| AA Media Corporation Limited | Information & communication | 2022 |
| AA Motors R Ltd | Wholesale & retail | 2012 |
| AA Optom Ltd | Health & social care | 2022 |
| AA Pharma Quality & Compliance Ltd | Professional & scientific | 2022 |
| AA Planning Services Ltd | Administrative & support | 2020 |
| AA Plus Roofing & Renovation Ltd | Construction | 2022 |
| AA Process Consulting Ltd | Professional & scientific | 2021 |
| AA Production Ltd | Professional & scientific | 2025 |
| AA Recovery Ltd | Wholesale & retail | 2019 |
| AA Spice Ltd | Hospitality | 2019 |
| AA Star Superstore Ltd | Wholesale & retail | 2017 |
| AA Wine and Food Limited | Wholesale & retail | 2014 |
| Aa&S Ltd | Real estate | 2025 |
| AAA Commodity Consulting Ltd | Professional & scientific | 2013 |
| AAA Dentalab Ltd | Health & social care | 2014 |
| AAA London Investments Limited | Real estate | 2025 |
| AAA Marketing Consultants Ltd | Professional & scientific | 2026 |
| AAA Urology Limited | Health & social care | 2014 |
| Aaab Property PVT Ltd | Real estate | 2024 |
| Aaagm Limited | Professional & scientific | 2021 |
| AAB & Associates Limited | Real estate | 2024 |
| AAB Landscapes Limited | Construction | 2023 |
| AAB Logistics Ltd | Construction | 2017 |
| AAD IT Consultancy Limited | Information & communication | 2023 |
| Aadam Investments Limited | Real estate | 2015 |
| Aade Limited | Construction | 2018 |
| Aadi CCP Limited | Administrative & support | 2017 |
| Aadi's Diamond and Fine Jewellery Limited | Manufacturing | 2025 |
| Aaditas Ltd | Information & communication | 2018 |
| Aaditya Properties Limited | Real estate | 2025 |
| Aadoraa & Company Ltd | Administrative & support | 2011 |
| Aadya Trading Ltd | Wholesale & retail | 2014 |
| Aafiya Care Limited | Administrative & support | 2018 |
| Aaishree Ltd | Wholesale & retail | 2026 |
| Aajaa Lifestyle Ltd | Transport & logistics | 2024 |
| Aaki Limited | Professional & scientific | 2024 |
| Aakp Properties Ltd | Real estate | 2024 |
| Aalbony Limited | Real estate | 2023 |
| Aalfa Limited | Real estate | 2020 |
| Aalhaid.Ai Ltd | Information & communication | 2025 |
| Aalp Ltd | Construction | 2019 |
| AAM Heating and Plumbing Ltd | Construction | 2026 |
| Aamelia Limited | Health & social care | 2015 |
| Aamp Property Investments Ltd | Real estate | 2023 |
| Aamyr Limited | Professional & scientific | 2024 |
| Aanara Properties Ltd | Real estate | 2019 |
| Aangi Art Ltd | Wholesale & retail | 2022 |
| Aanika Finance Limited | Financial services | 2022 |
| Aanika Holdings Limited | Financial services | 2023 |
| Aanika Homes Limited | Real estate | 2020 |
| Aanika Investments Limited | Real estate | 2021 |
| Aanika Management Limited | Real estate | 2021 |
| Aanika Properties Limited | Real estate | 2017 |
| Aanika Realty Limited | Real estate | 2020 |
| Aansh Limited | Wholesale & retail | 2018 |
| Aanya Properties Limited | Extraterritorial | 2012 |
| Aapnukutch Ltd | Arts & recreation | 2023 |
| AAR DE Catering and Event Management Ltd | Transport & logistics | 2022 |
| AAR DE Production Ltd | Professional & scientific | 2016 |
| Aarambh Investment Properties Ltd | Real estate | 2025 |
| Aarambh Venture Limited | Hospitality | 2026 |
| Aarasoft Limited | Information & communication | 2025 |
| Aarav Home Limited | Real estate | 2019 |
| Aarch Consulting Ltd | Information & communication | 2024 |
| Aareva Ltd | Financial services | 2019 |
| Aaria Cars Limited | Administrative & support | 2021 |
| Aarin Group Limited | Real estate | 2024 |
| Aarna Specialities UK Limited | Wholesale & retail | 2003 |
| Aarnastec Limited | Professional & scientific | 2022 |
| Aarstone Ltd | Real estate | 2026 |
| Aarthy Construction Ltd | Construction | 2016 |
| Aarti Consulting Services Limited | Information & communication | 2017 |
| Aarti Mistry Ltd | Professional & scientific | 2020 |
| Aaru Star Ltd | Wholesale & retail | 2023 |
| Aarun Limited | Wholesale & retail | 2017 |
| Aarvaan Consultancy Ltd | Professional & scientific | 2021 |
| Aarvee Infosolutions Ltd | Information & communication | 2018 |
| Aarvi Consultancy Limited | Information & communication | 2023 |
| Aarvi Encon Resources Ltd | Administrative & support | 2018 |
| Aarvin Ltd | Real estate | 2022 |
| Aarvion Foods Ltd | Hospitality | 2025 |
| Aarya Property Limited | Hospitality | 2021 |
| AAS Homes (UK) Limited | Real estate | 2016 |
| AAS Management Consultants Limited | Professional & scientific | 2008 |
| AAS Management Ltd | Real estate | 2016 |
| Aasara & Co Ltd | Wholesale & retail | 2020 |
| Aashapuri Properties Limited | Wholesale & retail | 2025 |
| Aashi Enterprise Limited | Hospitality | 2023 |
| Aashirvaad Private Limited | Professional & scientific | 2022 |
| Aashiyana Properties Ltd | Real estate | 2018 |
| Aashray Care Homes Ltd | Health & social care | 2024 |
| Aashro Investments Limited | Real estate | 2017 |
| Aashyan Limited | Real estate | 2023 |
| Aasi Limited | Information & communication | 2009 |
| Aasta Consulting Private Limited | Professional & scientific | 2007 |
| Aasv Heating and Plumbing Ltd | Energy | 2024 |
| Aasv Limited | Real estate | 2022 |
| Aatami UK Ltd | Wholesale & retail | 2017 |
| Aatharam Construction Ltd | Construction | 2025 |
| Aathi Ltd | Wholesale & retail | 2013 |