| AIM High Maths Education Limited | Nottingham | 2021 |
| AIM High Sports Community Interest Company | London | 2025 |
| AIM High Training Ltd | Leicester | 2019 |
| AIM Higher Academy Ltd | Birmingham | 2015 |
| AIM Higher Education Link Ltd | Birmingham | 2010 |
| AIM Higher Tuition Services Limited | Slough | 2015 |
| AIM LOW Industries Ltd | London | 2021 |
| AIM Netball Academy Ltd | Winchester | 2023 |
| AIM Qualifications and Assessment Group | Derby | 2004 |
| AIM Skills Development Limited | Norwich | 2010 |
| AIM Sky High CIC | Sale | 2024 |
| AIM Storylab Ltd | High Wycombe | 2024 |
| AIM Strong Sport Limited | Leicester | 2013 |
| AIM to Achieve Tuition Ltd | London | 2025 |
| AIM Ultra Limited | London | 2023 |
| AIM UP Education CIC | Newquay | 2025 |
| Aim-High Tuition Ltd | Wolverhampton | 2022 |
| Aim-To-Train Ltd | Lowestoft | 2009 |
| AIM2ACHIEVE Ltd | Sheffield | 2024 |
| AIM2AID Limited | Windsor | 2025 |
| AIM2GAIN Sports CIC | London | 2025 |
| AIM4SUCCESS Ltd | Aylesbury | 2020 |
| AIM: Vocational Internships & Placements Ltd | Liverpool | 2022 |
| Aimatrix Limited | Enfield | 2017 |
| Aimc Ltd | Selby | 2023 |
| Aimcommunity Limited | Bournemouth | 2019 |
| Aime Education Ltd | Kings Lynn | 2024 |
| Aime Inclusive Care Ltd | London | 2025 |
| Aimeei Ltd | London | 2025 |
| Aimentoring Ltd | Reading | 2025 |
| Aimers Academy Limited | Dartford | 2022 |
| Aimers Tuition Ltd | South Croydon | 2026 |
| Aimhi Education Ltd | Esher | 2020 |
| Aimhigher Hive Ltd | Bletchingley | 2019 |
| Aimhigher London Limited | Bletchingley | 2011 |
| Aimhigher Tutoring Services Ltd | Faringdon | 2020 |
| Aimilios Ltd | Kingston Upon Thames | 2023 |
| Aiming Point Limited | Clitheroe | 2025 |
| Aimm Driving School Ltd | Northampton | 2024 |
| Aims Education Limited | Southend-On-Sea | 2021 |
| Aims for Life - Coaching for Disabled People Community Interest Company | Poole | 2024 |
| Aims Tuition Limited | Croydon | 2021 |
| AIMS4CHANGE Ltd | Usk | 2006 |
| Aimslab Ltd. | Winchester | 2014 |
| Aina Initiative Ltd | Hitchin | 2024 |
| Ainasworldlittlerootsbigdreams CIC | London | 2025 |
| Ainoa Ltd | Leicester | 2021 |
| Ainstructor Limited | Leicester | 2020 |
| Ainsworth-Hides Limited | Retford | 2012 |
| Aint Foundation CIC | Scunthorpe | 2026 |
| Aintree Initiatives for Performing Arts CIC | Liverpool | 2024 |
| Aintree Motorcycle Training Ltd | Soutport | 2021 |
| Aintree School of Music Ltd | Liverpool | 2012 |
| Aintree Training Limited | Liverpool | 2021 |
| Aion Apollo Ltd | Manchester | 2019 |
| AIP Sports Academy Ltd | London | 2018 |
| Aipero Ltd | Wokingham | 2024 |
| Aipex Global Tech Ltd | London | 2025 |
| Aiquran Ltd | Scunthorpe | 2025 |
| Air Academy Limited | Borehamwood | 2021 |
| Air Athletics Cheer and Dance CIC | Rochdale | 2022 |
| Air Control Pilates Limited | Edinburgh | 2016 |
| Air Host and Learn Ltd | Liverpool | 2020 |
| Air Link One Ltd | London | 2014 |
| Air Rescue Training & Simulation Ltd | Telford | 2022 |
| Air Service Training (Engineering) Limited | Dundee | 1996 |
| Airborne Education Ltd | Accrington | 2024 |
| Airborne Precision Ltd | Maidenhead | 2024 |
| Airco Centre of Excellence Limited | Hull | 2016 |
| Aircraft Circus Academy Limited | Croydon | 2014 |
| Aircraft Engineering Training Solutions Aets Limited | Chertsey | 2006 |
| Aircrew Exams Ltd | London | 2025 |
| Aire & Worth Valley Training Services Limited | Keighley | 2023 |
| Aire Valley Active Children CIC | Keighley | 2021 |
| Aire Valley Martial Arts Projects CIC | Keighley | 2025 |
| Aire Vocational Training Limited | Nottingham | 2011 |
| Airfield Lighting Design and Training Limited | Wickford | 2025 |
| Airgun Training & Education Organisation Limited | Burntwood | 2016 |
| Airhead Atpl Ltd | London | 2022 |
| Airline Ready Training Ltd | Hinckley | 2026 |
| Airline Training Partners Ltd | London | 2026 |
| Airlingua International Ltd | Dorking | 2014 |
| Airmid Academy Ltd | Newry | 2023 |
| Airmid Training Academy Ltd | Oxted | 2026 |
| Airpitch Allplay CIC | Huddersfield | 2024 |
| Airside Company Limited | Iver Heath | 2002 |
| Airvia Academy Limited | London | 2025 |
| Airwiggles Ltd | Godalming | 2025 |
| AIS Consultants Ltd | Leicester | 2025 |
| AIS Training Limited | North Shields | 2023 |
| Aisee Collaborative Ltd | Stirling | 2024 |
| Aish Hatorah UK Limited | London | 1997 |
| Aish Kodesh Limited | London | 2016 |
| Aisha Paris Smith Coaching Ltd | Maidenhead | 2024 |
| Aisha Tutors Ltd | Wallington | 2021 |
| Aiskew Under Fives Pre-School | Bedale | 2012 |
| Aiso Compliance & Training Limited | Dunfermline | 2019 |
| AIT Medihelp Limited | Braintree | 2009 |
| Aitch GEE Training Limited | Tring | 2012 |
| Aitq Service Ltd | Glasgow | 2023 |