| Aerial Scaffolding Limited | Sidcup | 1972 |
| Aerial Solutions (South East) Limited | Gillingham | 2010 |
| Aerial Solutions TV Limited | Leeds | 2021 |
| Aerial SW Ltd | Liverpool | 2025 |
| Aerial Works Ltd | Cockermouth | 2021 |
| Aerials & Cctv by KAL Ltd | Barnsley | 2023 |
| Aerials & Sky Local Ltd | Worcester | 2014 |
| Aerials and Data Installations Ltd | Hassocks | 2018 |
| Aerials-Nw Ltd | Denbigh | 2026 |
| Aerialscans Ltd | Northampton | 2025 |
| Aerialtek Site Solutions Ltd | Liverpool | 2018 |
| Aerify Services Limited | Newbury | 2014 |
| Aeris Building Solutions Ltd | Tunbridge Wells | 2025 |
| Aeris Projects Ltd | Maidstone | 2013 |
| Aeris Services Limited | Huntingdon | 2015 |
| Aeriva Ltd | Rushden | 2025 |
| Aerlift Limited | Hamilton | 2008 |
| Aermec UK Limited | Dartford | 1995 |
| Aermech Limited | Haverfordwest | 2007 |
| Aero Building Systems Ltd | Chorley | 2002 |
| Aero Construction Limited | Pudsey | 2024 |
| Aero Electrical (South Yorkshire) Ltd | Cardiff | 2019 |
| Aero EV Holdings Limited | Nottingham | 2024 |
| Aero EV Maintenance Ltd | Nottingham | 2018 |
| Aero EV Solutions Limited | Nottingham | 2013 |
| Aero Fire & Rescue Service Ltd | London | 2014 |
| Aero Projects Limited | Nottingham | 2019 |
| Aero Property Consultants Limited | Newbury | 2020 |
| Aero Structure UK Limited | Cardiff | 2012 |
| Aero Surveying Limited | Tonypandy | 2012 |
| Aero Tech Paint Ltd | Andover | 2021 |
| Aero Tech Services Limited | Cardiff | 2015 |
| Aero-Tek (UK) Limited | Wakefield | 1992 |
| Aero-Therm Products Ltd | Chandler'S Ford | 2013 |
| AERO7 Ltd | Glasgow | 2026 |
| Aerobarrier UK and Ireland Ltd | Hereford | 2023 |
| Aerobox SC Limited | Godalming | 2025 |
| Aerobuild Limited | Hayes | 2025 |
| Aerocom (Holdings) Limited | Nottingham | 2021 |
| Aerocom (UK) Limited | Chilwell | 2000 |
| Aerocontrols Air Conditioning Ltd | Potters Bar | 2025 |
| Aerof Craighouse Limited | Edinburgh | 2019 |
| Aerofinish Ltd | Gravesend | 2026 |
| Aerofit Limited | Leicester | 1999 |
| Aerofluid Asset Management Ltd | London | 2023 |
| Aerogel UK Limited | Reading | 2013 |
| Aerogel X Ltd | Holywood | 2023 |
| Aeroglide Rollerdoor Systems Ltd | Shrewsbury | 2026 |
| Aerogreen Ltd | Manchester | 2022 |
| Aerogrid Systems Ltd | London | 2026 |
| Aeroheat GAS Ltd | Thornton Heath | 2025 |
| Aeromotive Design Ltd | Swindon | 1998 |
| Aeron Electrical Limited | Edinburgh | 2012 |
| Aeron Fire and Security Limited | Edinburgh | 2016 |
| Aeropark Developments Limited | Southampton | 1989 |
| Aeropick Airport Transfer Limited | Southall | 2022 |
| Aerospray Limited | Gainsborough | 2023 |
| Aerosurface Limited | Stevenage | 2018 |
| Aerotherm Solutions Limited | Southampton | 2025 |
| Aerotruss Limited | Hull | 2010 |
| Aerovision (UK) Ltd | Newcastle Upon Tyne | 2015 |
| Aertec Solutions Limited | Chester | 2012 |
| Aervent Ltd | Bude | 2025 |
| Aervuegroup Ltd | Birmingham | 2025 |
| AES (Angel Electrical Services) Ltd | Banbury | 2006 |
| AES (Coatings) Ltd | Wigston | 2019 |
| AES (Ledbury) Limited | Ledbury | 2017 |
| AES (NW) Limited | Burscough | 2016 |
| AES Barnsley Ltd | Barnsley | 2025 |
| AES Building Services Ltd | St. Ives | 2023 |
| AES Carpenters Ltd | Broxbourne | 2016 |
| AES Construction & Developments Limited | Leeds | 2024 |
| AES Construction Management Consultants Limited | Middlesbrough | 2017 |
| AES Construction NW Limited | Bury | 2024 |
| AES Construction Services Limited | Ilford | 2005 |
| AES Contracting Ltd | Glasgow | 2018 |
| AES Contractors Ltd | Dartford | 2015 |
| AES Electrical & Compliance Services Ltd | Sandbach | 2022 |
| AES Electrical and Building Contractors Ltd | Horley | 2023 |
| AES Electrical Contractors (London) Ltd | East Tilbury | 2017 |
| AES Electrical Contractors Limited | Lancashire | 1999 |
| AES Energy Ltd | Liverpool | 2018 |
| AES Energy Solutions Ltd | St. Ives | 2022 |
| AES Environmental Systems Limited | Hampshire | 1999 |
| AES Equipment Services Ltd | Harpenden | 2015 |
| AES Essex Ltd | Canvey Island | 2015 |
| AES Facilities Ltd | Glasgow | 2023 |
| AES GAS & Electric Ltd | Southall | 2021 |
| AES General Ltd | Romford | 2025 |
| AES Group (Cambs) Ltd | St. Ives | 2021 |
| AES Harrogate Ltd | Harrogate | 2022 |
| AES INT Ltd | Bexleyheath | 2019 |
| AES Lichfield Ltd | Lichfield | 2009 |
| AES Maintenance Limited | High Wycombe | 2008 |
| AES Management Ltd | Glasgow | 2020 |
| AES Mechanical Ltd | Leeds | 2018 |
| AES National Limited | Ipswich | 2011 |
| AES Plant and Sales Ltd | Pontypridd | 2022 |
| AES Plumbing and Heating SW Ltd | Trowbridge | 2026 |
| AES Plumbing Ltd | Weymouth | 2023 |