| Aishwaryam Ltd | Grimsby | 2006 |
| Aisimde Ltd | Rugby | 2025 |
| Aisling Care Services Ltd | Belfast | 2012 |
| Aisling Centre Company Ltd | Enniskillen | 1992 |
| Aisling Daycare & Afterschools Limited | Belfast | 2014 |
| Aisling EVE Richards OH Services Ltd | London | 2025 |
| Aisling Plastic Surgery Limited | Wilmslow | 2015 |
| Aisling Psychotherapies Ltd | Leeds | 2023 |
| Aism Signature Pregnancy Care London Limited | London | 2019 |
| Aisorongon Ltd | Bridgend | 2023 |
| Aisosa Marshall Limited | Manchester | 2026 |
| Aisr Investments Ltd | Bradford | 2019 |
| Aissa Limited | Canterbury | 2012 |
| Aistar Limited | Slough | 2022 |
| Aisthetik Ltd | Exeter | 2025 |
| AIT Care Ltd | Wolverhampton | 2026 |
| AIT Medical Ltd | London | 2023 |
| AIT Mitra Limited | Stockton-On-Tees | 2015 |
| Aitazaz Consulting Limited | Ilford | 2009 |
| Aitchsquared Ltd | Exeter | 2011 |
| Aithan Ltd | New Addington | 2023 |
| Aithocine Limited | London | 2023 |
| Aitken Feet Chiropody / Podiatry Limited | Chobham | 2010 |
| Aitken Joints Ltd | Bristol | 2019 |
| Aitop Healthcare Limited | Corby | 2016 |
| Aitzah Support Limited | Edgware | 2014 |
| AIU Arkan Ltd | London | 2021 |
| Aiuta Health Ltd | Southend-On-Sea | 2025 |
| Aiveda AC Limited | Stanmore | 2023 |
| Aiveda Care Limited | Stanmore | 2017 |
| Aiveda Limited | Stanmore | 2010 |
| Aiveda ML Limited | Stanmore | 2023 |
| Aiveda SS Limited | Stanmore | 2023 |
| Aivevo Ltd | London | 2025 |
| Aivi Health and Wellness Ltd | London | 2024 |
| Aivie Ltd | Chatham | 2025 |
| Aivom Ltd | Romford | 2022 |
| Aiwanose Limited | Thornton Heath | 2026 |
| Aiwas Labs Ltd | Stoke-On-Trent | 2025 |
| Aiwm Orthopaedics Limited | Derry | 2024 |
| Aiyana Holistic Services Ltd | London | 2021 |
| Aiyla Enterprise Ltd | Leicester | 2022 |
| Aiysha Healthcare Ltd | London | 2014 |
| AIZ Hair Professionals Ltd | London | 2022 |
| Aiza Nazir Ltd | Doncaster | 2024 |
| Aizah Medical Limited | Birmingham | 2020 |
| Aizal & Aiden Ltd | Glasgow | 2025 |
| Aizebafcare Limited | Dagenham | 2013 |
| Aizheimers UK PVT Ltd | London | 2022 |
| Aizpuru Oral Health Care Ltd | Nottingham | 2026 |
| AJ & Ches Limited | Dagenham | 2018 |
| AJ & Co.(Devon) Ltd | Plymouth | 2000 |
| AJ Advancements Ltd | Glasgow | 2023 |
| AJ and Friends C.I.C. | Wirral | 2019 |
| AJ Audiology Ltd | Isleworth | 2025 |
| AJ Blythe Ltd | Maidenhead | 2015 |
| AJ Brighton Limited | Brighton | 2021 |
| AJ Brooksbank Ltd | Kilmacolm | 2008 |
| AJ Care Group Ltd | Stockport | 2026 |
| AJ Care Services Ltd | Coventry | 2021 |
| AJ Care Solution Ltd | Norwich | 2025 |
| AJ Case Management Ltd | London | 2013 |
| AJ Clinical Pharmaceutical Limited | Solihull | 2024 |
| AJ Cockbain Ltd | Leeds | 2020 |
| AJ Collins Holdings Limited | Harrow | 2019 |
| AJ Community Care Ltd | Bradford | 2025 |
| AJ Core Physiotherapy Ltd | Harlow | 2018 |
| AJ Cosmetic Clinic Ltd | Waterlooville | 2023 |
| AJ Cosmetics Ltd | Grimsby | 2024 |
| AJ DEL Mundo Ltd. | Tunbridge Wells | 2015 |
| AJ Dental Care Ltd | Potters Bar | 2023 |
| AJ Dental Healthcare Ltd | Halifax | 2025 |
| AJ Dental Ltd | Woodford Green | 2024 |
| AJ Dentistry Limited | Wilmslow | 2021 |
| AJ Diagnostics Ltd | Stockton-On-Tees | 2025 |
| AJ Drakeley FIC Limited | Cressington Park | 2011 |
| AJ Elite Enabling Support Limited | Chorley | 2021 |
| AJ Endoscopy Ltd | Bromley | 2022 |
| AJ Family Solutions & Consultancy Limited | London | 2014 |
| AJ Haasbroek Ltd | Corsham | 2020 |
| AJ Health Limited | Swindon | 2023 |
| AJ Health Solution Ltd | Altrincham | 2024 |
| AJ Healthcare Limited | London | 2022 |
| AJ Healthcare Services Limited | Brighton | 2016 |
| AJ Implants Limited | Rotherham | 2022 |
| AJ Kelly Orthopaedics Limited | Exeter | 2018 |
| AJ King Radiology Limited | Eastleigh | 2015 |
| AJ Locum Ltd | Wolverhampton | 2024 |
| AJ Locum Services Ltd | Manchester | 2022 |
| AJ Locum Solutions Limited | Manchester | 2009 |
| AJ Medical Enterprise Ltd | Heckmondwike | 2014 |
| AJ Medical Limited | London | 2023 |
| AJ Medical Services Ltd | Birmingham | 2017 |
| AJ Medicare Limited | Wilmslow | 2018 |
| AJ Medico Legal Limited | Manchester | 2024 |
| AJ Mpharm Ltd | Birmingham | 2024 |
| AJ Optical Limited | Bradford | 2017 |
| AJ Optical Services Ltd | Birmingham | 2021 |
| AJ Optics Limited | High Wycombe | 2014 |
| AJ Performance Recovery Ltd | Harlow | 2025 |