| ASD Care Limited | Northampton | 2019 |
| ASD Community Hub CIC | London | 2024 |
| ASD Dental Limited | Bicester | 2024 |
| ASD Kuttler Ltd. | Farnham | 2019 |
| ASD Optometry Limited | Rochdale | 2021 |
| ASD Spiers Ltd | Exeter | 2019 |
| ASD Support Ltd | Loughborough | 2019 |
| Asd-Adhd-Assessors Ltd | Ruislip | 2020 |
| Asdc Solutions Ltd | London | 2014 |
| Asdebi Enterprise Limited | Basingstoke | 2023 |
| Asdent Ltd | Cleckheaton | 2014 |
| Asdybol Medics Limited | London | 2013 |
| ASE Audiology Limited | Wigan | 2015 |
| ASE Care Services Limited | Ilford | 2024 |
| ASE Hope Ltd | Greenford | 2022 |
| Asec City Care Ltd | Leicester | 2025 |
| Aseda Care Ltd | Milton Keynes | 2018 |
| Aseda Healthcare Limited | Leeds | 2018 |
| Aseda Nkoaa Company Limited | Liverpool | 2018 |
| Aseea Shuly Limited | Chelmsford | 2023 |
| Aseel Medical Ltd | Twickenham | 2015 |
| Aseeldens Limited | London | 2024 |
| Aseelhla Medical Ltd | Chelmsford | 2026 |
| Asek Medic Limited | Norbury | 2016 |
| Asel Healthcare Ltd | Peterborough | 2020 |
| Asela Limited | Warrington | 2022 |
| Asela Tree Limited | Chelmsford | 2024 |
| Asemed Limited | Harlow | 2026 |
| Asenta Aesthetics Ltd | Gerrards Cross | 2014 |
| Asepsis Medical Legal Services Limited | Middlesex | 2006 |
| Aset Hospital Limited | Prescot | 2012 |
| Asetica Clinic Ltd | Lisburn | 2024 |
| Asett Group Limited | Northamptonshire, Northampton | 2021 |
| ASF Care Limited | Harrow | 2019 |
| ASF Medical Limited | Norwich | 2026 |
| Asfr Limited | Bradford | 2017 |
| ASG Imaging Ltd | Gerrards Cross | 2017 |
| ASG Locum Limited | Birmingham | 2018 |
| ASG Medical Ltd | Dorking | 2024 |
| ASG Opco Limited | Leicester | 2025 |
| ASG Supplies Ltd | Renfrew | 2026 |
| ASG Surgical Ltd | London | 2024 |
| ASG- Alcohol Support Group- Orpington Community Interest Company | Orpington | 2025 |
| Asgard Dental Laboratory Ltd | Newmilns | 2016 |
| Asgard Medical Ltd | Bracknell | 2019 |
| Asgeria Associates Ltd | Maidenhead | 2017 |
| Asghar Medical Limited | Livingston | 2023 |
| Asgito Limited | London | 2018 |
| ASH Aesthetics Limited | Montrose | 2022 |
| ASH and ASH Limited | Clitheroe | 2019 |
| ASH Brook Independent Funeral Directors Limited | Tadley | 2013 |
| ASH Business Solutions Ltd | Batley | 2026 |
| ASH Care Devote Limited | Weymouth | 2023 |
| ASH Care Services Salisbury Ltd | Lutterworth | 2013 |
| ASH Childcare Ltd | Birmingham | 2025 |
| ASH Clanga International Ltd | London | 2021 |
| ASH Court Community Limited | Borehamwood | 1994 |
| ASH Croft Care Limited | Merseyside | 2005 |
| ASH Dent Limited | Salford | 2026 |
| ASH Dental Practice Limited | Northampton | 2010 |
| ASH Derma Ltd | London | 2023 |
| ASH Devadas Limited | Chelmsford | 2025 |
| ASH Developments Limited | Swanland | 2004 |
| ASH Grove Childcare Ltd | Harrow | 2018 |
| ASH Hall Limited | Stoke-On-Trent | 2010 |
| ASH Health Ltd | Huddersfield | 2023 |
| ASH Healthcare Limited | Glasgow | 2003 |
| ASH Healthcare Services Limited | Bury St. Edmunds | 2022 |
| ASH Hearing Limited | Leamington Spa | 2017 |
| ASH House Care Ltd | Stafford | 2020 |
| ASH Housing (Sussex) 2022 Limited | Derby | 2022 |
| ASH K Homes Ltd | Milton Keynes | 2017 |
| ASH Locum Ltd | Derby | 2025 |
| ASH Medical Consulting Limited | Essex | 2020 |
| ASH Medical Ltd | Bradford | 2025 |
| ASH Medical Solutions Ltd | Bolton | 2022 |
| ASH Medics Limited | London | 2015 |
| ASH Osteopathy Ltd | London | 2024 |
| ASH Paddock Homes Limited | Whitchurch | 1988 |
| ASH Park Childcare Services Ltd | Thirsk | 2021 |
| ASH Park Preschool Services Ltd | Thirsk | 2025 |
| ASH Pharm (Yorkshire) Ltd | Huddersfield | 2024 |
| ASH Physiotherapy & Sports Injury Clinic Ltd | Hythe | 2010 |
| ASH Pro Skin Ltd | London | 2021 |
| ASH Rehab Ltd | Enfield | 2021 |
| ASH RIJ Health Care Limited | Pinner | 2023 |
| ASH Secure Homes Ltd | Birmingham | 2025 |
| ASH Shah Ltd | Stevenage | 2016 |
| ASH Sharma Ltd | Solihull | 2011 |
| ASH Shifaa Medical Ltd | Bristol | 2020 |
| ASH Smiles Limited | London | 2022 |
| ASH Staffing Solutions Limited | Coventry | 2015 |
| ASH the Health Coach Ltd. | London | 2023 |
| ASH to Aura Limited | Glasgow | 2026 |
| ASH Tree Homecare Limited | Rochester | 2016 |
| ASH Wales Limited | Cardiff | 2006 |
| ASH Way EYE Services Limited | Newcastle | 2021 |
| ASH Wellness & Performance Ltd | Lincoln | 2017 |
| ASH Yorkshire Community Interest Company | Bradford | 2013 |
| Ash's Medical Organisation Limited | Rochdale | 2022 |