| Advanced Life Support Group | Manchester | 2002 |
| Advanced Manufacturing Training Centre Ltd | Walsall | 2017 |
| Advanced Medical and Driving Solutions Limited | Dunmow | 2023 |
| Advanced Mentoring Education Ltd | Wirral | 2022 |
| Advanced Motorcycle Training Limited | Clevedon | 2018 |
| Advanced Music Services Ltd | Bedford | 2019 |
| Advanced Pathway Campus Ltd | London | 2024 |
| Advanced Psychological Solutions Ltd | Harlow | 2022 |
| Advanced PT UK Limited | Bognor Regis | 2024 |
| Advanced Rehabilitation Training Ltd | Stourport-On-Severn | 2025 |
| Advanced Resuscitation Training Ltd | Winchester | 2024 |
| Advanced Rework Technology Limited | Witham | 2004 |
| Advanced Riding Techniques Limited | Brighton | 1998 |
| Advanced Safety Education and Training Limited | Keswick | 2014 |
| Advanced School of Management Limited | Barnet | 2025 |
| Advanced Soccer and Sports Assoc (Assa) Ltd | London | 2019 |
| Advanced Stem Tuition Ltd | St. Columb | 2024 |
| Advanced Studies in England Limited | Bath | 1987 |
| Advanced Tactical and Emergency Medicine Limited | Symonds Yat West | 2013 |
| Advanced Therapeutic Massage & Mindworks Ltd | Rochester | 2026 |
| Advanced Thinking Tuition Limited | Borehamwood | 2020 |
| Advanced Training and Testing Ltd | Birmingham | 2008 |
| Advanced Training Solutions (Scotland) Ltd | Dundee | 2020 |
| Advanced Training Solutions Ltd | Lancaster | 2025 |
| Advanced Tuition Limited | London | 2015 |
| Advanced Web Academy Ltd | Walthamstow | 2020 |
| Advanced Workplace Training and Development Ltd | Prescot | 2026 |
| Advancement Education Ltd | London | 2025 |
| Advancement Inc. Ltd | London | 2023 |
| Advancements ABA Ltd. | London | 2017 |
| Advances Against Aspergillosis Ltd | Altrincham | 2022 |
| Advancing Healthcare Academy Ltd | Hamilton | 2019 |
| Advanta Training Limited | London | 2026 |
| Advantage 10 Ltd | Twickenham | 2022 |
| Advantage Accreditation Limited | Pershore | 2009 |
| Advantage Dyslexia Ltd | Manchester | 2021 |
| Advantage Education Limited | Bridgend | 2023 |
| Advantage Exam Preparation Limited | Newcastle | 2016 |
| Advantage Human Ltd | Croydon | 2026 |
| Advantage International (Sports & Language) Limited | Deal | 1998 |
| Advantage Multi Academy Trust | Hounslow | 2017 |
| Advantage Osaa Limited | Watlington | 2026 |
| Advantage Schools | Bedford | 2010 |
| Advantage Sport Group CIC | Northampton | 2021 |
| Advantage Sports Development UK Ltd | Liverpool | 2024 |
| Advantage Spring Ltd | Cardiff | 2013 |
| Advantage Tennis Limited | Stanford | 2013 |
| Advantage Testing UK Limited | Newcastle Upon Tyne | 2013 |
| Advantage Tutoring Limited | Telford | 2021 |
| Advantage U Limited | Southport | 2023 |
| Advantia Education Limited | London | 2024 |
| Advaya Media Ltd | Twickenham | 2021 |
| Advent Tutors Limited | Essex | 2023 |
| Adventure 4 YOU Ltd | Towcester | 2024 |
| Adventure Aviation Limited | Kinross | 2020 |
| Adventure Awards Limited | Cockermouth | 2020 |
| Adventure Babies Ltd | Axbridge | 2015 |
| Adventure Bikes Ltd | Alfreton | 2022 |
| Adventure Bound CIC | Little Shurdington | 2024 |
| Adventure Bude Ltd | Bude | 2021 |
| Adventure Care Team Ltd | Yeovil | 2025 |
| Adventure Centre for Education (Ace) | Girvan | 2010 |
| Adventure Clubs Ltd | Congleton | 2005 |
| Adventure Code CIC | Liverpool | 2026 |
| Adventure Emergency Care Limited | | 1995 |
| Adventure Farm Day Nursery Ltd | Milton Keynes | 2020 |
| Adventure Generation Ltd | Radlett | 2025 |
| Adventure Heaven Ltd | Colwyn Bay | 2022 |
| Adventure Hikes Limited | Congleton | 2023 |
| Adventure in Learning Ltd | Newcastle Upon Tyne | 2023 |
| Adventure in Music CIC | Bury | 2025 |
| Adventure Into Art CIC | Washington | 2021 |
| Adventure IS Ours C.I.C. | Altrincham | 2025 |
| Adventure Kidz Group Ltd | London | 2025 |
| Adventure Learning Academy Trust | Maidstone | 2013 |
| Adventure Learning Childcare Limited | Reading | 2013 |
| Adventure Learning Limited | Kendal | 2000 |
| Adventure Lectures Ltd | Hastings | 2020 |
| Adventure Lincolnshire Ltd | Sleaford | 2018 |
| Adventure Medix Limited | Ipswich | 2015 |
| Adventure Pioneers (Northwest) Community Interest Company | Poulton | 2021 |
| Adventure Playschool Ltd | Coalville | 2019 |
| Adventure Plus | Bampton | 2000 |
| Adventure Sports Innovations CIC | Yelverton | 2022 |
| Adventure Sunderland | Sunderland | 1996 |
| Adventure Through History Limited | Broughton In Furness | 2021 |
| Adventure Tribe Ltd | Peterborough | 2020 |
| Adventure Tuition Limited | Harpenden | 2014 |
| Adventure Tutoring Ltd | Dorking | 2023 |
| Adventure Under Sail | Brentwood | 2008 |
| Adventure Unlocked Ltd | Liverpool | 2021 |
| Adventure Valley Day Nursery Limited | Co Durham | 2018 |
| Adventure Weather Ltd | London | 2022 |
| Adventure Wellbeing Online School Ltd | Northwich | 2025 |
| Adventure Wellbeing Schools Ltd | Northwich | 2023 |
| Adventure Wood Childcare (Denny) Ltd | Glasgow | 2019 |
| Adventure World Explorers CIC | London | 2025 |
| Adventurehers Ltd | Ross-On-Wye | 2024 |
| Adventuremed Ltd | Brixham | 2019 |
| Adventurers Day Nursery Ltd | York | 2020 |