| Asda Express Limited | Wholesale & retail | 2001 |
| Asda Financial Services Limited | Professional & scientific | 2002 |
| Asda Foodservice Limited | Administrative & support | 2017 |
| Asda Holdco 2 Limited | Financial services | 2023 |
| Asda Holdco Limited | Financial services | 2023 |
| Asda Propco Limited | Real estate | 2023 |
| Asda Quest Trustees Limited | Extraterritorial | 1997 |
| Asda Southbank Limited | Other services | 1992 |
| Asda Supermarkets Limited | Professional & scientific | 2001 |
| Asdel Limited | Professional & scientific | 2008 |
| ASE Development Group Limited | Construction | 2025 |
| ASE General Cleaning Ltd Company Limited | Water & waste | 2015 |
| Aseda Healthcare Limited | Health & social care | 2018 |
| Aseel Construction & Landscaping Ltd | Construction | 2023 |
| Aselltd Ltd | Wholesale & retail | 2026 |
| Asenco Limited | Construction | 2018 |
| Asensi Cheetham Limited | Real estate | 2021 |
| Asera Ltd | Professional & scientific | 2013 |
| Asertus Limited | Construction | 2017 |
| Asey Ltd | Construction | 2025 |
| ASF Trans Ltd | Transport & logistics | 2026 |
| Asfeebaba Limited | Wholesale & retail | 2022 |
| ASG IT Services Limited | Information & communication | 2019 |
| ASG Scaffolding (Yorkshire) Ltd | Construction | 2025 |
| ASG Solutions Limited | Information & communication | 2011 |
| Asgard Fire & Security Ltd | Construction | 2025 |
| Asghar Estates Ltd | Real estate | 2023 |
| ASH Bazaar Ltd | Wholesale & retail | 2025 |
| ASH Cottage Prop Co Limited | Hospitality | 2015 |
| ASH Green Systems Limited | Information & communication | 2023 |
| ASH Grove Flats Residential Management Limited | Households | 2004 |
| ASH Hill Consulting Ltd | Professional & scientific | 2016 |
| ASH Integrated Services Limited | Construction | 2019 |
| ASH Motors Ltd | Wholesale & retail | 2011 |
| ASH Newman HGV Mechanic Ltd | Manufacturing | 2020 |
| ASH Properties & Holdings Ltd | Real estate | 2023 |
| ASH Properties (Leeds) Ltd | Real estate | 2022 |
| ASH Quorum Ltd | Wholesale & retail | 2021 |
| ASH Tree Holdings Limited | Hospitality | 2020 |
| Ash-Son Technologies (UK) Limited | Information & communication | 2018 |
| Asham & Co Contracting Limited | Financial services | 2017 |
| Ashberry of York Limited | Extraterritorial | 2014 |
| Ashbourne Solutions Ltd | Administrative & support | 2020 |
| Ashburton Road Services Limited | Professional & scientific | 1902 |
| Ashbury Scaffolding Ltd | Administrative & support | 2025 |
| Ashby & Ashby Ltd | Real estate | 2019 |
| Ashby Moody Limited | Information & communication | 2014 |
| Ashcare Private Ltd | Health & social care | 2016 |
| Ashcott Projects Ltd | Construction | 2018 |
| Ashcott Properties Ltd | Real estate | 2020 |
| Ashcroft Anaesthetic Services Limited | Health & social care | 2023 |
| Ashcroft Instruments Limited | Manufacturing | 2015 |
| Ashdeane Properties Ltd | Real estate | 2023 |
| Ashdown Works Ltd | Real estate | 2024 |
| Ashen One Ltd | Information & communication | 2023 |
| Ashfield Electrical Contracting Ltd | Construction | 2017 |
| Ashfield Grounds Maintenance Limited | Real estate | 2009 |
| Ashfield House Freehold Limited | Households | 2011 |
| Ashfield Park Management (Headingley) Limited | Households | 1973 |
| Ashfield Park Management Company Limited | Households | 2002 |
| Ashfield Project Services Limited | Real estate | 2016 |
| Ashfield Properties (Leeds) Limited | Real estate | 2003 |
| Ashfield Sheet Metal Limited | Professional & scientific | 2014 |
| Ashford Prison Services Holdings Limited | Financial services | 2001 |
| Ashford Prison Services Limited | Administrative & support | 2001 |
| Ashfords Accountants Ltd | Professional & scientific | 2019 |
| Ashfords Property Limited | Real estate | 2019 |
| Ashgrove North Holdings Ltd | Real estate | 2026 |
| Ashgrove Retail Ltd | Wholesale & retail | 2022 |
| Ashkan Animal Health (UK) Limited | Professional & scientific | 2012 |
| Ashl Lesuire Limited | Hospitality | 2026 |
| Ashley & Charlotte Ltd | Transport & logistics | 2023 |
| Ashley Bolser Agency Limited | Administrative & support | 2003 |
| Ashley Design Consultants Limited | Professional & scientific | 2005 |
| Ashley Stores Ltd | Wholesale & retail | 2026 |
| Ashley UK Properties Ltd | Real estate | 2025 |
| Ashley Wheat Design Ltd | Information & communication | 2018 |
| Ashling Donnelly Aesthetic Clinic Limited | Health & social care | 2018 |
| Ashling Donnelly Skincare Limited | Health & social care | 2021 |
| Ashlow Kirjay | Financial services | 2015 |
| Ashmeade Software Ltd | Information & communication | 2025 |
| Ashmount Mews (Haworth) Management Company Limited | Households | 2005 |
| Ashmount Short Stays Ltd | Hospitality | 2025 |
| Ashover Project Investments Limited | Administrative & support | 2019 |
| Ashoxier Ltd | Wholesale & retail | 2025 |
| Ashraf Pound Express Ltd | Wholesale & retail | 2026 |
| Ashridge Contractors Limited | Construction | 1994 |
| Ashridge Ventures Limited | Real estate | 2019 |
| Ashton Clifton Partners Ltd | Information & communication | 2024 |
| Ashton Property Investments LLP | | 2012 |
| Ashton Road Developments Limited | Real estate | 2025 |
| Ashtree Canine Boarding & Rehabilitation Centre Ltd | Other services | 2021 |
| Ashtree Construction Ltd | Construction | 2021 |
| Ashtree Fine Developments (Ripponden) Limited | Construction | 2014 |
| Ashtrees Limited | Agriculture & fishing | 2003 |
| Ashur Group Ltd | Construction | 2023 |
| Ashwell Homes Limited | Construction | 2018 |
| Ashwood GRP Limited | Construction | 2014 |
| Ashwood Management (Hants) Limited | Real estate | 2009 |
| Ashwood Systems Services Ltd | Construction | 2007 |