ltd | Arts & recreation | 2022 |
| Amplified Voices CIC | Education | 2022 |
| Amplifon Finance UK Limited | Administrative & support | 1967 |
| Amplifon Limited | Health & social care | 1977 |
| Amplifon United Kingdom Limited | Professional & scientific | 2006 |
| Amplify Design & Build Ltd | Construction | 2024 |
| Amplify Haus Ltd | Information & communication | 2025 |
| Amplify Learning Ltd. | Education | 2017 |
| Amplify Tech Ltd | Wholesale & retail | 2026 |
| Amplifyuk Reach Limited | Real estate | 2015 |
| Ampliix Limited | Wholesale & retail | 2026 |
| Amplio Build Ltd | Real estate | 2023 |
| Amplio Properties Ltd | Real estate | 2025 |
| Amponsah Consultancy Ltd | Health & social care | 2019 |
| Amps Estates Ltd | Real estate | 2024 |
| Ampsol Ltd | Health & social care | 2021 |
| AMR Magdy Shafik and HIS Partners Ltd | Manufacturing | 2026 |
| AMR Mahrous Medical & Education Limited | Education | 2025 |
| AMR Properties Manchester Limited | Real estate | 2025 |
| Amrapali UK Ltd | Administrative & support | 2002 |
| Amras Holdings Ltd | Financial services | 2024 |
| Amras Properties Ltd | Real estate | 2025 |
| Amrezo Limited | Other services | 2025 |
| Amriq Trade Limited | Real estate | 2024 |
| Amro Adel Awad Moussa Ltd | Wholesale & retail | 2026 |
| Amro Construction Limited | Manufacturing | 2017 |
| Amro Takeaway Ltd | Hospitality | 2026 |
| Amroc Ltd | Construction | 2022 |
| Amron HR Ltd | Administrative & support | 2023 |
| Amrpj Limited | Information & communication | 2021 |
| AMS (Emea) Limited | Professional & scientific | 2019 |
| AMS Accountants Group Ltd | Financial services | 2019 |
| AMS Accountants Limited | Professional & scientific | 2024 |
| AMS Accountants Nominees Ltd | Professional & scientific | 2017 |
| AMS Accounting Medical Limited | Professional & scientific | 2014 |
| AMS Accounting Midco Limited | Financial services | 2024 |