| Ansh Limited | Salford | 2023 |
| Anshei Shalom | London | 2003 |
| Anshino Ltd | London | 2026 |
| Anshree Medical Consulting Limited | Cardiff | 2025 |
| Anshz Ltd | Sale | 2020 |
| Ansirag UK Ltd | Prescot | 2025 |
| Ansl Medical Ltd | Altrincham | 2026 |
| Anslemdestiny Ltd | Warwick | 2018 |
| Ansmiles Ltd | Ilford | 2025 |
| Ansnate Limited | Wolverhampton | 2023 |
| Anson Care Limited | Truro | 2023 |
| Anson Care Services Limited | Redruth | 2017 |
| Anson Limited | Wilmslow | 2023 |
| Anson RFP Limited | Wirral | 2025 |
| Ansonette Ltd | Ellesmere Port | 2024 |
| Ansong Care Ltd | Manchester | 2019 |
| Ansons Care Ltd | Cardiff | 2018 |
| Ansor Dent Ltd | Bournemouth | 2020 |
| Ansra Health Care Ltd | Edinburgh | 2012 |
| Ansrit Complex Care Ltd | Gravesend | 2016 |
| Anss Locums Limited | Coventry | 2019 |
| Anssor Limited | Manchester | 2019 |
| Anstaar Limited | Wilmslow | 2021 |
| Anstew Limited | York | 2021 |
| Anstey Healthcare Ltd | Leicester | 2020 |
| Anstey Homecare Ltd | Leicester | 2025 |
| Anston House Limited | Northampton | 2019 |
| Anston Physiotherapy Limited | Sheffield | 2011 |
| Ansu Pienaar Occupational Therapy Ltd | Somersham | 2017 |
| Answ Limited | Cheadle | 2023 |
| Answer Project | West Lothian | 2000 |
| ANT & SIM Ltd | Swindon | 2017 |
| ANT and BEX Lodgings Limited | Wellingborough | 2019 |
| ANT Medical Ltd | Gateshead | 2013 |
| ANT Medical PA Ltd | London | 2025 |
| Anta R (Dorset) Ltd | Poole | 2019 |
| Antaa Health Care Ltd | Cardiff | 2019 |
| Antaeus Ltd | Manchester | 2019 |
| Antag Ltd | Liverpool | 2020 |
| Antalya IVF Ltd | Wolverhampton | 2025 |
| Antalya UK Aesthetics Ltd | Birmingham | 2024 |
| Antam Healthcare Limited | Stoke-On-Trent | 2016 |
| Antanas Macys Ltd | London | 2015 |
| Antao Physio Ltd | Sheffield | 2023 |
| Antar Limited | Gravesend | 2023 |
| Antara Health Limited | Manchester | 2023 |
| Antara Living Ltd | London | 2024 |
| Antara Surgical Services Ltd | Winchester | 2017 |
| Antarctica Limited | Manchester | 2007 |
| Antares Aesthetics Limited | Henley In Arden | 2021 |
| Antares Wellbeing Ltd | Orpington | 2018 |
| Antbring & Sharma Medical Ltd | Steyning | 2024 |
| Antcare Limited | Worcester | 2023 |
| Antcliff Partnership Ltd | Bath | 2016 |
| Ante Meridiem Limited | London | 2014 |
| Antegrity Services Ltd | Birmingham | 2024 |
| Antenatal Results & Choices (ARC) Limited | London | 2012 |
| Anterides Ltd | London | 2015 |
| Antero & Co Healthcare Ltd | London | 2018 |
| Anthaeum Limited | Belfast | 2020 |
| Anthea Thornton Occupational Therapy Services Limited | Dunmow | 2013 |
| ANTHEM777 Limited | Harlow | 2020 |
| Anther Limited | Halifax | 2014 |
| Anthill Global Limited | Ramsgate | 2012 |
| Antholex Limited | Dartford | 2022 |
| Anthon Compass Care Services Ltd | Hitchin | 2026 |
| Anthon&Gisele Ltd | Bicester | 2023 |
| Anthonia 'S Care Limited | London | 2015 |
| Anthonia 2 Ltd | Harlow, Essex | 2023 |
| Anthonia Childminder Limited | Waltham Cross | 2020 |
| Anthony & Esther Medical Services Ltd | Harlow | 2026 |
| Anthony & Partners Ltd | London | 2016 |
| Anthony Abhulimhen Healthcare Resources Limited | Leeds | 2018 |
| Anthony Adesanmi Ltd. | Croydon | 2017 |
| Anthony and Andy Ltd | Leicester | 2025 |
| Anthony and Derek CIC | London | 2026 |
| Anthony Andrews Coaching Ltd | Henley-In-Arden | 2020 |
| Anthony Betts Physiotherapy Limited | London | 2002 |
| Anthony Buckley Limited | Hayling Island | 2013 |
| Anthony China Limited | Radstock | 2014 |
| Anthony Consult Limited | Milton Keynes | 2025 |
| Anthony Elston Limited | Colchester | 1994 |
| Anthony G.Martin Limited | Cowbridge | 2008 |
| Anthony Gordon Consulting Ltd | Lincoln | 2022 |
| Anthony Healthcare Services Limited | London | 2024 |
| Anthony J Montague Ltd | Clitheroe | 2026 |
| Anthony James Care Limited | Southam | 2012 |
| Anthony Kamya Limited | Derby | 2022 |
| Anthony Kawesha Limited | Birmingham | 2012 |
| Anthony Lacey Psychotherapy Limited | Liverpool | 2014 |
| Anthony Larcombe Limited | Oxford | 2014 |
| Anthony LEE Ltd | Swindon | 2020 |
| Anthony Luddon Healing Ltd | Scarborough | 2023 |
| Anthony Mark O'Brien Limited | Manchester | 2015 |
| Anthony Mcwilliams Ltd | Leeds | 2015 |
| Anthony Nolan | Hampstead | 1989 |
| Anthony Nolan Trading Ltd | London | 1990 |
| Anthony Richardson Ltd | Clitheroe | 2020 |
| Anthony Roberts Training Ltd | Barrow In Furness | 1997 |
| Anthony Sakellariou Ltd | Lincoln | 2009 |