| Auracourt Management Limited | London | 2024 |
| Auragrand Property Management Limited | London | 2002 |
| Aurajewel Property Management Limited | Solihull | 2001 |
| Aurelia Arkiva Properties Ltd | Sheffield | 2026 |
| Aurelo Ltd | Broxbourne | 2025 |
| Auriol Mansions Residents Association Limited | 32 Blythe Road | 1990 |
| Auriol Road 37 Limited | London | 2003 |
| Auroom Ltd | London | 2025 |
| Aurora (Portishead) Management Company Limited | Salisbury | 2012 |
| Aurora 4 Investments Ltd | Ilford | 2014 |
| Aurora Court Management (Barry) Limited | Cardiff | 2006 |
| Aurora Estate RTM Company Limited | London | 2024 |
| Aurora Freehold Ltd | New Milton | 2021 |
| Aurora Goring Limited | Arundel | 2011 |
| Aurora Management Company Limited | Sidmouth | 1984 |
| Aurora NA Mara Management Company Limited | Newry | 2006 |
| Aurora Property Developments Limited | Mold | 2016 |
| Aurora Swansea Marina (Management) RTM Company Limited | Croydon | 2011 |
| Aurora Swansea Marina Limited | Croydon | 2010 |
| Aurora Team Ltd | Croydon | 2021 |
| Aurum Green Management Company Limited | Southampton | 2018 |
| Aurum Haven Properties Ltd | Breachwood Green | 2024 |
| Aurum Hove Limited | Hove | 2020 |
| Aurum Ustay London Ltd | London | 2025 |
| Ausplan Limited | | 1986 |
| Austen Court (Hilsea) Residents Company Limited | Peterborough | 2011 |
| Austen Fields Management Company Limited | Derby | 2016 |
| Austen Grange Management Company Limited | Birmingham | 2017 |
| Austen House Borehamwood Management Limited | Borehamwood | 2022 |
| Austen Meadows (Medstead) Management Company Limited | Ringwood | 2016 |
| Austen Park (Alton) Management Co. Limited | Alton | 1985 |
| Austens Drive (Sevenoaks) Limited | Sevenoaks | 2000 |
| Auster Court Management Company Ltd | Tonbridge | 2020 |
| Auster Meadows (Rearsby) Residents Management Company Limited | Peterborough | 2026 |
| Auster Place Apartments (Brightwell Lakes) Residents Management Company Limited | Bury St. Edmunds | 2025 |
| Austin Court (Cambridge) Management Company Limited | Cambridge | 2014 |
| Austin Court Management Company Limited | Croydon | 1999 |
| Austin Court Residents Association Limited | Stockport | 1971 |
| Austin Heath Management Ltd | Nottingham | 2018 |
| Austin House (Bristol) Limited | Downend | 2000 |
| Austin House (Surbiton) Residents Association Limited | West Molesey | 1961 |
| Austin House RTM Company Limited | Corby | 2014 |
| Austin Park (Ringwood) Management Company Limited | Ringwood | 2015 |
| Austin Place RTM Company Limited | Hindhead | 2025 |
| Austin Street Hunstanton Ltd | Peterborough | 2025 |
| Austin View (Longbridge Town Centre) Management Company Limited | Derby | 2021 |
| Austins Property Services & Development Ltd | Ashford | 2013 |
| Australia Court Garages Ltd | Ely | 2021 |
| Australia Court Limited | Ely | 2000 |
| Austyns Place Management Company Limited | Epsom | 2003 |
| Autoclaim Limited | Berkshire | 1983 |
| Autolearn Limited | Macclesfield | 1992 |
| Autumn Brook (Yate) Management Company Limited | Bristol | 2015 |
| Autumn Close Limited | Great Yarmouth | 2023 |
| Autumn Court (Poole) Limited | Bournemouth | 2002 |
| Autumn Ford Management Company Limited | Gateshead | 2024 |
| Autumn Gate Management Company Ltd | Southsea | 2021 |
| Autumn Place (Southampton) Management Limited | Southampton | 1995 |
| Autumn Rise Residents Limited | London | 2011 |
| Auty Square Management Company Limited | Leeds | 2015 |
| AV Pest Control Ltd | London | 2025 |
| AVA Enterprises Ltd | Gateshead | 2025 |
| AVA House Management Company Limited | Newry | 2004 |
| Ava&Judy Ltd | Liverpool | 2025 |
| Avalen Way Maintenance Company Limited | Launceston | 2023 |
| Avalon (Bath) Management Limited | Croydon | 1999 |
| Avalon (Management Company) Limited | Taunton | 2005 |
| Avalon (Mansfield) Management Company Limited | Mansfield | 2018 |
| Avalon 2015 Limited | Christchurch | 2015 |
| Avalon Court Ltd | Altrincham | 2014 |
| Avalon Court Management Company Limited | Swindon | 2002 |
| Avalon Court Rothwell Ltd | Kettering | 2017 |
| Avalon Grove Management Company Limited | Bristol | 2026 |
| Avalon House (Minehead) Management Company Limited | Taunton | 2007 |
| Avalon House 260 Limited | Ashford | 2018 |
| Avalon House Management Company Limited(The) | Bristol | 1985 |
| Avalon Management (Brighton) Limited | Brighton | 2003 |
| Avalon Management (Rothwell) Company Limited | Northampton | 1990 |
| Avalon Management Company Limited | Lingfield | 2007 |
| Avalon Mews High Street Limited | Glastonbury | 2004 |
| Avalon Mews Limited | Glastonbury | 2004 |
| Avalon Mews Silver Street Limited | Wells | 2004 |
| Avalon Phase 2 Management Company Limited | York | 2026 |
| Avalon Priory Management CLG Ltd | Bridgwater | 2026 |
| Avalon Priory Residential CLG Ltd | Bridgwater | 2026 |
| Avalon Properties & Services Limited | Barnet | 2014 |
| Avalon Residents Management Company Limited | Reading | 2005 |
| Avalon Somerset Ltd | Butleigh | 2025 |
| Avant Garde (West Molesey) Management Company Limited | Leatherhead | 2005 |
| Avant Glasgow Ltd | Glasgow | 2022 |
| Avant-Garde Property Management Limited | Seven Kings | 2012 |
| Avante (Coxheath) Management Limited | Maidstone | 2007 |
| Avante Management Company (Kingston) Limited | Camden | 2002 |
| Avanti Enterprises Ltd | London | 2013 |
| AVD Property Solutions Ltd | London | 2025 |
| Avebec Residents Association Limited | London | 1965 |
| Avebury Court (Exmouth) Limited | Exmouth | 2011 |
| Avebury House Management Limited | Swindon | 2015 |
| Avebury House Residents Management Company Limited | London | 2002 |
| Avebury Management (Langney) Limited | Eastbourne | 2020 |