| Azams Healthcare Ltd | Blackburn | 2026 |
| Azan Home Care Limited | Bedford | 2023 |
| Azan Medics Limited | Bedford | 2024 |
| Azanimo Ltd | Market Drayton | 2012 |
| Azanis Ltd | Dunstable | 2016 |
| Azara Aesthetics Limited | London | 2025 |
| Azara Care Ltd | London | 2015 |
| Azara International Limited | Tunbridge Wells | 2025 |
| Azarbod Medical Ltd | Altrincham | 2018 |
| Azari Care Services Limited | Bromley | 2014 |
| Azaria Care Services Limited | Stoke-On-Trent | 2015 |
| Azariah Limited | London | 2015 |
| Azariah Medical Partnerships Ltd | Brentwood | 2018 |
| Azat Services Ltd | Barnstaple | 2023 |
| Azaz ALI Limited | Belfast | 2024 |
| Azaz Consultants Limited | London | 2019 |
| AZB Health Limited | Dewsbury | 2024 |
| AZC Allergy Limited | Wilmslow | 2025 |
| Azcorp Ltd | Burton Upon Trent | 2023 |
| Azden Limited | Halifax | 2009 |
| Azdental Ltd | Newton Abbot | 2023 |
| AZE Medical Reporting Limited | Hackney | 2023 |
| Azee Ltd | Doncaster | 2017 |
| Azeem Healthcare Ltd | Bradford | 2022 |
| Azeem Healthcare Services Ltd | Derby | 2012 |
| Azeem Medical Services Ltd | London | 2023 |
| Azer Medical Limited | Worcester | 2024 |
| Azevedo & Silva Limited | Stourbridge | 2020 |
| Azfeer & Alvina Ltd | London | 2024 |
| AZH Health Limited | Cheadle | 2024 |
| Azhar Associates Ltd | Gloucester | 2025 |
| Azhar Atcha Limited | Bolton | 2015 |
| Azhar Medical Services Limited | Croydon | 2016 |
| Azhar Saleem Healthcare Ltd | London | 2014 |
| Azhar Sheikh Ltd | Glasgow | 2023 |
| Azharhealth Ltd | Peterborough | 2026 |
| Azhariqbal Ltd | Birmingham | 2021 |
| Azhi Audiology Limited | London | 2022 |
| AZI Health Limited | Pinner | 2021 |
| Azia Associates Ltd | Altrincham | 2021 |
| Azidale Ltd | Chichester | 2022 |
| Aziel Care Ltd | Swindon | 2026 |
| Azietek Ltd | London | 2023 |
| Azifa Optical Ltd | Bolton | 2023 |
| Azik Limited | Romford | 2021 |
| Azim Medical Limited | St. Asaph | 2016 |
| Azimo Services Limited | London | 2016 |
| Azimuth Programming Limited | Sheffield | 2010 |
| Azimzadeh Aesthetics Ltd | London | 2020 |
| Azinas (Bristol) Limited | Bristol | 2016 |
| Azinheira Limited | London | 2022 |
| Azion Holdings Limited | Milton Keynes | 2025 |
| Azira Aesthetics Limited | Newport | 2016 |
| Aziz & Khanom Co Ltd | Romford | 2021 |
| Aziz and Family Ltd | Paisley | 2023 |
| Aziz Dent Ltd | Nottingham | 2010 |
| Aziz Gulamhusein Urology Ltd | Stockport | 2021 |
| Aziz Medical Limited | Beckenham | 2002 |
| Aziz Pharma Solutions Ltd | Birmingham | 2014 |
| Aziz Sheikh Ltd | Edinburgh | 2019 |
| Aziza & Sons Ltd | London | 2023 |
| Aziza KP Limited | Bolton | 2015 |
| Aziza Medica Limited | London | 2016 |
| Azizah Hossen Ltd | London | 2025 |
| Azize Company Ltd | Birmingham | 2017 |
| AZIZGP88 Limited | Rochdale | 2021 |
| Azizos 18 Ltd | Wakefield | 2018 |
| Azizupperlimb Ltd | Birmingham | 2023 |
| Azizwani Limited | Manchester | 2015 |
| AZJ Healthcare Services Limited | Northampton | 2006 |
| AZK Optical Ltd | Rochdale | 2019 |
| AZK Services Ltd | Altrincham | 2024 |
| Azka Investment Group Ltd | Birmingham | 2024 |
| AZL Healthcare Ltd | Batley | 2025 |
| Azlaan Medical Limited | Bury | 2025 |
| Azlan Medical Services Ltd | Manchester | 2026 |
| AZM Enterprises Limited | Mitcham | 2011 |
| AZM Investments Limited | Motherwell | 2017 |
| AZM Medical Enhancement Limited | Chelmsford | 2020 |
| AZM Medical Solutions UK Ltd | Caerphilly | 2019 |
| Azmah Ltd | Newcastle Upon Tyne | 2018 |
| Azmar MD Ltd | London | 2018 |
| Azmat Lodge Care Home Ltd | Nottingham | 2024 |
| Azmes Limited | Broadstairs | 2024 |
| Azmy Sanders Ltd | Sheffield | 2019 |
| AZN Consulting Ltd | Feltham | 2023 |
| AZN Medical Ltd | London | 2021 |
| Aznostics Teleradiology Limited | Iver | 2022 |
| AZO Care Ltd | London | 2018 |
| AZO Health Limited | Harlow | 2026 |
| Azoa Therapy Ltd | London | 2024 |
| Azom Medics Ltd | Bedford | 2025 |
| Azomadiz Limited | Washington | 2011 |
| Azoya H Healthcare Limited | London | 2025 |
| Azoz Limited | Carmarthen | 2025 |
| AZR Locums Ltd | Huddersfield | 2023 |
| AZR Optics Ltd | Stourbridge | 2021 |
| AZR Physio Training Limited | London | 2017 |
| Azra Aesthetics Ltd | Southampton | 2018 |
| Azriel Care Initiative CIC | Sunderland | 2024 |