| IBI Idris Academy Ltd | London | 2024 |
| IBI Yorkshire Limited | Bradford | 2019 |
| Ibicus Ltd | London | 2012 |
| Ibikelondon C.I.C. | London | 2023 |
| Ibily Ltd. | London | 2016 |
| Iblen Signal Engineering Ltd | Fareham | 2015 |
| Ibmds Limited | London | 2011 |
| IBN & TTN Limited | Ruislip, | 2025 |
| IBN AL Jazari Inst. Qiraāt Sciences Ltd | Birmingham | 2023 |
| IBN Jabal Limited | Romford | 2008 |
| IBN Mousa CIC | Woking | 2026 |
| IBN Sina College Limited | Manchester | 2017 |
| IBN Sina Wellbeing Project CIC | Westcliff-On-Sea | 2025 |
| Ibn-Battuta Ltd | Musselburgh | 2024 |
| Ibni Ltd | Newcastle Upon Tyne | 2021 |
| IBO Ladies in Diaspora AID (Ibda) C.I.C. | Salford | 2021 |
| Ibom International Ltd | Liverpool | 2025 |
| Ibon World Foundation Ltd | London | 2025 |
| Ibrahim Abarshi & Co Ltd | London | 2018 |
| Ibrahim Educare Limited | London | 2017 |
| Ibrahim Farooqui Ltd | Bury St. Edmunds | 2026 |
| Ibritannia Consultancy Ltd | London | 2022 |
| IBS (London ) Ltd | London | 2022 |
| IBS Training and Development Ltd | Bushwood | 2019 |
| Ibsay Limited | Glasgow | 2019 |
| Ibsca Limited | Scarborough | 2006 |
| Ibsg Limited | London | 2025 |
| Ibstock Place School | London | 2011 |
| Ibzzy Tutors Limited | London | 2025 |
| IC Active Training Limited | Waterlooville | 2014 |
| IC EDU Solutions Ltd | Ashford | 2017 |
| IC Educational (Cambridge) Ltd | London | 2021 |
| IC Learning Mentor Limited | Barrow-In-Furness | 2018 |
| IC Masterclass Ltd | Alton | 2024 |
| IC Oxbridge Ltd | Canterbury | 2022 |
| IC Resuscitation Training Ltd | Bury St Edmunds | 2018 |
| IC Systems Limited | Edinburgh | 2014 |
| IC Tennis Ltd | Glasgow | 2024 |
| ICA 98 Limited | London | 1995 |
| ICA Commercial Services Limited | Birmingham | 2002 |
| Ica:Uk | Ruislip | 2000 |
| Icaes - London Ltd | London | 2024 |
| Icaht Education Ltd | Leicester | 2019 |
| Icam Model Limited | Ipswich | 2018 |
| Ican Hub CIC | Pontypool | 2025 |
| Ican Iwill CIC | London | 2025 |
| Ican Personal Development (UK) Limited | London | 2011 |
| Ican Personal Training (Wilmslow) Limited | Liverpool | 2012 |
| Ican Project CIC | London | 2020 |
| Ican Training Limited | Swindon | 2016 |
| Icandoit Learning Limited | Ashby-De-La-Zouch | 2018 |
| Icanthus Limited | Birmingham | 2005 |
| Icantutoring Ltd | London | 2025 |
| Icapitalize Academy Ltd | Liverpool | 2026 |
| Icare Dental Nurses Training Solutions Ltd | Manchester | 2018 |
| Icareer Consultancy UK Ltd | London | 2018 |
| Icarus Education Ltd | London | 2022 |
| Icarus Ideas Limited | Huddersfield | 2002 |
| Icarus Medical Ltd | Liverpool | 2019 |
| Icarus Training Ltd | Woking | 2012 |
| Icat Limited | Cardiff | 1992 |
| Icats Education Limited | London | 2017 |
| ICB Awards | London | 2012 |
| ICB Direct Limited | High Wycombe | 2005 |
| ICB Global | High Wycombe | 2006 |
| ICB International Limited | High Wycombe | 1999 |
| ICB Member Services Ltd | High Wycombe | 2015 |
| Icboq UK Limited | Cardiff | 2017 |
| Icbs Educational Consultants Ltd | Hemel Hempstead | 2026 |
| Icbs Global Limited | Aldershot | 2019 |
| Icchp Limited | London | 2011 |
| Iccm (Training) Limited | Kettering | 2001 |
| Iccoep Ltd | Cardiff | 2018 |
| ICD Partnership Limited | Eastleigh | 2017 |
| ICD Trading Ltd | London | 2023 |
| Icdans Limited | Cambridge | 2017 |
| Ice Academy Ltd | Dartford | 2025 |
| Ice Aviation Consulting Limited | Ewen | 2018 |
| Ice Black Belt Schools Limited | Tunbridge Wells | 2023 |
| Ice Cats Global Initiative Ltd | Liverpool | 2020 |
| Ice Coach Online Ltd | Cardiff | 2017 |
| Ice Drive Sweden Limited | Chesterfield | 2023 |
| Ice Education Limited | London | 2001 |
| Ice First AID Training Limited | Sunbury-On-Thames | 2012 |
| Ice Foundation Limited | Caerphilly | 2015 |
| Ice Hairdressing Limited | Woking | 2003 |
| Ice Play ENT C.I.C. | Dartford | 2025 |
| Ice Tickles Childcare Community CIC | London | 2023 |
| Ice Tickles Childcare Ltd | London | 2019 |
| Iceasi | Cheshire | 2022 |
| Iced Gems Events & Parties Limited | Oxted | 2014 |
| Icedean Limited | Longton | 1994 |
| Icenai Domes Ltd | Ipswich | 2025 |
| Iceni Driving School Ltd | Rayleigh | 2025 |
| Iceni Educational Psychology Limited | London | 2026 |
| Iceni Mastermind Group Ltd | Sale | 2025 |
| Iceni Resources Ltd | Great Yarmouth | 2021 |
| Iceni Training Limited | Norwich | 2019 |
| Iceni Worldwide Ltd | Northampton | 2021 |
| Iceprogramme Ltd | London | 2025 |