| AIX Group Ltd | London | 2023 |
| AIX Innovation Limited | London | 2023 |
| AIX Insights Ltd | London | 2025 |
| AIX Systems Ltd | London | 2023 |
| Aix-Health Ltd | London | 2025 |
| Aix-Ray Limited | Edinburgh | 2026 |
| Aixbot Automation Ltd | London | 2025 |
| Aixccelerate Limited | London | 2025 |
| Aixcel Ltd | Bexleyheath | 2024 |
| Aixcheck Ltd | London | 2025 |
| Aixcoin Ltd | Northampton | 2026 |
| Aixcw Limited | Mildenhall | 2026 |
| Aixel Ltd | Aberdeen | 2024 |
| Aixh Ltd | London | 2026 |
| Aixia Technologies Ltd | Rowley Regis | 2021 |
| Aixion IT Solutions Ltd | Didcot | 2025 |
| Aixl Ltd | Bristol | 2023 |
| Aixo AI Ltd | London | 2025 |
| Aixo Ltd | London | 2025 |
| Aixon Digital Limited | Chippenham | 2024 |
| Aixr Ltd | Rayleigh | 2023 |
| Aixr Management Limited | Rayleigh | 2016 |
| Aixr(Uk) Limited | London | 2022 |
| Aixrepublic Ltd | Hove | 2025 |
| Aixsurge Limited | London | 2026 |
| Aixter & Co Ltd | Bexley | 2025 |
| Aixtreme Research Limited | Wimborne | 2009 |
| Aixyber Tech Ltd | London | 2025 |
| Aiya Card Limited | Bangor | 2024 |
| Aiyana Solutions Ltd | Nottingham | 2026 |
| Aiyantr Ltd | Ashford | 2020 |
| Aiyaz Ahmed Ltd | Isle Of Arran | 2012 |
| Aiydec Corporation Limited | London | 2019 |
| Aiyla Ltd | London | 2025 |
| Aiyonic Ltd | London | 2025 |
| AIZ Consultancy Services Limited | Rochdale | 2017 |
| AIZ Global Ltd | London | 2025 |
| Aizahra Trading Ltd | Luton | 2025 |
| Aizam Technologies Ltd | London | 2022 |
| Aizanic Ltd | Maidstone | 2017 |
| Aize Operations UK Limited | Leeds | 2024 |
| Aizelmcgarry Limited | Carrickfergus | 2020 |
| Aizen Digital Limited | Margate | 2012 |
| Aizen Systems Ltd | London | 2025 |
| Aizenit Technologies Limited | London | 2021 |
| Aizontech Ltd | Gerrards Cross | 2024 |
| Aizova Limited | London | 2025 |
| Aizu Limited | Camberley | 2017 |
| AJ & Co Productions Ltd | London | 2025 |
| AJ & J Limited | Glasgow | 2019 |
| AJ & R Ltd | Basildon | 2020 |
| AJ & T Consulting Ltd | Westoning | 2017 |
| AJ Active Solutions Limited | Hitchin | 1997 |
| AJ Agile Delivery Ltd | Burton-On-Trent | 2019 |
| AJ Anasi Group Ltd | Forestgate | 2024 |
| AJ Audio Ltd | Horsham | 2022 |
| AJ Baxter Consultancy Ltd | Swindon | 2013 |
| AJ Bell Media Limited | Salford Quays | 1999 |
| AJ Bibby Limited | Nantwich | 2015 |
| AJ Bond Limited | Waltham Cross | 2023 |
| AJ Books Limited | Billingham | 2024 |
| AJ Bryant Consultancy Ltd | London | 2015 |
| AJ Bury Consultancy Limited | Kineton | 2026 |
| AJ Cabling Limited | London | 2015 |
| AJ Carmichael Limited | Abergavenny | 2016 |
| AJ Cloud Consulting Limited | London | 2022 |
| AJ Consultants Limited | Grays | 2019 |
| AJ Creates Limited | London | 2025 |
| AJ Data Management Ltd | London | 2023 |
| AJ Dendrick Limited | Grays | 2016 |
| AJ Digital Ltd | Crawley | 2022 |
| AJ Digital Management Ltd | Erith | 2019 |
| AJ Digital Solutions Ltd | Wimborne | 2021 |
| AJ DOC Project 2025 Ltd | London | 2025 |
| AJ Dsci Consulting Ltd | Keighley | 2024 |
| AJ Employment Ltd | Northampton | 2013 |
| AJ Esquire Productions Limited | London | 2016 |
| AJ Factor Ltd | London | 2024 |
| AJ Fibre Surveys Limited | Dundee | 2024 |
| AJ Fielding Consulting Ltd | London | 2020 |
| AJ Information Technology Consultancy Ltd | Worcester | 2017 |
| AJ Information Technology Ltd | London | 2026 |
| AJ Infotech Limited | London | 2024 |
| AJ Infrastructure Consultancy Ltd | Wymondham | 2007 |
| AJ Innovative Solutions Ltd | Sutton | 2024 |
| AJ IT Services Ltd | Eastleigh | 2018 |
| AJ IT Solutions PVT Ltd | Cambridge | 2016 |
| AJ IT Support Services Ltd | Salisbury | 2018 |
| AJ Legacy Media Ltd | London | 2026 |
| AJ Logistics MCR Ltd | Manchester | 2025 |
| AJ Mackender Computer Services Limited | Faversham | 2014 |
| AJ Marshall Consulting Limited | Sutton Coldfield | 2024 |
| AJ Mccormick Ltd | Stockport | 2016 |
| AJ Media & Marketing Limited | Stockport | 2024 |
| AJ Media Ltd | Warwick | 2010 |
| AJ Media Productions Limited | London | 2019 |
| AJ Millington Consulting Ltd | Bristol | 2023 |
| AJ Monaghans Limited | Bristol | 2019 |
| AJ Motion Graphics Ltd | Hyde | 2020 |
| AJ Music Limited | London | 2026 |