| Amax Electrical Limited | Wholesale & retail | 1993 |
| Amayas Hospitality Ltd | Hospitality | 2025 |
| Amayrah Fashion Ltd | Wholesale & retail | 2023 |
| Amazing Offers Ltd | Wholesale & retail | 2020 |
| AMB London Services Ltd | Hospitality | 2024 |
| Amber School of Motoring Ltd | Education | 2026 |
| Ambient Beauty Ltd | Wholesale & retail | 2024 |
| AMC Consultancy Ltd | Professional & scientific | 2020 |
| AMD Design & Fit Limited | Construction | 2009 |
| Ameaaf Ltd | Real estate | 2020 |
| Amer Enterprises Ltd | Wholesale & retail | 2026 |
| AMG1 Estates Ltd | Real estate | 2023 |
| AMH Build Group Ltd | Construction | 2026 |
| AMI Solution Ltd | Hospitality | 2020 |
| Amicky Management Ltd | Real estate | 2025 |
| Amina Fortunes Ltd | Wholesale & retail | 2026 |
| AMIT1 Ltd | Construction | 2026 |
| AMK2 Ltd | Construction | 2025 |
| Amnor of London Ltd | Wholesale & retail | 2011 |
| Amnor Trends Ltd | Wholesale & retail | 2025 |
| Amnss Ltd | Hospitality | 2025 |
| Amos Educational Consultants Limited | Education | 2019 |
| AMR Car Hire Ltd | Administrative & support | 2025 |
| AMR Clothing Limited | Wholesale & retail | 2015 |
| Amraj Pharmavie Ltd | Health & social care | 2024 |
| Amrinder Construction Ltd | Construction | 2023 |
| Amrinder Group Limited | Construction | 2026 |
| Amrit & Sons Investments Ltd | Real estate | 2026 |
| Amrit Construction 13 Ltd | Construction | 2023 |
| Amrit Transport Ltd | Transport & logistics | 2014 |
| Amrit Virk Ltd | Transport & logistics | 2025 |
| Amritsari Fish FRY Limited | Hospitality | 2026 |
| Amseb Limited | Real estate | 1998 |
| Amsogood Consulting Ltd | Professional & scientific | 2023 |
| Amsterdam Selection Ltd | Wholesale & retail | 2021 |
| Amtar (SDN) Limited | Wholesale & retail | 2023 |
| Amtex Ltd | Information & communication | 2024 |
| AMV Electrical Services Ltd | Construction | 2023 |
| AMZ Barbers Limited | Other services | 2025 |
| AMZ FBA Trades Ltd | Hospitality | 2025 |
| AN Fashion Ltd | Wholesale & retail | 2020 |
| AN Sheng Properties Ltd | Real estate | 2018 |
| Anahad Academy Limited | Education | 2024 |
| Anahad Studio Limited | Information & communication | 2024 |
| Anand Realty Ltd | Real estate | 2020 |
| ANB Distributions Limited | Information & communication | 2010 |
| Anchor Crest Limited | Real estate | 2025 |
| Anchor UK Investments Ltd | Real estate | 2025 |
| Anchorstone Properties Management Ltd | Real estate | 2025 |
| Andaaz Asia Ltd | Wholesale & retail | 2015 |
| Andrea J Mitchell Ltd | Information & communication | 2015 |
| Andrey Constructions Limited | Construction | 2017 |
| Aneeq Estates Limited | Real estate | 2024 |
| Anemone Trading Ltd | Wholesale & retail | 2015 |
| Angad Courier Ltd | Transport & logistics | 2023 |
| Angad Properties Holdings Ltd | Real estate | 2018 |
| Angel 22 Limited | Health & social care | 2017 |
| Angel Construction Services Ltd | Construction | 2015 |
| Angel Customs Ltd | Wholesale & retail | 2020 |
| Angel Funeral Directors Ltd | Other services | 2015 |
| Angel Repatriation Services Ltd | Other services | 2022 |
| Angel Traders London Limited | Other services | 2013 |
| Angelo Dilan Limited | Professional & scientific | 2011 |
| Angels Breath SA Ltd | Hospitality | 2026 |
| Anglo 3 Limited | Administrative & support | 2009 |
| Angm Logistics Ltd | Transport & logistics | 2023 |
| Anil KUMAR1 Ltd | Construction | 2023 |
| Animz Ltd | Transport & logistics | 2026 |
| Anja Hospitality Ltd | Hospitality | 2026 |
| Anjali Investments Limited | Real estate | 2014 |
| Anjali Phone Limited | Wholesale & retail | 2021 |
| Anjco Ltd | Transport & logistics | 2024 |
| Anjuna Holdings Ltd | Real estate | 2019 |
| Anka Hair and Beauty Ltd | Other services | 2019 |
| Ankush Kumar Ltd | Construction | 2022 |
| Anmol Investments Slough Limited | Real estate | 2022 |
| Anmolharsukh Limited | Wholesale & retail | 2004 |
| Annai Limited | Health & social care | 2016 |
| Anneli Services Ltd | Information & communication | 2026 |
| Annett & Co Limited | Professional & scientific | 2013 |
| Anonymouslyzara Ltd | Professional & scientific | 2026 |
| Anowara Supermarket Ltd | Wholesale & retail | 2023 |
| ANP Analytics UK Ltd | Information & communication | 2018 |
| ANS Carpet Cleaning Limited | Administrative & support | 2017 |
| Ansa Fashion Ltd | Other services | 2016 |
| Ansh Builders Ltd | Construction | 2025 |
| Ansh Jewellery Ltd | Other services | 2020 |
| Ansh Trading Limited | Wholesale & retail | 2020 |
| Anta Investments Limited | Real estate | 2024 |
| Anthuvan Limited | Wholesale & retail | 2025 |
| Anugrah Constructions Limited | Construction | 2024 |
| Anveer Investment UK Ltd | Real estate | 2025 |
| ANY Means Necessary Ltd | Information & communication | 2025 |
| Anytime Roofing UK Ltd | Construction | 2026 |
| AP Electrical Solutions Ltd | Manufacturing | 2024 |
| AP Financial Consultancy Ltd | Professional & scientific | 2022 |
| AP Fresh Produce Ltd | Wholesale & retail | 2025 |
| AP Prime Investments Ltd | Real estate | 2023 |
| AP Prime Services Ltd | Other services | 2022 |
| AP Roofing Contractors Ltd | Construction | 2026 |