| ASH Takeaway Ltd | Hospitality | 2025 |
| Ashall Capital Limited | Real estate | 2019 |
| Ashall Developments (South Lakes) Limited | Households | 2020 |
| Ashall Hadrian Limited | Real estate | 1997 |
| Ashall Hillside Limited | Real estate | 1998 |
| Ashall Hospitality (Blackpool) LLP | | 2024 |
| Ashall Hospitality (Indigo) Limited | Hospitality | 2021 |
| Ashall Hospitality (MB) LLP | | 2022 |
| Ashall Hospitality (South Lakes) 1 Limited | Hospitality | 2025 |
| Ashall Hospitality (South Lakes) LLP | | 2025 |
| Ashall Investments Limited | Professional & scientific | 1998 |
| Ashall Land Limited | Construction | 2012 |
| Ashall Living Limited | Construction | 2020 |
| Ashall Projects (Barrow) Limited | Construction | 2012 |
| Ashall Projects (Blackpool) Limited | Households | 2021 |
| Ashall Projects (MB) Limited | Construction | 2013 |
| Ashall Projects (NJS) Limited | Construction | 2012 |
| Ashall Projects Limited | Real estate | 2011 |
| Ashall Property Limited | Real estate | 2004 |
| Ashall Residential Limited | Construction | 2015 |
| Ashall Sandiway NO.1 Limited | Real estate | 2016 |
| Ashall Sandiway NO.2 Limited | Real estate | 2016 |
| Ashall Walton Limited | Real estate | 2016 |
| Ashbach Ltd | Professional & scientific | 2019 |
| Ashbrooks Limited | Wholesale & retail | 2007 |
| Ashburger Consulting Limited | Administrative & support | 2025 |
| Ashburton Landfill Limited | Professional & scientific | 1991 |
| Ashcombe Consultancy Limited | Professional & scientific | 2007 |
| Ashcroft Auto Centre Ltd | Wholesale & retail | 2005 |
| Ashcroft Guest Lettings Limited | Real estate | 2009 |
| Ashcroft Guest Limited | Real estate | 2003 |
| Ashcrofts Mini Travel Ltd | Transport & logistics | 2009 |
| Ashdale One Ltd | Wholesale & retail | 2025 |
| Ashe Consultants Limited | Information & communication | 2015 |
| Ashebrook Ltd | Mining & quarrying | 1997 |
| Ashenden Consulting Limited | Administrative & support | 2013 |
| Ashford Piano Consultancy Ltd | Administrative & support | 2014 |
| Ashlee Louise Consultancies Limited | Professional & scientific | 2016 |
| Ashley Court (Appleton) Management Limited | Households | 1974 |
| Ashley Kneale Associates Ltd | Financial services | 2013 |
| Ashley Removals Ltd | Transport & logistics | 2023 |
| Ashling Commercial Limited | Real estate | 2026 |
| Ashling Group Limited | Real estate | 2020 |
| Ashling Holdings Limited | Real estate | 2020 |
| Ashling Holdings NO. 2 Ltd | Real estate | 2024 |
| Ashling Holdings NO. 3 Limited | Real estate | 2026 |
| Ashling Management Limited | Real estate | 2020 |
| Ashmole Electrical Limited | Construction | 2023 |
| Ashway Park (Management Company) Limited | Households | 2023 |
| Ashwood Building Ltd | Real estate | 2001 |
| Ashwood Home Care Limited | Professional & scientific | 2001 |
| Ashworth Process Control Limited | Information & communication | 1997 |
| ASI Electrical Limited | Professional & scientific | 2016 |
| Asics UK Limited | Wholesale & retail | 1987 |
| Asinile Limited | Real estate | 2000 |
| Asis Tech Limited | Information & communication | 2026 |
| ASJ Quantity Surveying Ltd | Professional & scientific | 2021 |
| Asja Holdings Limited | Professional & scientific | 2026 |
| ASK Business Consultancy Limited | Information & communication | 2018 |
| ASK4TAPE Limited | Wholesale & retail | 2008 |
| Askanee Group Ltd | Financial services | 2025 |
| Askham OIL Supplies Limited | Extraterritorial | 1959 |
| ASL Aviation Ltd | Transport & logistics | 2008 |
| ASL Catering Agency Limited | Administrative & support | 2016 |
| ASL Security Consultancy Ltd | Education | 2022 |
| Aslan One Ltd | Information & communication | 2016 |
| Aslr Limited | Information & communication | 2025 |
| ASM3 Engineers and Consultants Limited | Professional & scientific | 2024 |
| ASP Pro Limited | Information & communication | 2018 |
| Aspace Properties Limited | Real estate | 2023 |
| Aspect Hair and Beauty Limited | Other services | 2002 |
| Aspect Offshore Ltd | Professional & scientific | 2026 |
| Aspen White Limited | Health & social care | 2014 |
| Aspenwood Grange (Management Company) Limited | Professional & scientific | 2021 |
| Aspire Acquisitions Ltd | Real estate | 2023 |
| Aspire Avenue Creative Ltd | Professional & scientific | 2024 |
| Aspire Car Sales Ltd | Wholesale & retail | 2024 |
| Aspire Care & Support Ltd | Health & social care | 2025 |
| Aspire Computers Limited | Information & communication | 2013 |
| Aspire Cost Engineering Limited | Administrative & support | 2007 |
| Aspire PM Services Ltd | Professional & scientific | 2026 |
| Aspire Procurement Training Ltd | Administrative & support | 2012 |
| ASR Travel Group Limited | Financial services | 2019 |
| Assd Media Limited | Information & communication | 2016 |
| Asset HR Consultancy Ltd | Administrative & support | 2024 |
| Asset Protection Group (Holdings) Limited | Administrative & support | 2022 |
| Asset Protection Group (UK Holdings) Limited | Other services | 2020 |
| Asset Protection Group Limited | Financial services | 2015 |
| ASSET74 Ltd | Professional & scientific | 2025 |
| Assist Claims Limited | Professional & scientific | 2001 |
| Assisted Property Limited | Real estate | 2024 |
| Association for Family and Systemic Psychotherapy Ltd | Health & social care | 1995 |
| Assura Tax Limited | Extraterritorial | 2015 |
| Assured Quality Management Systems Ltd | Other services | 2022 |
| AST Properties (Wirral) Limited | Real estate | 2016 |
| Astbury Gardens (Management Company) Limited | Households | 2024 |
| Astbury Media Ltd | Professional & scientific | 2020 |
| Asteria International Ltd | Administrative & support | 2020 |
| Asterion Europe Limited | Information & communication | 2014 |
| Asteroid Limited | Administrative & support | 2004 |