| Anaaya Properties Ltd | Real estate | 2022 |
| Anahady Property Investment Limited | Construction | 2024 |
| Anansi Media Ltd | Information & communication | 2020 |
| Anant Properties Limited | Real estate | 2024 |
| Anara London Ltd | Wholesale & retail | 2021 |
| Anav Global Limited | Professional & scientific | 2022 |
| Anavatos Holdco Limited | Administrative & support | 2020 |
| Anavatos Limited | Transport & logistics | 2019 |
| ANC Accountants Limited | Professional & scientific | 2013 |
| Anchor Jack Ltd | Other services | 2018 |
| Anda House Ltd | Hospitality | 2023 |
| Andalusia Holdings Limited | Real estate | 2024 |
| Andeky Ltd | Professional & scientific | 2023 |
| Andone Ltd | Construction | 2019 |
| Andras OSZ Ltd | Other services | 2023 |
| Andreas Trans Ltd | Transport & logistics | 2015 |
| Andrei Cristescu Ltd | Real estate | 2026 |
| Andrej Driving Ltd | Transport & logistics | 2019 |
| Andrew London Construction Ltd | Construction | 2024 |
| Andrews Mechanical Limited | Construction | 2015 |
| Andy's Salon Ltd | Other services | 2015 |
| ANG Houses Ltd | Real estate | 2020 |
| Angel Cars Wembley Limited | Transport & logistics | 2018 |
| Angel EYE Centre Limited | Wholesale & retail | 2003 |
| Angel Knight Ltd | Real estate | 2024 |
| Angel Real Estate Limited | Real estate | 2025 |
| Angel Tours & Travels Limited | Hospitality | 2010 |
| Angel Tours Limited | Administrative & support | 2019 |
| Angels (Kingsleigh) Ltd | Health & social care | 2007 |
| Angels After School Club Ltd | Education | 2019 |
| Anglo - Iraqi Dialogue Foundation | Education | 2012 |
| Anglo Asian Cash & Carry Limited | Wholesale & retail | 2003 |
| Anglopol Management Limited | Real estate | 1990 |
| Angs Collection Ltd | Wholesale & retail | 2026 |
| Angus Burgers Ltd. | Hospitality | 2020 |
| Animals Actually Ltd | Arts & recreation | 2013 |
| Animmma Ltd | Health & social care | 2022 |
| Aniruth Limited | Wholesale & retail | 2020 |
| Anish Creative Limited | Professional & scientific | 2017 |
| Anivag Limited | Real estate | 2020 |
| Ani’S Cakes Ltd | Manufacturing | 2026 |
| Anja Fashionmode Ltd | Wholesale & retail | 2023 |
| Anjalibeautytrenz Ltd | Wholesale & retail | 2017 |
| Anjoman Educational Foundation | Education | 2018 |
| ANK Contractor Ltd | Construction | 2025 |
| Ank's Beauty Clinic Ltd | Other services | 2020 |
| Ankiri Limited | Extraterritorial | 2003 |
| ANN Homes Limited | Hospitality | 2025 |
| Annor Labs Ltd | Information & communication | 2026 |
| Annuity Solutions Ltd. | Professional & scientific | 2014 |
| Anokha Productions Limited | Professional & scientific | 2003 |
| Anokhi Properties Ltd | Real estate | 2025 |
| Anora Property Limited | Real estate | 2023 |
| Another Route to Knowledge CIC | Other services | 2024 |
| Anquit Ltd | Construction | 2025 |
| Anriki Limited | Other services | 2012 |
| ANS International (PVT) Ltd | Wholesale & retail | 2022 |
| ANS Steel Limited | Manufacturing | 2025 |
| Ansar Youth Project | Health & social care | 2006 |
| ANT Travel Group Ltd | Administrative & support | 2023 |
| Anta Ocean Limited | Administrative & support | 2021 |
| Antaka Limited | Other services | 2025 |
| Antaro Holdings Ltd | Wholesale & retail | 2017 |
| Anthony Gilroy Accountancy Services Limited | Professional & scientific | 1999 |
| Anthony James Accounting Limited | Professional & scientific | 2021 |
| Anthony Lewis Peart Ltd | Extraterritorial | 2022 |
| Anton Ivlev Ltd | Information & communication | 2022 |
| Ants Business Solutions Ltd | Information & communication | 2023 |
| Antson Engines Limited | Manufacturing | 2016 |
| ANU & Rupan Property Ltd | Real estate | 2024 |
| Anuhospitalitystaff Ltd | Administrative & support | 2025 |
| Anuram Catering Ltd | Hospitality | 2025 |
| Anuram Ltd | Wholesale & retail | 2021 |
| Anusha Estates Ltd | Real estate | 2022 |
| Anushika Trader Ltd | Wholesale & retail | 2025 |
| Anushk Optical Limited | Wholesale & retail | 2023 |
| Anushk Properties Limited | Real estate | 2016 |
| ANY Car Rental Ltd | Administrative & support | 2020 |
| ANY Drivers Fleet Management Limited | Education | 2026 |
| Anybuild Property Solutions Limited | Construction | 2012 |
| Aoba Education Limited | Education | 2026 |
| AOC Electrical Solutions Ltd | Construction | 2026 |
| Aocfilms Ltd | Information & communication | 2024 |
| AOM International Ltd | Wholesale & retail | 2015 |
| Aoon Design and Build Limited | Construction | 2016 |
| AP Bhavsar Limited | Wholesale & retail | 2025 |
| AP Click & Supplies Ltd | Wholesale & retail | 2024 |
| AP Environmental Ltd | Construction | 2025 |
| AP Medical Ltd | Professional & scientific | 2019 |
| AP Squared Propco Limited | Real estate | 2022 |
| Apatel Medical Ltd | Health & social care | 2025 |
| APDP17 Ltd | Wholesale & retail | 2020 |
| Aperture Project Ltd | Wholesale & retail | 2026 |
| Apetrei Ventures Ltd | Education | 2025 |
| Apex Digital Systems Ltd | Information & communication | 2026 |
| Apex Global Ventures Ltd | Information & communication | 2024 |
| Apex T Ltd | Construction | 2025 |
| Apexcrest Limited | Wholesale & retail | 2010 |
| Apextion DMC UK Limited | Administrative & support | 2019 |
| API AVI One Store Limited | Wholesale & retail | 2025 |