| Anyidon & Sons Services Ltd | Other services | 2017 |
| Anyjobsalljobs Ltd | Construction | 2023 |
| Anyprintsolution Limited | Manufacturing | 2025 |
| Anyspace Lettings Limited | Real estate | 2019 |
| Anything Floral Ltd | Wholesale & retail | 2024 |
| Anything Theatre Company Ltd | Administrative & support | 2024 |
| Anytime Consult Ltd | Professional & scientific | 2023 |
| Anytime Freight Limited | Transport & logistics | 2019 |
| Anytime Parts Ltd | Wholesale & retail | 2025 |
| Anytime Vehicle Parts Ltd | Wholesale & retail | 2025 |
| Anyvision Ltd | Administrative & support | 2022 |
| ANZ Trade UK Limited | Wholesale & retail | 2025 |
| Anza Enterprises Ltd | Wholesale & retail | 2022 |
| Anza Homes Ltd | Construction | 2026 |
| Anza Trading Ltd | Wholesale & retail | 2024 |
| Anzola Limited | Wholesale & retail | 2026 |
| AO Hire Ltd | Administrative & support | 2025 |
| AO JIU Wang Co., Ltd | Extraterritorial | 2024 |
| AO Property Works Solutions Ltd | Construction | 2025 |
| AO2 Ltd | Real estate | 2022 |
| AOA Cafe & Street Food Ltd | Hospitality | 2026 |
| AOA Golden Hour Cleaning & Facilities Ltd | Administrative & support | 2026 |
| AOA Rental Ltd | Administrative & support | 2024 |
| Aoal Construction Ltd | Construction | 2022 |
| AOB Global Foods Ltd. | Wholesale & retail | 2025 |
| AOB Properties Limited | Real estate | 2023 |
| AOC Demolition Limited | Construction | 2016 |
| AOC Digital Services Ltd | Professional & scientific | 2026 |
| AOC Investments Limited | Construction | 1993 |
| AOC Rice Mills UK Limited | Wholesale & retail | 2023 |
| Aodcgi Property Group Ltd | Construction | 2026 |
| Aode Tradings Limited | Wholesale & retail | 2023 |
| Aoet Ltd | Wholesale & retail | 2025 |
| AOG Tech Limited | Manufacturing | 2014 |
| Aogarrick Limited | Manufacturing | 2019 |
| AOI Digital Ltd | Wholesale & retail | 2024 |
| AOI Homes Ltd | Real estate | 2024 |
| AOK Manchester Ltd | Other services | 2016 |
| AOK Renovations Ltd | Construction | 2026 |
| AOK Services Ltd | Health & social care | 2026 |
| AOK Trading Ltd | Wholesale & retail | 2018 |
| Aokeh Ltd | Construction | 2024 |
| AOL Logistics Limited | Wholesale & retail | 2016 |
| AOL Properties Ltd | Hospitality | 2024 |
| AOL Property Ltd | Real estate | 2022 |
| AOL RAD Consulting Ltd | Health & social care | 2021 |
| AOM 12 Limited | Real estate | 2024 |
| AON Estates Ltd. | Construction | 2017 |
| Aooi Holding Ltd | Financial services | 2021 |
| Aoptical Limited | Other services | 2016 |
| Aoqa Consultancy Ltd | Information & communication | 2019 |
| Aorta International Ltd | Wholesale & retail | 2021 |
| AOS Investments Limited | Real estate | 2014 |
| AOS Property Management Limited | Extraterritorial | 2022 |
| AOS Tech Consulting Limited | Information & communication | 2022 |
| Aosh Awarding Body UK Limited | Public administration | 2015 |
| Aosh Qualifications Limited | Education | 2018 |
| Aoun Al-Mustahlik Trading and Import Ltd | Wholesale & retail | 2026 |
| Aous Ltd | Manufacturing | 2022 |
| AOV Solutions Ltd | Professional & scientific | 2020 |
| AP & DH Properties Limited | Real estate | 2018 |
| AP Choral Ltd | Arts & recreation | 2024 |
| AP Civils & Surfacing Limited | Construction | 2017 |
| AP Comfort Limited | Real estate | 2022 |
| AP Commercial Management Ltd | Professional & scientific | 2017 |
| AP Consultancy Ltd | Professional & scientific | 2023 |
| AP Data Insights & Solutions Ltd | Administrative & support | 2012 |
| AP Design & Build Joinery Ltd | Construction | 2024 |
| AP Development Group Ltd | Construction | 2021 |
| AP Digital Business Ltd | Administrative & support | 2026 |
| AP Digital Summits Ltd | Administrative & support | 2023 |
| AP Drywall Systems Ltd | Construction | 2024 |
| AP Football Coaching Ltd | Education | 2025 |
| AP Hall Design & Build Limited | Construction | 2019 |
| AP Incorporation Ltd | Professional & scientific | 2025 |
| AP Inn Keepers Ltd | Wholesale & retail | 2024 |
| AP Leisure Limited | Wholesale & retail | 2024 |
| AP Logistic Services Limited | Transport & logistics | 2021 |
| AP Medical Rescue Ltd | Health & social care | 2025 |
| AP North Ltd | Transport & logistics | 2026 |
| AP Office Supplies Limited | Wholesale & retail | 2000 |
| AP Paper Supplies Limited | Wholesale & retail | 2003 |
| AP Payroll Limited | Administrative & support | 2025 |
| AP SD Seventy Nine Limited | Wholesale & retail | 2025 |
| AP3 Holdings Limited | Financial services | 2019 |
| AP3D Ltd | Information & communication | 2023 |
| APA Productions Ltd | Manufacturing | 2019 |
| Apac Sourcing Limited | Administrative & support | 2013 |
| Apache Applications Ltd | Information & communication | 2008 |
| Apache Sales Limited | Transport & logistics | 2023 |
| Apachiz Takeaway Limited | Hospitality | 2017 |
| Apadana Capital Limited | Professional & scientific | 2015 |
| Apadana Management 3 Limited | Professional & scientific | 2016 |
| Apadana Management Limited | Professional & scientific | 2015 |
| Apadana Trading Group Ltd | Wholesale & retail | 2025 |
| Apadana Trustees Limited | Professional & scientific | 2015 |
| Apageo Ltd | Real estate | 2025 |
| Apam Ltd | Real estate | 2011 |
| Apam UK Property Services Ltd | Real estate | 2021 |
| Apatosi Ltd | Hospitality | 2017 |