| I CAN Charity | London | 1908 |
| I CAN Compose Ltd | Harrogate | 2017 |
| I CAN Education Ltd | Pontypool | 2021 |
| I CAN First AID Ltd | London | 2026 |
| I CAN I AM and I Will CIC | London | 2026 |
| I CAN Preschools Ltd | Cheam | 2018 |
| I CAN Save a Life Ltd | Doncaster | 2022 |
| I Can'T Afford Therapy SO... Ltd | Manchester | 2025 |
| I Care.Com Ltd. | Rutherglen | 2009 |
| I Depend on ME Limited | Chichester | 2022 |
| I Discover I Limited | Acocks Green | 2022 |
| I DO Coaching Limited | Wolverhampton | 2024 |
| I DO Pilates Ltd | Bedford | 2019 |
| I Drive Driver Training Ltd | Cardiff | 2018 |
| I Driving School Ltd | Bolton | 2025 |
| I Education Exchange Ltd | Barking | 2021 |
| I Empower Ltd | Harrogate | 2021 |
| I F Training Competency Consultancy Limited | Spennymoor | 2019 |
| I Feel Empowered Ltd | Teddington | 2018 |
| I Found ME Therapeutic Counselling (IFM) CIC | London | 2022 |
| I H Belfast Teacher Training Limited | Belfast | 2010 |
| I Hate Numbers Limited | Leicester | 2006 |
| I Have a Dream Limited | Milton Keynes | 2024 |
| I Have a Voice Community Interest Company | London | 2019 |
| I Have GOT This Ltd | Ipswich | 2021 |
| I I L Europe Limited | London | 1999 |
| I Learn for Enterprise Limited | Cambridge | 2013 |
| I Love Coffee Roasting UK Ltd | Bourne End | 2023 |
| I Love to Learn Limited | Southasea | 2004 |
| I M Harrod Ltd | Cheltenham | 2012 |
| I Matter Training Ltd | Kendal | 2011 |
| I Picture This C.I.C. | Welwyn Garden City | 2019 |
| I Play Phonics Limited | Omagh | 2025 |
| I Process People Ltd | London | 2022 |
| I Quran Ltd | Harrow | 2025 |
| I Rose Tutoring Services Ltd | Blackwood | 2020 |
| I School Ltd | Milton Keynes | 2018 |
| I SEE Maths Ltd | Chester | 2016 |
| I Sensory CIC | Wandsworth | 2022 |
| I Sing to Learn Limited | Ossett | 2015 |
| I Sore Media C.I.C. | Birmingham | 2010 |
| I Speak Yoruba TOO Ltd | Southampton | 2022 |
| I Stem Teacher Ltd | London | 2018 |
| I Support Behaviour Ltd | Castle Street | 2017 |
| I T Dreaming Ltd | Bradford | 2016 |
| I Teach (Wales) Limited | Cardiff | 2012 |
| I Teach Studios Ltd | London | 2023 |
| I Tutor Club Ltd | Watford | 2024 |
| I Tweddell Limited | Pickering | 2021 |
| I Understand Education Ltd | Derby | 2024 |
| I Union of Pakistani Students CIC | Morden | 2022 |
| I Wood Train Ltd | Mansfield | 2024 |
| I&M Training Limited | Yeovil | 2019 |
| I'M Here Champions Network Ltd | Southampton | 2024 |
| I'M Standing Tall Ltd | London | 2017 |
| I'Mpossible State of Mind Ltd | Croydon | 2014 |
| I-4 Talent 1896 Ltd | Bracknell | 2019 |
| I-4 Talent 1910 Ltd | Bracknell | 2019 |
| I-4 Talent Athlete Management Limited | Bracknell | 2019 |
| I-5 Football Academy Ltd | Doncaster | 2024 |
| I-Act for Positive Mental Health and Wellbeing Ltd | Cardiff | 2018 |
| I-Bogey Community Interest Company | Brighton | 2021 |
| I-Can Driving Solutions Ltd | Middleton | 2016 |
| I-Can Qualifications Limited | Bristol | 2008 |
| I-Can Support Group C.I.C. | Watford | 2021 |
| I-Chemeng for Training and Consulting Ltd | London | 2024 |
| I-Coach Academy Limited | Holt | 2002 |
| I-Deal-Me Ltd | Gateshead | 2025 |
| I-Drive Driving School Limited | Nottingham | 2011 |
| I-Genius Limited | London | 2004 |
| I-Learn 2 Earn Ltd | Cardiff | 2021 |
| I-Learner Driving School Limited | Bromley | 2026 |
| I-Learner's Hub Ltd | Aberdeen | 2023 |
| I-Line International C.I.C. | London | 2019 |
| I-Lineeurope Ltd | London | 2015 |
| I-Medical Group Ltd | London | 2025 |
| I-Nfer Assessment Limited | Berkshire | 2006 |
| I-On Academy Ltd | Cannock | 2024 |
| I-Pegasus Community Interest Company | Doncaster | 2017 |
| I-Play Music Ltd | London | 2019 |
| I-Smart Care Limited | Loughton | 2013 |
| I-Study Limited | Hereford | 2014 |
| I-Success Academy Ltd | East Tilbury | 2017 |
| I-Taz Ltd | Ilford | 2024 |
| I-Training Limited | Swindon | 2013 |
| I.B. Training Services Limited | Manchester | 2015 |
| I.C.E Inclusive Curriculum Education Limited | Willenhall | 2023 |
| I.E. Informal Education Ltd | Guildford | 2006 |
| I.E.A Tutoring Centre Ltd. | Radlett | 2014 |
| I.M.D.T Ltd | Winchmore Hill | 2010 |
| I.N.T. Driving School Ltd | Boston | 2013 |
| I.O.Academy Limited | Hatfield | 2025 |
| I.S. Pro Performance Group Limited | Farnborough | 2025 |
| I.S. Pro Performance Limited | Farnborough | 2025 |
| I.S.S.E.T. (Training) Limited | Cardiff | 2001 |
| I.T. Excellence Limited | Great Yarmouth | 1998 |
| I.T.D. Limited | Bicester | 2002 |
| I12LEARN Limited | Kingston Upon Thames | 2012 |
| I2I Developments Ltd | York | 2009 |
| I2I Life Foundation | York | 2011 |