| AGM Investment Properties Ltd | Real estate | 2025 |
| AGM Real Estate Ltd | Real estate | 2024 |
| AGM Recruitment & Careers Ltd | Administrative & support | 2024 |
| AGN Consultancy Services Limited | Professional & scientific | 2025 |
| AGN United Ltd | Construction | 2024 |
| Agneeswara Ltd | Wholesale & retail | 2024 |
| Agnes G Ltd | Professional & scientific | 2024 |
| Agnes Lamb Ltd | Real estate | 2020 |
| Agnifix Ltd | Information & communication | 2017 |
| Agora Business Consulting Limited | Extraterritorial | 2021 |
| Agora Solutions Holdings Limited | Financial services | 2020 |
| Agora Solutions Limited | Information & communication | 2006 |
| Agoria Ltd | Professional & scientific | 2012 |
| Agorogiannis Ophthalmology Ltd | Health & social care | 2022 |
| AGP Investments Ltd | Real estate | 2021 |
| AGP Property Holdings Ltd | Real estate | 2018 |
| AGP Skin Limited | Wholesale & retail | 2024 |
| AGR Acquisitions Ltd | Financial services | 2019 |
| AGR Gaming Ltd | Manufacturing | 2026 |
| AGR Property Management Ltd | Real estate | 2024 |
| Agravedi Specialist Pharma Ltd | Health & social care | 2026 |
| Agreed Online Ltd | Information & communication | 2018 |
| Agretti Holdings Limited | Extraterritorial | 2023 |
| Agri Natural Alliance for Supply Ltd | Wholesale & retail | 2025 |
| Agrichain Intelligence Limited | Wholesale & retail | 2025 |
| Agriethos Ltd | Wholesale & retail | 2024 |
| Agritalent Ltd | Administrative & support | 2025 |
| Agro Shop Limited | Wholesale & retail | 2020 |
| Agrokombinat Dzerzhinskiy Ltd | Professional & scientific | 2026 |
| Agromat Ltd | Wholesale & retail | 2024 |
| Agrotrade Service Ltd | Manufacturing | 2023 |
| Agrsoft Ltd | Information & communication | 2024 |
| AGS Communications Ltd | Information & communication | 2025 |
| AGS Home Solutions Ltd | Administrative & support | 2019 |
| AGS Logistics Ltd | Transport & logistics | 2022 |
| AGS Midlands Limited | Manufacturing | 2023 |
| AGS Property Holdings Limited | Financial services | 2023 |
| AGS Services Limited | Professional & scientific | 2016 |
| AGS18TRANSPORT Limited | Transport & logistics | 2025 |
| Agua Accessories Limited | Wholesale & retail | 2011 |
| Aguado Ltd | Information & communication | 2025 |
| Agudo Developments Limited | Extraterritorial | 2015 |
| Aguguo Limited | Construction | 2025 |
| Agui Enterprises Limited | Wholesale & retail | 2025 |
| Aguk Holdings Limited | Real estate | 2021 |
| Agura Global Investments Limited | Financial services | 2025 |
| AGW LOW Consultancy Ltd | Health & social care | 2022 |
| Agwd Holdings Limited | Hospitality | 2025 |
| Agyleortho PRP and Wellness Practice Ltd | Health & social care | 2025 |
| AH Aerial Productions Limited | Information & communication | 2020 |
| AH Albany Ltd | Real estate | 2024 |
| AH Auto Car Parts Ltd | Wholesale & retail | 2024 |
| AH Bargains Limited | Wholesale & retail | 2017 |
| AH Car Parts Limited | Wholesale & retail | 2016 |
| AH Cardiac Services Limited | Health & social care | 2012 |
| AH Commercial (Hereford) Limited | Administrative & support | 2018 |
| AH DIS YAH Nice Ltd | Hospitality | 2025 |
| AH Education and Training Ltd | Education | 2014 |
| AH Electrical (West Midlands) Limited | Construction | 2021 |
| AH Fixings Ltd | Professional & scientific | 2020 |
| AH Forensics Ltd | Information & communication | 2023 |
| AH Hamlet Property Ltd | Real estate | 2022 |
| AH Insulation and Heating Ltd | Construction | 2024 |
| AH Jewellers Ltd | Wholesale & retail | 2024 |
| AH Land Limited | Real estate | 2022 |
| AH Mobile Wholesale Ltd | Wholesale & retail | 2026 |
| AH Optical Limited | Health & social care | 2018 |
| AH Optical Services Ltd | Health & social care | 2013 |
| AH Prime Limited | Wholesale & retail | 2026 |
| AH Pro Services Ltd | Manufacturing | 2017 |
| AH Properties Investments Ltd | Real estate | 2021 |
| AH Property & Investments Limited | Real estate | 2025 |
| AH Property Holdings Limited | Real estate | 2018 |
| AH Quarters Ltd | Extraterritorial | 2024 |
| AH Sales & Consulting Limited | Administrative & support | 2025 |
| AH Shawarma Ltd | Hospitality | 2024 |
| AH Structural Consultants Ltd | Professional & scientific | 2019 |
| AH Trading Services Limited | Administrative & support | 2021 |
| AH Transport & Logistics Limited | Transport & logistics | 2017 |
| AH Transport Solutions (Birmingham) Limited | Transport & logistics | 2015 |
| AH UK Group Limited | Administrative & support | 2024 |
| AH YA SO Nice (UK) Ltd | Hospitality | 2019 |
| AH! Living Ltd | Real estate | 2021 |
| Ah&M Ltd | Hospitality | 2026 |
| Ah-Opi Ltd | Construction | 2017 |
| AH777 Solutions Ltd | Transport & logistics | 2026 |
| AHA Consultancy Ltd | Professional & scientific | 2026 |
| AHA Global Trade Limited | Wholesale & retail | 2025 |
| AHA RPA Solutions Limited | Information & communication | 2025 |
| Aha-Audio Limited | Administrative & support | 2015 |
| Ahad Driving Services Ltd | Education | 2025 |
| Ahad Prime Limited | Wholesale & retail | 2026 |
| Aham Hire Ltd | Transport & logistics | 2026 |
| Ahamzhre Ltd | Transport & logistics | 2021 |
| Ahas Private Client Ltd | Professional & scientific | 2022 |
| Ahas Private Client One Ltd | Administrative & support | 2026 |
| Ahas Private Client Two Ltd | Administrative & support | 2026 |
| Ahasl Ltd | Real estate | 2020 |
| AHB Holdings Ltd | Financial services | 2023 |
| AHB Security Limited | Administrative & support | 2019 |