| Hare Hatch Early Education Limited | Hayling Island | 2020 |
| Hare Krishna Epsom Ltd | Epsom | 2019 |
| Harefield Academy Trust | Harefield Uxbridge | 2004 |
| Haremi Limited | Gloucestershire | 2006 |
| Hargate Equestrian Limited | Hilton | 2011 |
| Hargrave Education Ltd | Stockport | 2016 |
| Hargrave Performance Ltd | Sheffield | 2025 |
| Hargreaves Hub Ltd | Bradford | 2022 |
| Hari Master Maths Tuition Ltd | Ruislip | 2026 |
| Haringey Basketball for ALL CIC | London | 2020 |
| Haringey Culture Collective | London | 2025 |
| Haringey Education Partnership | London | 2017 |
| Haringey Heat Basketball Club CIC | London | 2023 |
| Haringey Nursery Schools Training Consortium Ltd | London | 2016 |
| Haringey Sixth Form Education | London | 2013 |
| Haringey Tree Protectors Ltd | London | 2022 |
| Haris Solutions Ltd | Bedford | 2013 |
| Harkness Coaching Ltd | Leatherhead | 2014 |
| Harko Ltd | Redcar | 2018 |
| Harlands Educational Trust | Haywards Heath | 2014 |
| Harlax Media Ltd | Leyland | 2024 |
| Harlaxton College | Grantham | 2009 |
| Harle Ventures Limited | Thirsk | 2024 |
| Harlequin Childcare Limited | Burntwood | 2003 |
| Harlequin Gymnastics Club Limited | Essex | 2007 |
| Harlequin Nurseries Ltd. | Glasgow | 2003 |
| Harlequin OUT of School Clubs Ltd | Kent | 2002 |
| Harlequins Private Day Nursery Limited | Enderby | 2012 |
| Harlesden Bassline CIC | London | 2026 |
| Harlesden Islamic Cultural Centre | London | 2010 |
| Harlesden Ummah Limited | London | 2006 |
| Harley College Ltd | Ilford | 2020 |
| Harley Education Ltd | Ilford | 2021 |
| Harley Elite Academy Limited | London | 2024 |
| Harley J Associates Ltd | London | 2015 |
| Harley School of Medicine Limited | London | 2018 |
| Harley Send Consultancy Limited | Sevenoaks | 2023 |
| Harley ST Group Ltd | London | 2021 |
| Harley Street Academy of Medical Sciences Limited | London | 2015 |
| Harley Street Aesthetics Training Limited | Beccles | 2024 |
| Harley Street Elite Academy Ltd | London | 2023 |
| Harley Street Medical Limited | London | 2008 |
| Harley Street Nursery Limited | Todmorden | 2016 |
| Harley Street Skin Aesthetic Training Ltd | Cambridge | 2018 |
| Harley Street Training Ltd | Reading | 2017 |
| Harley Street TRT Ltd | London | 2025 |
| Harley Tutors Limited | London | 2025 |
| Harley's House Limited | Glasgow | 1999 |
| Harleys Edinburgh Ltd | London | 2021 |
| HARLEYS2019 Ltd | Cardiff | 2019 |
| Harlow Driver Training Ltd | Harlow | 2025 |
| Harlow Education Consortium | Harlow | 2005 |
| Harlow Hilltop PRE School Limited | Harrogate | 2008 |
| Harlow Inspirational Learning Trust | Harlow | 2015 |
| Harm-Ed Ltd | Nelson | 2007 |
| Harman HAY Publications Ltd | Harrow | 2020 |
| Harmeny Education Trust Limited | Balerno | 1995 |
| Harmer Associates Limited | Doncaster | 2011 |
| Harmer Consultancy Ltd | Shrewsbury | 2011 |
| Harmer Enterprises Limited | Twickenham | 2020 |
| Harmoni Education Ltd | Ilford | 2025 |
| Harmonic Education Ltd | Faversham | 2023 |
| Harmonic Ventures Ltd | Whitley Bay | 2025 |
| Harmonise Training Limited | Hove | 2018 |
| Harmony (Melksham) Limited | Swindon | 2016 |
| Harmony Alternative Education Limited | Maidenhead | 2017 |
| Harmony Associates Ltd | Workington | 2011 |
| Harmony Beauty Academy Ltd | Harlow | 2024 |
| Harmony Community Day Nursery | London | 2001 |
| Harmony Education & Cultural Centre Limited | London | 2015 |
| Harmony Education Ltd | Cambridge | 2022 |
| Harmony Entertainment Ltd | Bury | 2015 |
| Harmony Flow Music Academy Ltd | London | 2023 |
| Harmony Global for Humanitarian Action CIC | Paisley | 2025 |
| Harmony Hill Daycare Nursery Ltd | London | 2025 |
| Harmony Hub Chorley CIC | Chorley | 2025 |
| Harmony Hub Education Ltd | Loughborough | 2026 |
| Harmony in Health CIC | London | 2021 |
| Harmony in Horses Community Interest Company | Newcastle Upon Tyne | 2024 |
| Harmony in Motion Ltd | Eastbourne | 2024 |
| Harmony in Practice Ltd | Stockport | 2025 |
| Harmony LAB London Ltd | London | 2023 |
| Harmony Montessori Nursery Limited | Watford | 2004 |
| Harmony Music School Limited | Sheffield | 2012 |
| Harmony Neuropsychology Clinic Limited | Watford | 2025 |
| Harmony of Hearts International Ltd | Kingston Upon Thames | 2018 |
| Harmony Permaculture Ltd | Redruth | 2021 |
| Harmony Village Family Support CIC | Dudley | 2021 |
| Harmony Vocal Coaching Limited | Ripon | 2026 |
| HARMONY24/7 CIC | Bradford | 2024 |
| Harnessing Potential Limited | Northampton | 2007 |
| Harold Driving Instructor Ltd | Wembley | 2023 |
| Harold International College of London Ltd | London | 2018 |
| Harold Wood PRE School Limited | Romford | 2018 |
| Haron-Mackey Consulting Ltd | Mildenhall | 2023 |
| Harose Intelligence Ltd | Cambridge | 2022 |
| Harp Healthcare Training & Support Ltd | Sutton | 2019 |
| Harpar Qualifications Limited | Leeds | 2015 |
| Harpenden Active Limited | Cambridge | 2022 |
| Harpenden Hawks Netball Ltd | St. Albans | 2021 |