| A to Z Science Limited | Birmingham | 2025 |
| A to Z Service Group Ltd | Wembley | 2026 |
| A to Z Spanish Academy Limited | Addlestone | 2024 |
| A to Z Sports Coaching Ltd | New Malden | 2026 |
| A Tribe Called PT Ltd | Leigh-On-Sea | 2020 |
| A Tutors Limited | London | 2024 |
| A V Wellbeing Limited | Nottingham | 2018 |
| A Very English Nanny Ltd | Liverpool | 2024 |
| A W E Gymnastics Ltd | Leicester | 2015 |
| A Way of Learning CIC | Barrow-In-Furness | 2025 |
| A Wealthier Way Limited | London | 2025 |
| A Week in the Life Ltd | Croydon | 2019 |
| A Widow's Way Forward CIC | London | 2022 |
| A&A Driving UK Ltd | London | 2025 |
| A&A Academy Ltd | Birmingham | 2021 |
| A&A Childcare Ltd | Sutton | 2023 |
| A&A Professional Consulting Limited | Edgware | 2017 |
| A&B Education Network Ltd | London | 2019 |
| A&B English With Ease Ltd | Fareham | 2023 |
| A&B Global Ltd | London | 2023 |
| A&C Education Limited | Derby | 2017 |
| A&C Motorcycle Training Ltd | Bishop Auckland | 2021 |
| A&F After-School Club Ltd | Croydon | 2026 |
| A&F Optimal Limited | Chelmsford | 2024 |
| A&F Tutors Ltd | London | 2019 |
| A&G Healthcare Ltd | London | 2025 |
| A&G Student Admission Limited | Tamworth | 2023 |
| A&H Borrie Consultancy Limited | Loughborough | 2015 |
| A&H Driving School Limited | Grays | 2024 |
| A&J Driving School Ltd | Milton Keynes | 2026 |
| A&J Psychology Ltd | Haslemere | 2022 |
| A&J Recruits Ltd | London | 2024 |
| A&J School Limited | Putney | 2019 |
| A&K Coaching Ltd | Hull | 2024 |
| A&K Driving School Ltd | Manchester | 2025 |
| A&K Football and Education Community Club C.I.C. | Liverpool | 2023 |
| A&K Training Ltd | Liverpool | 2024 |
| A&M Education Consulting Ltd | Bristol | 2024 |
| A&M Educational Expert Support Ltd | Wolverhampton | 2024 |
| A&M Learning Ltd | Guildford | 2021 |
| A&N Lovelife Services Ltd | London | 2025 |
| A&N Tutorials Limited | Leicester | 2019 |
| A&Q 110 Ltd. | London | 2021 |
| A&R Educational Services Ltd | Aylesbury | 2019 |
| A&R Online Education Ltd | Ilford | 2020 |
| A&R Training Consultancy Ltd | Stoke-On-Trent | 2018 |
| A&S Drivepro Ltd | London | 2021 |
| A&S Education and Immigration Solutions UK Ltd | Sutton-In-Ashfield | 2025 |
| A&S Medical Academy Limited | Newton Abbot | 2025 |
| A&S Transport Training Limited | Sheffield | 2012 |
| A&Y Training & Security Services Ltd | Bolton | 2022 |
| A&Z Mental Health First AID Training Limited | Kington | 2023 |
| A'S and 9'S Tutoring Ltd | Romford | 2024 |
| A-2-Z Resilience Ltd | Warminster | 2013 |
| A-Cross Music Ltd | Edgware | 2014 |
| A-Cumulus Ltd | Tonbridge | 2022 |
| A-Force Training Consultancy Limited | Hartlepool | 2012 |
| A-Grade Training Services Ltd | Littlehampton | 2013 |
| A-Kidz Childcare Ltd | Staines-Upon-Thames | 2005 |
| A-Level Excellence Ltd | Birmingham | 2026 |
| A-Level Maths Mastery Ltd | Leicester | 2024 |
| A-Life Limited | Chorleywood Rickmansworth | 2004 |
| A-List Hair Academy Ltd | Peterborough | 2022 |
| A-Mark (International) College Ltd | Enfield | 2005 |
| A-Qa Services Limited | Birmingham | 2025 |
| A-Star Education Services Ltd | Loughton | 2023 |
| A-Star Kids Parkview Ltd | Oldham | 2024 |
| A-Star Tuitions PVT. Ltd | London | 2018 |
| A-Star Tutorials Limited | London | 2005 |
| A-Star-Tutors Limited | Wallington | 2013 |
| A-Stars Pre-School Ltd | Wigan | 2018 |
| A-Team Academy Ltd | Birmingham | 2017 |
| A-To-E Training and Solutions Ltd | London | 2006 |
| A-To-Zeasy Learning (UK) Limited | Isleworth | 2003 |
| A-Z Basketball Limited | Stevenage | 2019 |
| A-Z Business Training Ltd | London | 2002 |
| A-Z Driving Services Ltd | London | 2026 |
| A-Z Educare Ltd | Birmingham | 2022 |
| A-Z Learning Academy Ltd | London | 2023 |
| A-Z Online Training Limited | Lancing | 2024 |
| A-Z Training Centre Limited | London | 2012 |
| A. + D. Tyler Limited | Harpenden | 1999 |
| A. Lewis Limited | Pontypridd | 2002 |
| A. M. Qattan Foundation | London | 1987 |
| A. Medical Wellbeing Ltd | Harlow | 2023 |
| A. S. C. C. (UK) Limited | Lewes | 2014 |
| A. Samuel Enterprises Ltd | Cheltenham | 2024 |
| A. Wilson Assess & Train Limited | Gillingham | 2007 |
| A.A.S. Training Limited | Bristol | 1997 |
| A.B Stage School Ltd | Heathfield | 2025 |
| A.B.B.E.Y. Sure Start | Newtownabbey | 2001 |
| A.C. Mayes Limited | Northampton | 2016 |
| A.C.E (Primary Consultancy) Limited | Dartford | 2022 |
| A.C.E Maths Ltd | Ilofrd | 2017 |
| A.C.E Multi CIC | Edgware | 2024 |
| A.C.E. Guidance Services Ltd | Mansfield | 2023 |
| A.C.E. Nursery School (Cambridge) Limited | | 1974 |
| A.C.E.P.H. (Academy of Clinical, Experimental & Psychotherapeutic Hypnosis) Ltd. | London | 2023 |
| A.D. Training and Development Ltd | Coatbridge | 2023 |
| A.E. Malcolm Ltd | Essex | 2022 |