| Aybee Neurology Limited | Eltham | 2022 |
| Aybt Enterprises Ltd | London | 2024 |
| AYC Adhd Assessment and Support Services Ltd | Warrington | 2025 |
| Aycan Hardy Beauty Aesthetic Ltd | Kingston Upon Thames | 2023 |
| Aycare Ltd | London | 2022 |
| Aycareangels Limited | Lisburn | 2025 |
| Ayce Connect Ltd | Wolverhampton | 2023 |
| AYD Care and Support Limited | Nottingham | 2019 |
| Aydan Hussain Ltd | Bradford | 2026 |
| Ayden Optical Ltd | Bury | 2024 |
| Aydy Dental Care Limited | Paisley | 2014 |
| AYE Care Ltd | Birmingham | 2019 |
| Ayeda Limited | London | 2012 |
| Ayede Medicare Ltd | Harlow, Essex, England | 2023 |
| Ayeeyo and Awoowo Daryeel CIC | Bristol | 2022 |
| Ayefit Ltd | Glasgow | 2012 |
| Ayekoloye Medical Ltd | Liverpool | 2009 |
| Ayelen Limited | Emsworth | 2008 |
| Ayem Ltd | Derby | 2009 |
| Ayeni Medical Ltd | London | 2022 |
| Ayesh Healthcare Limited | Birmingham | 2023 |
| Ayesha ALI Ltd | Bradford | 2022 |
| Ayesha Contracting Ltd | Huddersfield | 2023 |
| Ayesha Healthcare Ltd | Dewsbury | 2025 |
| Ayesha Iqra Limited | Leicester | 2009 |
| Ayesha Khatun Limited | London | 2021 |
| Ayesha Malik Limited | Bedfordshire | 2025 |
| Ayesha Mpharm Ltd | Huddersfield | 2023 |
| Ayesha Sharif Medical International Ltd | Westcliff-On-Sea | 2015 |
| Ayesha Suleman Ltd | Northampton | 2023 |
| Ayesha Tariq M Ltd | Newcastle | 2026 |
| Ayeshaas Ltd | Leicester | 2023 |
| Ayetis Solutions Limited | Croydon | 2022 |
| Ayetonis Limited | Sunderland | 2024 |
| AYI Locum Services Ltd | Leicester | 2020 |
| Ayibu Ltd | Harlow | 2022 |
| Ayiesha Ltd | Newcastle Upon Tyne | 2022 |
| Ayin EL Kanna Limited | Wetherby | 2022 |
| Ayinke Children's Care Limited | Birmingham | 2024 |
| Ayinke Solutions Ltd | Milton Keynes | 2022 |
| Ayinks UK Limited | Romford | 2024 |
| Ayisha Ltd | Slough | 2022 |
| Ayisha's Nursin and Care Ltd | Rainham | 2022 |
| Ayitodam GP Services Ltd | Harlow, Essex | 2025 |
| Ayizan Woman Ltd | London | 2025 |
| Ayjai Limited | London | 2022 |
| Aykayna Limited | Northampton | 2018 |
| Aykhan Ltd | Lanark | 2025 |
| Aykiz Aesthetic Clinic Limited | Birmingham | 2020 |
| Aykon CYP Services Ltd | Romford | 2025 |
| Ayla Clinic Ltd | Leicester | 2025 |
| Ayla Health Care Ltd | Oldham | 2022 |
| Ayla Management Ltd | Chelmsford | 2023 |
| Ayla Medical Services Ltd | Birmingham | 2024 |
| Ayla Medics Ltd | Hamilton | 2023 |
| Ayla Nora Ltd | Chelmsford | 2019 |
| Ayla Tabassum Choudhary Limited | Croydon | 2020 |
| Aylaabigail Limited | Norwich | 2021 |
| Ayladental Limited | Hornchurch | 2022 |
| Ayle & Ayle Ltd | Chelmsford | 2014 |
| Aylecare Limited | Swansea | 2002 |
| Aylesbury Care Group Limited | Blackpool | 2017 |
| Aylesbury Counselling Ltd | Aylesbury | 2014 |
| Aylesbury Dental Care Limited | Buckingham | 2006 |
| Aylesbury Enterprise Ltd | London | 2021 |
| Aylesbury Health and Wellness Limited | Aylesbury | 2025 |
| Aylesbury Vale Chiropractic Limited | Milton Keynes | 2021 |
| Aylesbury Women's AID | Thame | 1996 |
| Aylesford Coventry Limited | Addlestone | 2015 |
| Aylesford Medical Consulting Ltd | Lincoln | 2016 |
| Aylestone Angels Childcare Ltd | Leicester | 2023 |
| Aylestone Grange Ltd | Leicester | 2013 |
| Aylestone Medical Limited | Ilford | 2010 |
| Ayling & Associates Limited | Bromley | 2022 |
| Aylott Chiropractic Limited | Foulsham | 2023 |
| Aylsham Homecare Ltd | Aylsham | 2015 |
| Aylsham Manor Residential Care Limited | Harrow | 2025 |
| Aylward Dental Ltd | Dover | 2025 |
| AYM Consulting Ltd | Suffolk | 2025 |
| AYM Healthcare Ltd | Huddersfield | 2023 |
| AYM Optics Ltd | Bolton | 2014 |
| AYM Personal Services Limited | Sutton Coldfield | 2023 |
| Aymaan Limited | Liverpool | 2017 |
| Ayman & Martin Limited | Glasgow | 2022 |
| Ayman TLC Limited | Caerdydd | 2022 |
| Aymanak Ltd | London | 2024 |
| Aymara London CIC | London | 2025 |
| Aymara Social Enterprise CIC | London | 2020 |
| Aymat Consulting Ltd | Eastbourne | 2023 |
| Aymb Limited | Birmingham | 2024 |
| Aymen Sammy Al-Saeed Ltd | Manchester | 2015 |
| Aymt Locums Ltd | Birmingham | 2026 |
| AYN Smile Ltd | Altrincham | 2019 |
| Ayni GLA Limited | Glasgow | 2023 |
| Aynia Ltd | Bellshill | 2025 |
| Aynsley FRY Limited | Thatcham | 2014 |
| AYO Fitness Ltd | London | 2026 |
| AYO Hcare Limited | Sheffield | 2019 |
| AYO Johnson Ltd | Dagenham | 2022 |
| AYO Konsult Ltd | Harlow Essex | 2015 |