| Accomplish Group Contract Management Limited | Halesowen | 2003 |
| Accomplish Group Cymru Lifestyles South Limited | Halesowen | 2007 |
| Accomplish Group Employee Limited | Halesowen | 2015 |
| Accomplish Group Lifestyles (South West) Limited | Halesowen | 2006 |
| Accomplish Group Lifestyles Limited | Halesowen | 2003 |
| Accomplish Group Limited | Halesowen | 1987 |
| Accomplish Group Property Limited | Halesowen | 2003 |
| Accomplish Group Residential Care Limited | Halesowen | 2007 |
| Accomplish Group Specialist Care Limited | Halesowen | 2011 |
| Accomplish Group Support Limited | Halesowen | 1987 |
| Accomplished Care Limited | Gosport | 2021 |
| Accomplished Care PVT Ltd | Preston | 2025 |
| Accord Agreement & Support Ltd | Guisborough | 2009 |
| Accord Care Homes Ltd | Stockport | 2022 |
| Accord Counselling Ltd. | Chorley | 2016 |
| Accord Dental Services Ltd | Basingstoke | 2024 |
| Accord EYE Care Ltd | Dundee | 2024 |
| Accord Hospice | Paisley | 1985 |
| Accord Housing & Care Ltd | Oldham | 2023 |
| Accord Medical Group Ltd | London | 2025 |
| Accord Medical Limited | Bridgwater | 2011 |
| Accord Medicare Limited | Southampton | 2015 |
| Accord Venture Limited | London | 2018 |
| Accordant Care Limited | Torquay | 2023 |
| Accordant Healthcare Limited | Manchester | 2016 |
| Accordia Care Limited | Lewes | 2019 |
| Accordia Group Limited | Lewes | 2018 |
| Accordia Supported Living Service Lincolnshire Limited | Lewes | 2024 |
| Accordia Supported Living Services Limited | Lewes | 2018 |
| Accorn Healthcare Consulting Ltd | Northampton | 2020 |
| Accountable Care Enterprise Limited | Colchester | 2017 |
| Accountablemi Ltd | London | 2025 |
| Accoyya Limited | Birmingham | 2024 |
| Accra Communities Development Foundation | Morden | 2016 |
| Accredilink Community Response Taskforce CYF | Denbigh | 2020 |
| Accredited Aesthetic Training Limited | Liverpool | 2014 |
| Accredo Support and Development Ltd. | Coventry | 2003 |
| Accrington Health Suite Ltd | Accrington | 2023 |
| Accrington Prime Medical Limited | Blackburn | 2015 |
| Accrington Road (Community) Centre Ltd | Blackburn | 2013 |
| ACCTS44 Limited | Slough | 2023 |
| Accu-Set Healthcare Ltd | Newark | 2018 |
| Accu-Set Limited | Corby | 2013 |
| Accu.Med Limited | Leeds | 2017 |
| Accucheck Ltd | Altrincham | 2023 |
| Accucheck Services Ltd | Birmingham | 2019 |
| Accuheart Ltd | London | 2019 |
| Acculabs Diagnostics UK Limited | Billingham | 2010 |
| Acculabs Ltd | Billingham | 2026 |
| Accumulated Health Ltd | London | 2026 |
| Accupharm Limited | Royston | 2024 |
| Accura Medical Consulting Ltd | Birmingham | 2015 |
| Accurad Imaging Limited | Waterlooville | 2026 |
| Accuradiology Ltd | Worcester Park | 2021 |
| Accurate Care Group Limited | Manchester | 2024 |
| Accurate Care Services Limited | Barking | 2013 |
| Accurate Diagnostics Ltd | Glasgow | 2015 |
| Accurate Health Limited | Basildon | 2024 |
| Accuratear Ltd | Aylesbury | 2019 |
| Accure Health Consultancy Ltd | Bristol | 2015 |
| Accuro (Care Services) | Saffron Walden | 2002 |
| Accuro Wellbeing Limited | Ashford | 2020 |
| Accurocare Ebbw Vale Limited | Aylesbury | 2023 |
| Accurocare Risca Limited | Haddenham | 2019 |
| Accurocare ST. John's Home Limited | Aylesbury | 2015 |
| Accurocare Wrexham Limited | Aylesbury | 2022 |
| Accurocare Zoar Care Home Limited | Aylesbury | 1988 |
| Accusense Consultancy Ltd | Coldfield | 2023 |
| Accutech Limited | Exeter | 2013 |
| Accuvein Ltd | Middleton | 2025 |
| Accuvis Radiology Ltd | Norwich | 2021 |
| Accuvision Limited | London | 2001 |
| Accybjj.Ltd Limited | Accrington | 2020 |
| ACD Care Ltd | Didcot | 2019 |
| ACD Podiatry Ltd | Hemel Hempstead | 2012 |
| ACD Psychiatry Limited | London | 2024 |
| Acdc Holdings Ltd | Bishop Auckland | 2022 |
| Acden Limited | Upper Norwood | 2010 |
| Ace (Anglia) Limited | Stowmarket | 2013 |
| Ace 24 International Ltd | Colchester | 2019 |
| Ace Africa (UK) | London | 2003 |
| Ace Anaesthetic Ltd | Manchester | 2013 |
| Ace Assessments Ltd | Corby | 2018 |
| Ace Care 4 U Limited | Nottingham | 2011 |
| Ace Care Consult Ltd | Milton Keynes | 2021 |
| Ace Care Homes Ltd | Cardiff | 2025 |
| Ace Care Professionals Limited | Winsford | 2012 |
| Ace Care Services Limited | Reading | 2021 |
| Ace Childcare Ltd | Leeds | 2023 |
| Ace Childminding T/A Ace Nursery Ltd | Tamworth | 2022 |
| Ace Childrens Occupational Therapy Limited | Crondall | 2013 |
| Ace Clinical Solutions Ltd | Harlow | 2026 |
| Ace Club Sheffield CIC | Sheffield | 2026 |
| Ace Community Enterprises Limited | Cardiff | 2014 |
| Ace Community Services Limited | Banstead | 2013 |
| Ace Consultancy Services Limited | Cardiff | 2003 |
| Ace Consulting and Associates Ltd | Leeds | 2019 |
| Ace Corporate Fitness Ltd | Camberley | 2024 |
| Ace Courses Limited | Stanmore | 2023 |
| Ace DC Ltd | Leicester | 2019 |