| Asmaa Almaliky Ltd | Swansea | 2026 |
| Asmaas Chasmaas Ltd | Loughton | 2019 |
| Asmait Consultants Limited | London | 2005 |
| Asmal Y Y Limited | Dewsbury | 2010 |
| Asmara Healthcare Ltd | Middlesbrough | 2023 |
| Asmara Resources Limited | North Finchley | 2015 |
| Asmarina Smile Limited | Hampton | 2019 |
| Asmat Ltd | Nottingham | 2013 |
| Asmawa Healthcare Consultancy Limited | Reading | 2019 |
| Asma’S Eyecare Ltd | Birmingham | 2024 |
| Asmhh Limited | Nottingham | 2020 |
| Asmi Wellness Limited | Redhill | 2025 |
| Asmie Ltd | Birmingham | 2020 |
| Asmo Care Limited | Dagenham | 2020 |
| Asms (AL Shafi Medical & Surgical) Ltd | Datchet | 2023 |
| Asmt Group Limited | Reading | 2021 |
| Asmus Limited | Barnsley | 2018 |
| ASN Health Care Ltd | Wimbledon | 2022 |
| ASN Health Limited | Birmingham | 2017 |
| ASN Healthcare Staffing Ltd | Leeds | 2023 |
| ASN Medical Services Limited | Dudley | 2010 |
| ASN Preston Limited | Preston | 2025 |
| Asnan Limited | Birmingham | 2026 |
| Asnani Ltd | Pinner | 2019 |
| Asnavitas Limited | London | 2012 |
| Asnoki Limited | Carlisle | 2025 |
| Asnp Limited | Kingston Upon Thames | 2011 |
| ASO Care Ltd | St. Helens | 2023 |
| ASO Healthcare Limited | Sale | 2023 |
| ASO Kenny Ltd | Belfast | 2023 |
| Aso&Co Ltd | Manchester | 2022 |
| Asociacion DE Quiteños EN EL Reino Unido CIC | London | 2025 |
| Asociacion Latinoamericana E Iberica DE Radiocirugia (Alair) Ltd | London | 2024 |
| Asociacion Mira Reino Unido Ltd | Feltham | 2012 |
| Asofiei Digital Design Ltd | London | 2021 |
| Asohp Limited | Billingham | 2025 |
| Asoka Medical Services Limited | London | 2019 |
| Asokan Anaesthetics Limited | Stockton-On-Tees | 2009 |
| Asona Consulting Ltd | Crawley | 2020 |
| Asonaroh Limited | Colchester | 2019 |
| Asos Medical Services Ltd | London | 2023 |
| Asota Services Limited | Orpington | 2014 |
| Asothem Ltd | London | 2026 |
| Asotom Healthcare Limited | Ashington | 2023 |
| Asowa Healthcare Solutions Ltd | Dagenham | 2019 |
| ASP Dental Ltd | Wilmslow | 2025 |
| ASP Enterprises Leicester Limited | Leicester | 2014 |
| ASP Eyecare Ltd | Blackburn | 2023 |
| ASP Healthcare Ltd | Birmingham | 2025 |
| ASP Healthcare Services Ltd | Gloucester | 2024 |
| ASP Independent Living Limited | Portland | 1997 |
| ASP Optics Ltd | Bolton | 2023 |
| ASP Practice Limited | Brighton | 2016 |
| ASP14 Ltd | Dewsbury | 2019 |
| ASP17 Ltd | Blackpool | 2021 |
| ASP3NCER Medical Imaging Ltd | London | 2022 |
| ASPACE2 CIC | Eglinton | 2012 |
| ASPACE2 Multisensory Centre Limited | Eglinton, | 2023 |
| Aspatria Dreamscheme Limited | Wigton | 2010 |
| Aspc Consultancy Ltd | Sutton | 2021 |
| Aspect Autism Consultancy Ltd | Glasgow | 2024 |
| Aspect Care Group Ltd | Bournemouth | 2026 |
| Aspect Care Ltd | Slough | 2012 |
| Aspect Care Services Ltd | Mitcham | 2023 |
| Aspect Domiciliary Care Limited | Bournemouth | 2008 |
| Aspect Healthcare Group Limited | Newcastle Upon Tyne | 2024 |
| Aspect Healthcare Services Limited | Newcastle Upon Tyne | 2024 |
| Aspect Housing and Support Limited | Birmingham | 2021 |
| Aspect Housing Ltd | Birmingham | 2011 |
| Aspect Supported Living Limited | Birmingham | 2020 |
| Aspects Adult Autism Psychology Ltd | Bristol | 2018 |
| Aspects Care Limited | Birmingham | 2004 |
| Aspects Childcare Limited | Chelmsford | 2025 |
| Aspects Lavender Ltd | London | 2026 |
| Aspects Moorlands Care Ltd | London | 2024 |
| Aspects of Yoga Limited | Purley-On-Thames | 2013 |
| Aspects of Yoga UK Limited | Purley-On-Thames | 2013 |
| Aspects Together CIC | Tonbridge | 2023 |
| Aspej Services Ltd | Bromley | 2025 |
| Aspen Belmont Limited | Berkshire | 2007 |
| Aspen Care Homes Ltd | Walsall | 2025 |
| Aspen Care Limited | Watford | 2005 |
| Aspen Court Care Limited | Slough | 2020 |
| Aspen Day Care Limited | Brierley Hill | 2025 |
| Aspen Dental Care Ltd. | Eastbourne | 2015 |
| Aspen Dental Consultancy Ltd | London | 2024 |
| Aspen Grove Limited | Enfield | 2025 |
| Aspen Healthcare Limited | Epsom | 1997 |
| Aspen Hill Healthcare Limited | Leeds | 2018 |
| Aspen House Limited | Derby | 2002 |
| Aspen Lodge Care Ltd | Kingston Upon Thames | 2023 |
| Aspen Lodge Leicester Limited | Burton-On-Trent | 2021 |
| Aspen MED Ltd | Berkhamsted | 2023 |
| Aspen Medical Aesthetics Ltd | Denny | 2024 |
| Aspen Medical Clinics Ltd | Egham | 2026 |
| Aspen Medical Services Ltd | London | 2016 |
| Aspen Medical UK Limited | Isleworth | 2010 |
| Aspen Place Ltd | Hove | 2007 |
| Aspen Rise Limited | Birmingham | 2025 |
| Aspen Tower Aphrodite Propco Limited | London | 2003 |