| AA Shawarma Ltd | Hospitality | 2025 |
| AA Skin Formulations Ltd | Health & social care | 2022 |
| AA Sports Zone Ltd | Wholesale & retail | 2025 |
| AA Store 24 Ltd | Wholesale & retail | 2024 |
| AA Sugar Ltd | Wholesale & retail | 2025 |
| AA Supported Solutions Ltd | Health & social care | 2024 |
| AA Surgipath Ltd | Health & social care | 2011 |
| AA UK EOT Trustee Limited | Administrative & support | 2024 |
| Aa&F Property Limited | Real estate | 2023 |
| Aa&Ha Couriers Limited | Transport & logistics | 2023 |
| Aa&M Decor Limited | Construction | 2022 |
| Aa.Nav Ltd | Wholesale & retail | 2025 |
| Aa.Nn Group Limited | Real estate | 2022 |
| AA02 Limited | Transport & logistics | 2025 |
| AA1 Investments Ltd | Real estate | 2024 |
| AA3 Care Solutions Limited | Health & social care | 2022 |
| AA8 Limited | Professional & scientific | 2024 |
| AAA Alpha Ltd | Real estate | 2023 |
| AAA Birmingham Mots Centre Limited | Other services | 2017 |
| AAA Birmingham Mots Station Limited | Wholesale & retail | 2022 |
| AAA Cleaning Services Ltd | Administrative & support | 2022 |
| AAA Compliance Europe Ltd | Construction | 2025 |
| AAA Consortium Ltd | Real estate | 2024 |
| AAA Delhi Limited | Hospitality | 2025 |
| AAA Eco Friendly Ltd | Administrative & support | 2022 |
| AAA Electrical Wholesale Limited | Wholesale & retail | 2024 |
| AAA Financial Investments Limited | Real estate | 2023 |
| AAA Housing Limited | Financial services | 2021 |
| AAA Housing Solutions Ltd | Hospitality | 2026 |
| AAA Midland Limited | Hospitality | 2023 |
| AAA Nafri Properties (Arrow) Ltd | Real estate | 2021 |
| AAA Nafri Properties Ltd | Real estate | 2021 |
| AAA Pharmaceuticals Limited | Manufacturing | 2012 |
| AAA Private Limited | Wholesale & retail | 2020 |
| AAA Property Solutions Ltd | Real estate | 2024 |
| AAA Services and Properties Limited | Households | 2020 |
| Aaaa Connected Limited | Real estate | 2022 |
| Aaabirmingham Limited | Transport & logistics | 2023 |
| Aaad Limited | Administrative & support | 2023 |
| Aaag UK Holdco Limited | Financial services | 2025 |
| Aaaizzy Limited | Health & social care | 2015 |
| Aaapmspms Ltd | Administrative & support | 2021 |
| Aaarc Limited | Wholesale & retail | 2010 |
| Aaarevolution Limited | Wholesale & retail | 2025 |
| Aaaz Desi Kitchen Limited | Wholesale & retail | 2023 |
| AAB Auto Engineering Limited | Manufacturing | 2022 |
| AAB IT Consultants Limited | Information & communication | 2017 |
| Aabish Corporation Ltd | Hospitality | 2025 |
| Aabs Herbal Ltd | Manufacturing | 2025 |
| AAC Consultants Ltd | Professional & scientific | 2016 |
| AAC Cyroma Limited | Manufacturing | 2002 |
| AAC Property Limited | Real estate | 2019 |
| AAD Exclusive Ltd | Administrative & support | 2024 |
| AAD Radiology Ltd | Health & social care | 2022 |
| Aadam Zayd Limited | Professional & scientific | 2025 |
| Aadams Foods Ltd | Hospitality | 2019 |
| Aadamsautos Ltd | Wholesale & retail | 2025 |
| Aadel Limited | Professional & scientific | 2009 |
| Aadhya Tech Limited | Information & communication | 2019 |
| Aadin Store Ltd | Wholesale & retail | 2025 |
| Aadm Trans Limited | Transport & logistics | 2017 |
| AAE Maintenance Ltd | Administrative & support | 2026 |
| AAE Vision Limited | Professional & scientific | 2023 |
| Aaesthetix Ltd | Other services | 2019 |
| AAF360 Ltd | Education | 2024 |
| Aage Limited | Hospitality | 2025 |
| Aagrub Ltd | Hospitality | 2026 |
| AAH Catering Limited | Hospitality | 2019 |
| AAH Housing Ltd | Real estate | 2025 |
| Aahil Investments Limited | Financial services | 2020 |
| Aahil Property Investments Ltd | Real estate | 2025 |
| Aahmed M Stores Ltd | Wholesale & retail | 2025 |
| Aahq Limited | Hospitality | 2025 |
| Aaic Properties Limited | Real estate | 2025 |
| Aaila Consultancy Limited | Wholesale & retail | 2025 |
| Aaimd CIC | Health & social care | 2025 |
| Aairah Beauty Ltd | Wholesale & retail | 2025 |
| Aaisha Consulting Limited | Information & communication | 2020 |
| Aaisha’S Parcels Limited | Transport & logistics | 2025 |
| AAJ BI Consulting Limited | Other services | 2019 |
| AAJ Builders Ltd | Construction | 2025 |
| AAJ Consultants Ltd | Real estate | 2023 |
| AAJ Limited | Real estate | 2018 |
| AAJ Sofa and Beds Ltd | Wholesale & retail | 2025 |
| AAK AI Solutions Ltd | Information & communication | 2024 |
| AAK IT Limited | Information & communication | 2013 |
| AAK Real Estate (Commercial) Ltd | Real estate | 2023 |
| AAK Trading Ltd | Wholesale & retail | 2025 |
| Aaks Developments Ltd | Real estate | 2026 |
| Aal.Trader Ltd | Real estate | 2025 |
| Aala Imam Balfaqih Foodstuff Trading Company Ltd | Wholesale & retail | 2023 |
| Aalia Properties Limited | Real estate | 2022 |
| Aalim.Biz Limited | Real estate | 2011 |
| Aaliya Limited | Wholesale & retail | 2025 |
| Aaliyah Clothing Shop Ltd | Other services | 2014 |
| Aaliyahsmodest Ltd | Wholesale & retail | 2025 |
| Aaliyan Accessories Ltd | Wholesale & retail | 2019 |
| AAM 56NCW Ltd | Real estate | 2022 |
| AAM Builders UK Limited | Administrative & support | 2016 |
| AAM Specialists Ltd | Professional & scientific | 2024 |