| AM1 Builds Ltd | Construction | 2023 |
| AMA Corp Limited | Wholesale & retail | 2023 |
| AMA Distribution Limited | Professional & scientific | 2014 |
| AMA Food Services Ltd | Hospitality | 2020 |
| AMA Investments London Limited | Real estate | 2026 |
| AMA Plastering Ltd | Construction | 2021 |
| Amaanah Capital Group Ltd | Financial services | 2026 |
| Amaar Limited | Wholesale & retail | 2020 |
| Amaari Ltd | Professional & scientific | 2020 |
| Amaco Property Investments Ltd | Real estate | 2022 |
| Amadeus Financial Services Ltd | Financial services | 2021 |
| Amadeus Legal Services Limited | Professional & scientific | 2016 |
| Amaeus Properties Ltd | Real estate | 2017 |
| Amafhh IT Consultancy Limited | Information & communication | 2019 |
| Amagacho Tech Solutions Ltd | Information & communication | 2026 |
| Amaik Projects Ltd | Other services | 2025 |
| Amajid Enterprises Ltd | Transport & logistics | 2025 |
| Amakan Ltd | Construction | 2020 |
| Amal Holdings and Investments Limited | Financial services | 2025 |
| Amal Properties Ltd | Real estate | 2020 |
| Amalia Cleaning Services Ltd | Construction | 2022 |
| Amalytics Software Ltd | Information & communication | 2018 |
| Amami Diamonds Ltd | Wholesale & retail | 2024 |
| Amamsa Management Services Limited | Professional & scientific | 2010 |
| Aman Building Services Limited | Construction | 2015 |
| Aman Empire Ltd | Wholesale & retail | 2023 |
| Aman Recovery Ltd | Administrative & support | 2022 |
| Aman Traders International Ltd | Wholesale & retail | 2026 |
| Amanat IMK Ltd | Real estate | 2021 |
| Amanat Property Ltd | Real estate | 2021 |
| Amanda Solutions Limited | Wholesale & retail | 2017 |
| Amander Investments Limited | Professional & scientific | 2013 |
| Amani Education Ltd | Professional & scientific | 2022 |
| Amanj Services Limited | Professional & scientific | 2012 |
| Amar Bakery Limited | Hospitality | 2024 |
| Amar Food Service Limited | Hospitality | 2022 |
| Amar Globally Ltd | Wholesale & retail | 2026 |
| Amar Mani Estates Ltd | Real estate | 2021 |
| Amara Developments Limited | Real estate | 2019 |
| Amara Legal Services Limited | Professional & scientific | 2023 |
| Amara Real Estates Ltd | Real estate | 2023 |
| Amarc Construction Ltd | Construction | 1995 |
| Amarinder Properties Limited | Real estate | 2023 |
| Amarox Limited | Manufacturing | 2017 |
| Amaser Services Ltd | Construction | 2020 |
| Amavi Building Services Ltd | Construction | 2024 |
| Amax Consultants Ltd | Construction | 2022 |
| Amax Consulting Ltd | Construction | 2022 |
| Amax Digital Marketing Ltd | Information & communication | 2022 |
| Amax Express UK Ltd | Wholesale & retail | 2020 |
| Amax Holdings London Ltd | Financial services | 2021 |
| Amax Projects (Fire and Security) Ltd | Administrative & support | 2010 |
| Amax Security Limited | Administrative & support | 2012 |
| Amax Supplies Ltd | Other services | 2013 |
| Amaze Systems Ltd | Professional & scientific | 2022 |
| AMAZEZ0NBUSINESSCO Ltd | Wholesale & retail | 2023 |
| Amazilia London Ltd | Manufacturing | 2020 |
| Amazing Looks Barber Shop Ltd | Other services | 2026 |
| Amazzi Swim Limited | Wholesale & retail | 2023 |
| AMB Data Solutions Limited | Information & communication | 2012 |
| AMB Transport Ltd | Transport & logistics | 2022 |
| Amba Blow DRY Ltd | Other services | 2015 |
| Amba Investments LLP | | 2008 |
| Ambassador Bakery Limited | Manufacturing | 2012 |
| Ambassador House RTM Company Limited | Households | 2020 |
| Ambassador IT Consultants Limited | Information & communication | 2008 |
| Ambassador Property London Ltd | Real estate | 2025 |
| Ambassador Solutions Limited | Information & communication | 2007 |
| Amber Amba Group Limited | Other services | 2026 |
| Amber Core Ltd | Construction | 2026 |
| Amber Enterprises (London) Limited | Wholesale & retail | 2004 |
| Amber Group Limited | Construction | 2004 |
| Amber Haven Limited | Real estate | 2017 |
| Amber Light Ltd | Information & communication | 2017 |
| Amber Lounge Limited | Hospitality | 2019 |
| Amber Trading Limited | Wholesale & retail | 2020 |
| Amber.Gallery Ltd | Wholesale & retail | 2015 |
| Amberton Property Ltd | Real estate | 2024 |
| Ambiance London Limited | Other services | 2021 |
| Ambiance Property Ltd | Real estate | 2022 |
| Ambican (UK) Ltd | Wholesale & retail | 2006 |
| Ambience Properties Development Ltd | Real estate | 2022 |
| Ambient Real Estate Limited | Real estate | 2025 |
| Ambientscape Community Interest Company | Manufacturing | 2022 |
| Ambitious Projects Limited | Information & communication | 2025 |
| Ambitone Studios Limited | Administrative & support | 2021 |
| Ambrose of London Ltd | Manufacturing | 2018 |
| Amby Ltd | Transport & logistics | 2022 |
| AMC Building Limited | Construction | 2006 |
| AMC Plastering and Decorating Ltd | Construction | 2020 |
| AMC Trading Ltd | Professional & scientific | 2020 |
| Amco Accountancy Services Ltd | Professional & scientific | 2016 |
| Amco Marketing UK Ltd | Wholesale & retail | 2021 |
| Amcs Tile&Render Limited | Construction | 2026 |
| AMD Builders Limited | Construction | 2012 |
| Amdavadi Food Limited | Manufacturing | 2025 |
| AME Consultants UK Limited | Professional & scientific | 2009 |
| AME Group Services Ltd | Professional & scientific | 2021 |
| Amee Houseware Ltd | Wholesale & retail | 2024 |
| Ameg International Limited | Wholesale & retail | 2005 |