| Aegify Properties Ltd | Real estate | 2023 |
| Aelia Events Ltd | Hospitality | 2016 |
| Aeon Estates Ltd | Real estate | 2010 |
| Aerial Solutions Ltd | Wholesale & retail | 2022 |
| Aerolectric Ltd | Manufacturing | 2021 |
| Aesthetics Ocean Ltd | Other services | 2024 |
| Aesw Limited | Construction | 2025 |
| AFA Prime Ltd | Wholesale & retail | 2025 |
| AFC - Asian Food Centre Limited | Wholesale & retail | 2011 |
| AFC - Halal Meat Ltd | Wholesale & retail | 2015 |
| Affes Decor Ltd | Construction | 2015 |
| Affordable Builders London Ltd | Construction | 2026 |
| Afghan Grill Limited | Hospitality | 2019 |
| AFK Vehicles Ltd | Wholesale & retail | 2023 |
| Afnanu Limited | Hospitality | 2024 |
| Africado Foods Limited Limited | Other services | 2021 |
| Afro Charm Limited | Wholesale & retail | 2024 |
| Afro Connect Ltd | Wholesale & retail | 2025 |
| AFT2 (SC) Bidco Limited | Financial services | 2026 |
| AG Elite Limited | Professional & scientific | 2024 |
| AG Premium Transport Ltd | Transport & logistics | 2022 |
| Ag-Finds Limited | Wholesale & retail | 2023 |
| AGA Security Ltd | Administrative & support | 2022 |
| Aga's Nursery Ltd | Health & social care | 2024 |
| Agam Deliveries Ltd | Transport & logistics | 2021 |
| Agill Transport Ltd | Transport & logistics | 2022 |
| AGM Windows Ltd | Manufacturing | 2021 |
| Agnelo Services Limited | Construction | 2025 |
| Agnr Ltd | Real estate | 2023 |
| AGP Consultancy Ltd | Professional & scientific | 2026 |
| Agps Global Limited | Administrative & support | 2017 |
| Agrimet Limited | Financial services | 2021 |
| Agrox Limited | Wholesale & retail | 2025 |
| AH Luxury Chauffeurs Ltd | Transport & logistics | 2025 |
| AH Private Security Protection Ltd | Administrative & support | 2023 |
| Ahaa Dosa Limited | Hospitality | 2009 |
| AHB Medical London Limited | Health & social care | 2013 |
| Ahindustries Ltd | Wholesale & retail | 2024 |
| Ahluwaliabuilders Ltd | Construction | 2023 |
| AHM Corp Ltd | Administrative & support | 2024 |
| Ahmanah Ltd | Wholesale & retail | 2023 |
| Ahmed Halal Meat Limited | Hospitality | 2010 |
| Ahmed Halal Meat-Uk Ltd | Wholesale & retail | 2026 |
| Ahmed Partnership Limited | Real estate | 2014 |
| Ahmed Rebelz Ltd | Professional & scientific | 2018 |
| Ahmed Software Consultancy Ltd | Information & communication | 2016 |
| Ahoja Retailer Services Limited | Information & communication | 2011 |
| Ahuja Empire Limited | Real estate | 2025 |
| Ahuja Finance Ltd | Real estate | 2023 |
| Ahuja Investment Group Ltd | Real estate | 2026 |
| Ahuja Investors Limited | Real estate | 2026 |
| Ahuja Properties Empire Limited | Real estate | 2026 |
| Ahuja Properties Ltd | Real estate | 2019 |
| AI BIZ Tech Ltd | Information & communication | 2014 |
| AI Blocks Consulting Ltd | Information & communication | 2024 |
| AI Creations Ltd | Wholesale & retail | 2023 |
| AI Homes Developments Ltd | Construction | 2023 |
| AI Learning Ltd | Information & communication | 2024 |
| AIB Property Services Ltd | Real estate | 2020 |
| Aibak Properties Ltd | Real estate | 2022 |
| Aikhan Ltd | Wholesale & retail | 2025 |
| Ailawalia Investment Ltd | Real estate | 2024 |
| Ailb Ltd | Construction | 2025 |
| Aima Limited | Real estate | 2004 |
| Aioe Ltd | Information & communication | 2016 |
| Aion Renewable Energy Consultants Ltd | Professional & scientific | 2025 |
| Air Kathmandu Ltd | Transport & logistics | 2010 |
| Air Marine Limited | Transport & logistics | 1993 |
| Air Nana Limited | Extraterritorial | 2013 |
| Airbridge International Agencies Limited | Administrative & support | 2008 |
| Airbuild Ltd | Construction | 2024 |
| Airclaims Group (Overseas) Limited | Financial services | 1983 |
| Airclaims Limited | Professional & scientific | 1961 |
| Airlines Baggage Limited | Transport & logistics | 2025 |
| Airport Cafe Ltd | Hospitality | 2023 |
| Airport Connect Ltd | Administrative & support | 2020 |
| Airport Drives Ltd | Transport & logistics | 2023 |
| Airport Executive Travel Limited | Transport & logistics | 2011 |
| Airport Parking Finder Limited | Administrative & support | 2022 |
| Airport Parking Xpert Ltd | Transport & logistics | 2025 |
| Airport Transfer Services UK Limited | Transport & logistics | 2023 |
| Airports Chauffeuring Limited | Transport & logistics | 2023 |
| Airports Travel Ltd | Transport & logistics | 2022 |
| Airvolve Limited | Professional & scientific | 2025 |
| Airwise Consultancy Limited | Administrative & support | 2010 |
| Aisha Beauty Ltd | Other services | 2018 |
| Aithlaz Limited | Professional & scientific | 2025 |
| Aiuadistributions Ltd | Wholesale & retail | 2026 |
| Aizal&Ayesha Ltd | Wholesale & retail | 2025 |
| AJ Brothers Convenience Limited | Wholesale & retail | 2021 |
| AJ Builders Merchants Limited | Wholesale & retail | 2023 |
| AJ Home Build Ltd | Construction | 2024 |
| AJ Mobiles & Laptops Repairs Ltd | Other services | 2021 |
| AJ Phone Care Ltd | Other services | 2020 |
| AJ Sadiq Ltd | Other services | 2016 |
| AJ Singh Constructions Limited | Construction | 2022 |
| AJ Tech Partners Ltd | Wholesale & retail | 2023 |
| AJA Madan Properties Ltd | Real estate | 2025 |
| AJB Deliveries Limited | Transport & logistics | 2021 |
| AJK Private Limited | Transport & logistics | 2019 |