| Augusta & Co Limited | London | 2002 |
| Augusta & Partners Ltd | London | 2018 |
| Augusta 016 Limited | London | 2021 |
| Augusta 017 Limited | London | 2021 |
| Augusta 018 Limited | London | 2021 |
| Augusta Bay Holdings Ltd | Llanelli | 2026 |
| Augusta Bidco Limited | London | 2025 |
| Augusta Family Investments | Ilkley | 2026 |
| Augusta Holdco Limited | London | 2025 |
| Augusta Midco 1 Limited | London | 2025 |
| Augusta Midco Limited | Leeds | 2020 |
| Augusta Pool 1 Canada Limited | London | 2019 |
| Augusta Pool 1 Spain Limited | London | 2019 |
| Augusta Pool 1 UK Limited | London | 2019 |
| Augusta Pool 4 Canada Limited | London | 2020 |
| Augusta Pool 5 UK Limited | London | 2026 |
| Augusta Pool 523 Limited | London | 2020 |
| Augusta Property Group Limited | Eastleigh | 2021 |
| Augusta Services (Yorkshire) Limited | York | 2018 |
| Augusta Topco Limited | Leeds | 2020 |
| Augusta Ventures Holdings Limited | London | 2020 |
| Augusta Ventures Limited | London | 2020 |
| Augustin Investment Ltd | Thornton Heath | 2019 |
| Augustoceancoral Investments Limited | Rickmansworth | 2009 |
| Augustus 1 Limited | Brentford | 2004 |
| Augustus 2 Limited | Brentford | 2004 |
| Augustus Bidco Limited | London | 2026 |
| Augustus Industries Ltd | Newport | 2025 |
| Augustus Management (Freehold) Limited | London | 1999 |
| Augustus Midco Limited | London | 2026 |
| Augustus Nominees Limited | London | 2021 |
| Auhg Consulting Limited | London | 2014 |
| Auhha Ltd | Brentford | 2024 |
| Auiy Group Limited | Coventry | 2025 |
| Aujla Group Ltd | Derby | 2020 |
| Aujla Investments Limited | Tonbridge | 2013 |
| AUK DB Scheme Trustees Limited | Edinburgh | 2013 |
| AUK Investments Group Ltd | Bath | 2024 |
| AUK Investments Holdings Limited | Hertfordshire | 2020 |
| AUK Properties Holdings Limited | Fleetwood | 2020 |
| Auka Edwin & Associates Ltd | Peterborough | 2024 |
| Aukera UK Services Limited | London | 2024 |
| Aukin Ltd | London | 2025 |
| AUL (BBI Ascension) Nominees Limited | London | 2026 |
| AUL Assurance Ltd | Wells | 2008 |
| AUL MMF Nominees Limited | London | 2026 |
| AUL Underwriting Agency Ltd | Wells | 2006 |
| Aula (2) Limited | Cambridge | 2013 |
| Aula Investment Corporation Ltd | London | 2022 |
| Aulakh Holdings (Solihull) Ltd | Birmingham | 2021 |
| Aulakh Holdings Ltd | Birmingham | 2018 |
| Auld Cross Keys Inn EOT Limited | Hexham | 2025 |
| Aulk Ltd | Bradford | 2023 |
| Aultridia Ltd | Hereford | 2018 |
| AUM Assets Limited | London | 2017 |
| AUM Beloved Light Limited | Kingston Upon Thames | 2011 |
| AUM Brokers Ltd | Ruislip, | 2025 |
| AUM Capital Solutions Limited | Whetstone | 2026 |
| AUM Investco Limited | Walsall | 2026 |
| AUM Private Limited | Harrow | 2009 |
| AUM Savings Ltd | London | 2015 |
| AUM Ventures Ltd | London | 2015 |
| Aumex Holdings Limited | London | 2018 |
| Aumion Launchpad Ltd | London | 2024 |
| Aumnia Group Limited | London | 2026 |
| Aungier Lefevres Limited | Penzance | 2016 |
| AUP Group Limited | Polegate | 2022 |
| AUP Investments Ltd | Towcester | 2021 |
| AUR Investments Limited | Crowborough | 2024 |
| AUR4 Holdings Ltd | London | 2026 |
| Aura (GAS) Holdings Limited | Waterlooville | 2021 |
| Aura (UK) Holdings Limited | Derby | 2018 |
| Aura Capital Partners Ltd | London | 2026 |
| Aura Capital Services Ltd | London | 2015 |
| Aura Capital Trading Ltd | Liverpool | 2026 |
| Aura DC Limited | Leeds | 2015 |
| Aura FIN Ltd | London | 2026 |
| Aura Fintech Ltd | Stockton-On-Tees | 2025 |
| Aura FX Trading Limited | Maidstone | 2026 |
| Aura Group (Midlands) Ltd | Stafford | 2025 |
| Aura Group Holdings Limited | Ipswich | 2025 |
| Aura Infrastructure Limited | London | 2026 |
| Aura Journeys (Group) Limited | Newark | 2021 |
| Aura Mortgages Limited | Southend-On-Sea | 2023 |
| Aura N Limited | Amersham | 2014 |
| Aura Pico 1 Limited | Cheltenham | 2023 |
| Aura Pico 2 Ltd | Cheltenham | 2023 |
| Aura Pico 3 Ltd | Bristol | 2023 |
| Aura Power Americas Limited | Bristol | 2022 |
| Aura Power Bess Ltd | Bristol | 2020 |
| Aura Power Fawkes Limited | Bristol | 2024 |
| Aura Power Holding Limited | Bristol | 2022 |
| Aura Power Operations Limited | Bristol | 2024 |
| Aura Power Phoenix 1 Limited | Bristol | 2024 |
| Aura Power Phoenix 2 Limited | Bristol | 2024 |
| Aura Power Phoenix 3 Limited | Bristol | 2024 |
| Aura Power Phoenix Limited | Bristol | 2024 |
| Aura Power Solar UK Ltd | Bristol | 2019 |
| Aura Power Thunderbird 1 Limited | Bristol | 2025 |
| Aura Power Thunderbird 2 Limited | Bristol | 2025 |