| Aegisra UK Ltd | Ipswich | 2026 |
| Aegissec Ltd | Essex | 2025 |
| Aegistech Solutions Ltd | London | 2023 |
| Aegletes Holdco Limited | London | 2017 |
| Aegletes II Holdco Limited | London | 2020 |
| Aegletes III Holdco Limited | Reading | 2021 |
| Aego Investments Limited | London | 2010 |
| Aegon Asset Management UK Corporate Services Ltd | Edinburgh | 2026 |
| Aegon EDC Limited | Edinburgh | 2009 |
| Aegon Investment Solutions - Nominee 1 (Gross) Ltd. | Edinburgh | 2011 |
| Aegon Investment Solutions - Nominee 2 (NET) Ltd. | Edinburgh | 2011 |
| Aegon Investment Solutions - Nominee 3 (ISA) Ltd. | Edinburgh | 2011 |
| Aegon Investment Solutions Ltd. | Edinburgh | 2011 |
| Aegon Pension Trustee Limited | London | 2004 |
| Aegon Sipp Nominee 2 Limited | Edinburgh | 2017 |
| Aegon Sipp Nominee Ltd | Edinburgh | 2011 |
| Aegon UK Corporate Services Limited | Edinburgh | 1996 |
| Aegon UK Property Fund Limited | London | 1999 |
| Aegys Smart Care Ltd | London | 2019 |
| AEH Electrical Installations Ltd | Thornton Cleveleys | 2017 |
| AEH Staffing Ltd | London | 2024 |
| Aehd Limited | Bolton | 2016 |
| AEI Property Maintenance Limited | St Albans | 2024 |
| AEI Prospects Limited | Nottingham | 2014 |
| Aeim Group Ltd | Chatham | 2017 |
| Aeiou Limited | Newport | 2015 |
| Aeisle Ltd | Dagenham | 2022 |
| AEJ Investments Ltd | London | 2017 |
| AEK Partners Ltd | London | 2025 |
| AEK Trading Ltd. | London | 2007 |
| Aekay Ltd | London | 2011 |
| AEL - Limassol Limited | Altrincham | 2015 |
| AEL Capital Ltd | Colwyn Bay | 2013 |
| AEL Estimating Limited | Warrington | 2011 |
| Aelenduria Limited | Bristol | 2021 |
| Aelius Consulting Limited | London | 2017 |
| Aelius Group Ltd | Uxbridge | 2022 |
| Aeliza Ltd | Ashford | 2020 |
| Aelml Ltd | London | 2024 |
| Aelr Ltd | Woking | 2024 |
| Aelux Cleaning Services Ltd | Bradford | 2025 |
| Aelys Ltd | London | 2025 |
| AEM Academy Limited | London | 2021 |
| AEM Contractors Ltd | Southport | 2017 |
| AEM Oxford Limited | Wolverhampton | 2025 |
| AEM Plastics Limited | Stalybridge | 2021 |
| Aema Tech Limited | Tonbridge | 2014 |
| Aemc Limited | Bangor | 2021 |
| Aemconsultants Ltd | Preston | 2025 |
| Aemete Core Support Services Ltd | Newark | 2024 |
| Aemg Europe Limited | Stockport | 2013 |
| Aemilius Konsulting Ltd | London | 2025 |
| Aems Accounting Limited | London | 2024 |
| Aems Recruitment Ltd | Coventry | 2026 |
| AEMSMARTIN91 Limited | South Queensferry | 2013 |
| Aeneid Limited | Guildford | 2016 |
| Aenic Ltd | Burton-On-Trent | 2025 |
| AEO Associates Limited | Redhill | 2014 |
| AEO Capital Ltd | Barnet | 2025 |
| AEO Investments Limited | Barnet | 2018 |
| AEO Trading Ltd | London | 2009 |
| Aeol Ltd | London | 2010 |
| Aeolis Advisory Limited | Beckenham | 2017 |
| Aeolus Drone Cleaning Ltd | Epsom | 2025 |
| Aeolus Engineering Ltd | Warrington | 2025 |
| Aeon Business Services Limited | Sheffield | 2012 |
| Aeon Electronic Protection Systems Ltd | Ilford | 1999 |
| Aeon Finance Technology Limited | Christchurch | 2011 |
| Aeon Global Limited | London | 2013 |
| Aeon Green Subsurface Limited | Hertford | 2011 |
| Aeon Nursing Ltd | Ilford | 2018 |
| Aeon Recruitment Limited | Harrow | 2022 |
| Aeon Security Ltd | Slough | 2018 |
| Aeon Ventures Limited | Christchurch | 2003 |
| Aeonaptro Ventures Ltd | London | 2026 |
| AEP Horticulture Ltd | Leeds | 2022 |
| AEP Standard Limited | London | 2025 |
| AEPOLANGCOS2018 Limited | Greenwich | 2021 |
| Aeptrade Ltd | Diss | 2025 |
| Aeqea Consulting Limited | London | 2019 |
| Aequalis Payroll Ltd | Basildon | 2022 |
| Aequatech UK Limited | Chesterfield | 2017 |
| Aequitas Africa Limited | London | 2019 |
| Aequitas Business Advisory Ltd | Bexley | 2023 |
| Aequitas Commercial Services Ltd | Lutterworth | 2018 |
| Aequitas Consulting Limited | St. Albans | 2009 |
| Aequitas Global Limited | London | 2013 |
| Aequitas International Limited | Duxford | 2024 |
| Aequitas Management Services Ltd | Coventry | 2024 |
| Aequitas Search Limited | Chudleigh | 2013 |
| Aequitasmove Limited | London | 2024 |
| Aequoreus Limited | London | 2024 |
| Aequotech Management Ltd | London | 2013 |
| Aequus Limited | Surrey | 2000 |
| AER Automotive Limited | Redditch | 2021 |
| AER Collective Limited | Fareham | 2024 |
| AER Consulting Services Limited | Fakenham | 2022 |
| AER Garden Services Ltd | Stone | 2020 |
| AER Soleir Management (UK) Limited | Doncaster | 2021 |
| AER Solutions Ltd | London | 2024 |