| Ansil Homes Limited | Real estate | 2025 |
| Ansimarketplace Ltd | Wholesale & retail | 2025 |
| Antalya Sunshine Properties Ltd | Real estate | 2020 |
| Anthony Homes and Investments Ltd | Real estate | 2025 |
| Antiguo Amor Ltd | Wholesale & retail | 2024 |
| Antique Flying Ltd | Wholesale & retail | 2025 |
| Antkahn Limited | Manufacturing | 2014 |
| Antler Diamond Properties Limited | Real estate | 2024 |
| Antler Interiors Limited | Manufacturing | 2020 |
| Anto Trans Group Limited | Transport & logistics | 2019 |
| Antoinette Estates Ltd | Real estate | 2024 |
| ANTONY1 Ltd | Construction | 2026 |
| Anuara ALI Limited | Professional & scientific | 2022 |
| ANW Performance Ltd | Wholesale & retail | 2025 |
| Anwarz Hub Ltd | Wholesale & retail | 2024 |
| ANY Lease Ltd | Administrative & support | 2026 |
| Anya Dawan Car Wash Limited | Other services | 2016 |
| Anzbfd Ltd | Wholesale & retail | 2025 |
| AO Electrical Contractors Limited | Construction | 2021 |
| AOG Security Services Ltd | Wholesale & retail | 2018 |
| AOS Logistics Limited | Transport & logistics | 2025 |
| Aouk Ltd | Transport & logistics | 2025 |
| Aouzar Limited | Wholesale & retail | 2025 |
| Aouzer Limited | Wholesale & retail | 2025 |
| AP Coffeebreak Limited | Hospitality | 2020 |
| AP Medicapharma Ltd | Health & social care | 2023 |
| Ap's Local Limited | Wholesale & retail | 2024 |
| APA Building Solutions Limited | Construction | 2021 |
| APA Concrete Repairs Limited | Construction | 2001 |
| APA Group Services Limited | Construction | 2005 |
| APA Height Access Limited | Construction | 2022 |
| Apartsco Limited | Real estate | 2015 |
| APB CNC Limited | Manufacturing | 2005 |
| Apex Abode Ltd | Real estate | 2020 |
| Apex Accountants (Bradford) Ltd | Professional & scientific | 2023 |
| Apex Auto Traders Ltd | Wholesale & retail | 2025 |
| Apex Builders & Landscaping Ltd | Construction | 2026 |
| Apex Care Consulting Ltd | Health & social care | 2025 |
| Apex Care Impact Ltd | Administrative & support | 2026 |
| Apex Clinical Ltd | Professional & scientific | 2026 |
| Apex Connect-Uk Limited | Transport & logistics | 2025 |
| Apex Courier Services Ltd | Transport & logistics | 2025 |
| Apex Cuts Limited | Other services | 2025 |
| Apex EYE and Visioncare Limited | Health & social care | 2021 |
| Apex Family Law Ltd | Professional & scientific | 2017 |
| Apex Financial & Management Limited | Professional & scientific | 2012 |
| Apex Fleet Ltd | Wholesale & retail | 2023 |
| Apex Freight Ltd | Transport & logistics | 2026 |
| Apex Global Distribution Ltd | Wholesale & retail | 2013 |
| Apex Global Trade Limited | Wholesale & retail | 2020 |
| Apex Healthcare Solutions Ltd | Professional & scientific | 2017 |
| Apex Kickboxing Academy Ltd | Arts & recreation | 2026 |
| Apex Mercury Logistics Ltd | Transport & logistics | 2026 |
| Apex Motorhub Limited | Wholesale & retail | 2025 |
| Apex Physio Clinic Ltd | Other services | 2025 |
| Apex Self Drive Ltd | Administrative & support | 2020 |
| Apex Social Marketing Ltd | Professional & scientific | 2026 |
| Apex Solicitors Ltd | Professional & scientific | 2011 |
| Apex Sports and Prestige Ltd | Wholesale & retail | 2025 |
| Apex Tissues Limited | Manufacturing | 2019 |
| Apex Used Car Sales Limited | Wholesale & retail | 2015 |
| Apex Van Hire Ltd | Transport & logistics | 2025 |
| Apexcart Ltd | Transport & logistics | 2025 |
| Apexium Ventures Ltd | Wholesale & retail | 2024 |
| Apexonline Emporium Ltd | Wholesale & retail | 2025 |
| Apexresilience Limited | Health & social care | 2024 |
| Apextransport&Recovery Limited | Transport & logistics | 2024 |
| Aphrodite Suites Ltd | Hospitality | 2019 |
| API Clinical Limited | Health & social care | 2021 |
| Apna Bazar Limited | Wholesale & retail | 2025 |
| Apna General Store Ltd | Wholesale & retail | 2023 |
| Apna Zevar Limited | Wholesale & retail | 2016 |
| Apnabroadcast Ltd | Information & communication | 2022 |
| Apni Dakan Limited | Wholesale & retail | 2016 |
| Apollo Concrete Limited | Construction | 2024 |
| Apollo House Ltd | Real estate | 2019 |
| Apperley Court Management Company Limited | Households | 2003 |
| Apperley Gardens Limited | Administrative & support | 2010 |
| Apperley View Limited | Construction | 2022 |
| Appetisers Sandwich and Pizza Bar Limited | Hospitality | 2023 |
| Appexreputebpo Ltd | Professional & scientific | 2025 |
| Appeze Ltd | Information & communication | 2020 |
| Applaush Ltd | Wholesale & retail | 2020 |
| Apple and Pear Alkrington Limited | Hospitality | 2021 |
| Applelec Group Limited | Professional & scientific | 2005 |
| Applelec Intl Limited | Manufacturing | 2014 |
| Applelec Sign Components (UK) Ltd. | Manufacturing | 1998 |
| Applelec Trustees Limited | Administrative & support | 2021 |
| Applespice Limited | Wholesale & retail | 2017 |
| Appleton Housing Ltd | Hospitality | 2026 |
| Application Integrity Review (Air) Ltd | Information & communication | 2026 |
| Appna Cash & Carry (Manchester) Limited | Wholesale & retail | 2011 |
| Appointed Fashion Ltd | Manufacturing | 2024 |
| Appointee Care Limited | Financial services | 2024 |
| Appointeer Limited | Information & communication | 2025 |
| Appraisal & Purchase Ltd | Professional & scientific | 2015 |
| Appris Charity Limited | Education | 1983 |
| Appris Management Limited | Administrative & support | 1997 |
| Approved Bodyshop Ltd | Wholesale & retail | 2026 |
| Approved LDR Electrical Ltd | Construction | 2016 |