| AS1 Properties Ltd | Real estate | 2019 |
| ASA Cafe Ltd | Hospitality | 2025 |
| Asaam Estates Limited | Real estate | 2024 |
| Asab Construction Ltd | Professional & scientific | 2016 |
| Asabiyya Ltd | Real estate | 2026 |
| Asad & Sons Enterprises Limited | Wholesale & retail | 2025 |
| Asada Ltd | Wholesale & retail | 2025 |
| Asam Investment Ltd | Real estate | 2020 |
| Asanuk Ltd | Wholesale & retail | 2020 |
| Asap Group UK Limited | Administrative & support | 2026 |
| Asap Motors Ltd | Wholesale & retail | 2020 |
| Asashi Holdings Ltd | Financial services | 2023 |
| Asasyz Consultants Ltd | Professional & scientific | 2026 |
| Asaz Construction and Housing Ltd | Construction | 2025 |
| ASB97 Ltd | Construction | 2025 |
| Asberg Concept Ltd | Professional & scientific | 2020 |
| Asbex Ltd | Professional & scientific | 2025 |
| ASC Tax Advisers Limited | Professional & scientific | 2013 |
| Ascari Construction Ltd | Construction | 2014 |
| Ascena Partners Limited | Professional & scientific | 2025 |
| Ascend Edutech Ltd | Information & communication | 2026 |
| Ascend Property Group Limited | Construction | 2026 |
| Ascend Property Ventures Ltd | Real estate | 2025 |
| Ascend Services Ltd | Real estate | 2016 |
| Ascendia Consultancy Ltd | Professional & scientific | 2025 |
| Ascendro Consulting Limited | Information & communication | 2026 |
| Ascent International Ltd | Wholesale & retail | 2022 |
| Ascent Legacy Group Ltd | Real estate | 2026 |
| Ascentiq Solutions Limited | Information & communication | 2012 |
| ASE Care Services Limited | Health & social care | 2024 |
| ASE Security & Electrical Ltd | Manufacturing | 2024 |
| Asel 49 Limited | Hospitality | 2025 |
| Asender Bike Wear Ltd | Wholesale & retail | 2025 |
| Asep Property Management Ltd | Real estate | 2024 |
| Aseyra Ltd | Information & communication | 2019 |
| ASG Construction Ltd | Construction | 2025 |
| ASG Flooring Limited | Construction | 2002 |
| ASG Food Services UK Ltd | Manufacturing | 2026 |
| ASG Maintenance Services Ltd | Construction | 2019 |
| ASG Retail Ltd | Wholesale & retail | 2025 |
| ASH & Co Properties Ltd | Real estate | 2023 |
| ASH Bella Ltd | Financial services | 2025 |
| ASH Construction (London) Ltd | Construction | 2020 |
| ASH DRY Cleaners Ltd | Other services | 2017 |
| ASH Events Ltd | Extraterritorial | 2021 |
| ASH Global Services Ltd | Transport & logistics | 2020 |
| Ash-Shakur Ltd | Wholesale & retail | 2023 |
| ASH99 Ltd | Wholesale & retail | 2026 |
| Asha Affi Ltd | Health & social care | 2022 |
| Asha Estates Limited | Real estate | 2024 |
| Ashadur Holdings Ltd | Financial services | 2022 |
| Ashar Brooks Ltd | Professional & scientific | 2014 |
| Ashavi Materials and Technology Consulting Ltd | Information & communication | 2026 |
| Ashavish Limited | Hospitality | 2025 |
| Ashbee Lodge Residents Association Limited | Households | 2012 |
| Ashbridge Recruitment Ltd | Professional & scientific | 2025 |
| Ashburn Nominees Limited | Professional & scientific | 2007 |
| Ashcoe Holdings Limited | Financial services | 2015 |
| Ashcroft Living Limited | Real estate | 2025 |
| Ashdon Properties Limited | Real estate | 2016 |
| Asheeq Ltd | Arts & recreation | 2018 |
| Asher Gables Limited | Real estate | 2022 |
| Ashfarma Limited | Professional & scientific | 2022 |
| Ashford Coffee Ltd | Hospitality | 2015 |
| Ashford Group London Limited | Real estate | 2015 |
| Ashford Holdings Limited | Other services | 2015 |
| Ashford Investments London Ltd | Real estate | 2024 |
| Ashford Lettings Limited | Real estate | 2024 |
| Ashford of Essex Limited | Real estate | 2012 |
| Ashford Therapyhub Ltd | Health & social care | 2024 |
| Ashfords Partnership LLP | | 2002 |
| Ashgrove Accountants Ltd | Professional & scientific | 2012 |
| Ashgrove Properties (UK) Limited | Real estate | 1999 |
| Ashh Estates Ltd | Real estate | 2026 |
| Ashh Ltd | Real estate | 2026 |
| Ashleigh Solicitors Ltd | Professional & scientific | 2023 |
| Ashley Hotels Astors Limited | Hospitality | 2013 |
| Ashley PVT Ltd | Wholesale & retail | 2023 |
| Ashmina Properties Limited | Real estate | 2022 |
| Ashni Consultancy Ltd | Professional & scientific | 2022 |
| Ashni Global Ltd | Administrative & support | 2019 |
| Ashni Motors Ltd | Wholesale & retail | 2025 |
| Ashni Properties Ltd | Real estate | 2026 |
| Ashni Services Ltd | Administrative & support | 2023 |
| Ashnikha Property Ltd | Real estate | 2022 |
| Ashqai Logistics Ltd | Transport & logistics | 2024 |
| Ashriya Ltd | Professional & scientific | 2025 |
| Ashss Ltd | Real estate | 2025 |
| Ashton Coopers & Co Ltd | Professional & scientific | 2006 |
| Ashton Edwards Properties Ltd | Real estate | 2019 |
| Ashton Investments Holding Ltd | Real estate | 2014 |
| Ashton London Limited | Wholesale & retail | 2016 |
| Ashton Portal Limited | Wholesale & retail | 2016 |
| Ashton Support Services Ltd | Administrative & support | 2019 |
| Ashtrad Aurelius Ltd | Real estate | 2024 |
| Ashtrad Investments Ltd | Real estate | 2016 |
| Ashtrad Properties LLP | | 2019 |
| Ashtrad Realty Limited | Real estate | 2026 |
| Ashtrad Retail Ltd | Wholesale & retail | 2016 |
| Ashtyres Services Ltd | Wholesale & retail | 2025 |