| Adjoaa Ltd | Wholesale & retail | 2021 |
| Adjuvant Coaching & Consulting Limited | Professional & scientific | 2024 |
| ADK Marketplace Ltd | Wholesale & retail | 2024 |
| Adllen Services Ltd | Construction | 2014 |
| Admire Consultancy Services Ltd | Information & communication | 2014 |
| Adonai Care Personnel Limited | Health & social care | 2012 |
| ADP Systems Limited | Information & communication | 2012 |
| ADR Audit Services Limited | Professional & scientific | 2016 |
| ADR Aware CIC | Health & social care | 2026 |
| Adrav Ltd | Real estate | 2020 |
| Adrian Stoica Limited | Construction | 2019 |
| Adroit Software Ltd | Information & communication | 2010 |
| ADS Artistic Designed Surfaces Ltd | Construction | 2020 |
| ADS Decorating Group Ltd | Financial services | 2020 |
| ADS London Investments Limited | Real estate | 2024 |
| ADS Painting & Maintenance Ltd | Construction | 2006 |
| ADS UK Investments Ltd | Real estate | 2020 |
| Advance Consultants Ltd | Professional & scientific | 2026 |
| Advance Online Digital Media Group Limited | Manufacturing | 2018 |
| Advanced Climate and Energy Solutions Ltd | Construction | 2025 |
| Advanced Refrigeration Services Ltd | Construction | 2019 |
| Adventures From Qatar Limited | Arts & recreation | 2025 |
| Advertising 99 Ltd | Other services | 2025 |
| Advertix Limited | Professional & scientific | 2023 |
| Advestage Ltd | Real estate | 2016 |
| Advik Limited | Construction | 2016 |
| Advika Limited | Transport & logistics | 2022 |
| Adwenpa Services Ltd | Health & social care | 2020 |
| Adworkshop Ltd | Professional & scientific | 2010 |
| ADY Solutions Limited | Construction | 2015 |
| Adypics Production Ltd | Information & communication | 2019 |
| Adzwaytv Ltd | Information & communication | 2023 |
| AE Business Holding Ltd | Information & communication | 2022 |
| AE Medical Limited | Health & social care | 2007 |
| AE Muja Construction Ltd | Construction | 2025 |
| AE Richter Consulting Ltd | Information & communication | 2026 |
| Aeg.Clad. Ltd | Construction | 2026 |
| Aegean Yachting (International) Company Limited | Other services | 2016 |
| AEL Trading Limited | Transport & logistics | 2026 |
| AEM Formwork Ltd | Construction | 2026 |
| Aeon Cloud Solutions Limited | Information & communication | 2020 |
| AER Maintenance Limited | Construction | 2026 |
| Aerial Octopus Limited | Administrative & support | 2017 |
| Aero Minicabs Ltd | Other services | 2014 |
| Aerorepair Ltd | Professional & scientific | 2025 |
| AES General Ltd | Construction | 2025 |
| Aesthetics & Wellness Hub Ltd | Administrative & support | 2026 |
| Aesthetics Dynasty Ltd | Real estate | 2022 |
| Aesthetics for Life Limited | Health & social care | 2019 |
| Aether Vault Ltd | Wholesale & retail | 2025 |
| Aevl Ltd | Construction | 2019 |
| AEZ Dwellings Limited | Real estate | 2022 |
| AF Medics Limited | Health & social care | 2020 |
| AF Sealants Ltd | Construction | 2022 |
| AF World Solutions Limited | Information & communication | 2011 |
| Af&M Services Limited | Construction | 2019 |
| Af-Mok Ltd | Wholesale & retail | 2017 |
| AFA Janjua Services Ltd | Wholesale & retail | 2024 |
| AFC Holdings Limited | Professional & scientific | 2018 |
| Affection Health Care Ltd | Public administration | 2019 |
| Affinia Healthcare Limited | Health & social care | 2012 |
| Affinia Housing CIC | Hospitality | 2019 |
| Affinity Building Services Ltd | Other services | 2016 |
| Affinity Sounds Ltd | Extraterritorial | 2024 |
| Affluence Travel Ltd | Transport & logistics | 2024 |
| Affluent Finds Ltd | Wholesale & retail | 2024 |
| AFI Consulting Limited | Administrative & support | 2009 |
| AFI Property Development and Management Ltd | Real estate | 2015 |
| Afisjames Ltd | Wholesale & retail | 2018 |
| Afisjamesgoods Ltd | Wholesale & retail | 2021 |
| AFJ Associates Ltd | Professional & scientific | 2017 |
| Aforda Limited | Wholesale & retail | 2010 |
| Aforda Property Limited | Real estate | 2025 |
| Afra Accounting Ltd | Professional & scientific | 2018 |
| Africa Corp Ltd | Professional & scientific | 2011 |
| African Best Foods Ltd | Wholesale & retail | 2013 |
| African Culture Arts and Sport Network | Other services | 2014 |
| African Green Grocery Limited | Wholesale & retail | 2024 |
| African Music Entertainment Limited | Arts & recreation | 2016 |
| African Music Network Limited | Information & communication | 2012 |
| African Music Promotion Ltd | Arts & recreation | 2019 |
| Afrihomes Realtors Limited | Real estate | 2024 |
| Afritropic Ltd | Manufacturing | 2021 |
| Afro World Foods Ltd | Other services | 2025 |
| Afrodex Limited | Professional & scientific | 2024 |
| AFS Secure Limited | Professional & scientific | 2022 |
| Aftab ALI Orphanage | Health & social care | 2020 |
| AFZ Consulting Limited | Real estate | 2010 |
| Afzix Trading & Services Limited | Wholesale & retail | 2025 |
| AG Assessment Services Limited | Administrative & support | 2026 |
| AG Brothers Ltd | Wholesale & retail | 2024 |
| AG Elite Drylining Ltd | Construction | 2024 |
| AG Group Construction Ltd | Construction | 2026 |
| Agacorp Ltd | Construction | 2023 |
| Agampropertygroup Ltd | Real estate | 2024 |
| Agape 7 Care Limited | Health & social care | 2025 |
| Agarwal AI Ltd | Information & communication | 2022 |
| Agas Foods Ltd | Hospitality | 2012 |
| AGB Solutions Ltd | Transport & logistics | 2019 |
| Ageless Teenagers CIC | Health & social care | 2025 |