| Artillery Mews Management Company Limited | Farnham | 1998 |
| Artillery Mews Resident Management Company Ltd | Rayleigh | 2024 |
| Artillery Road Group Limited | Godalming | 2020 |
| Artington Walk (Residents Association) Limited | Guildford | 1980 |
| Artinuth Managements Limited | London | 1975 |
| Artisan Place Residents Management Company Limited | Waltham Cross | 2014 |
| Artisan Property Management Limited | Brighouse | 2000 |
| Artisan View Management Company Limited | Rotherham | 2023 |
| Artisans Residents Co. Limited | London | 2004 |
| Artist Court (N1) RTM Company Ltd | London | 2025 |
| Artium Magister Limited | London | 2014 |
| Artizan Road (Northampton) Resident Management Group Limited | Northampton | 2025 |
| Artman Management Limited | London | 2012 |
| Artmen Lodge Ltd | Brombrough, Wirral | 2022 |
| Arto Investments Ltd | Mitcham | 2017 |
| Artodentro Properties Ltd | London | 2021 |
| Arton Court Residents Association Limited | South Shields | 2001 |
| Arts Apartments RTM Company Limited | London | 2023 |
| Artscene Management Company Ltd | London | 2024 |
| Arturo Gulla Asset Management Limited | Glossop | 2025 |
| Artwell-Uk Ltd | Cardiff | 2018 |
| Artworks (Hitchin) Resident Management Company Limited | Hemel Hempstead | 2016 |
| Aruman Ltd | Orpington | 2021 |
| Arun Court Horsham RTM Company Limited | Horsham | 2026 |
| Arun Gardens (Horsham) Management Company Limited | Horsham | 2009 |
| Arun House Limited | St Leonards On Sea | 2005 |
| Arun House RTM Company Limited | St Leonards On Sea | 2005 |
| Arun Lodge (Freehold) Ltd | Eastbourne | 2001 |
| Arun Management Co. Limited | Horsham | 1982 |
| Arun Place Management Company Limited | Bognor Regis | 2015 |
| Arun Place Phase II Management Limited | Croydon | 2003 |
| Arun Place Residents Management Limited | Croydon | 2002 |
| Arun Prospect (Pulborough) Limited | Winchester | 1992 |
| Arundale (Kingston) Residents Association Limited | Surrey | 1978 |
| Arundale Flats Management Limited | Stockport | 1983 |
| Arundale Properties Limited | Stourbridge | 2015 |
| Arundale Residents Management Company Limited | Pulborough | 2012 |
| Arundale Walk Residents Management Company Limited | Horsham | 2015 |
| Arundel (Sidcup) Management Company Limited | Sidcup | 1982 |
| Arundel Close Management Company Limited(The) | Eastbourne | 1979 |
| Arundel Court (Astwood) Management Company Ltd | Newport Pagnell | 2023 |
| Arundel Court (Barnes) Limited | London | 1986 |
| Arundel Court (Beckenham Grove) Management Limited | Bromley | 1971 |
| Arundel Court (Bradford) Management Company Limited | Keighley | 1992 |
| Arundel Court (Ferring) Management Limited | Worthing | 1971 |
| Arundel Court Freehold Limited | London | 2017 |
| Arundel Court Limited | Dartford | 2018 |
| Arundel Court Management Limited | Hereford | 1994 |
| Arundel Court Residents' Association (Slough) Limited | Windsor | 1971 |
| Arundel Estates Ltd | London | 2026 |
| Arundel Gardens (Bromham) Limited | Bedford | 2013 |
| Arundel Gardens Management Co Ltd | London | 2020 |
| Arundel Gardens Property Management Limited | Uxbridge | 2015 |
| Arundel Gate Management Company Ltd | Dartford | 2025 |
| Arundel House (Bristol) Limited | Croydon | 2016 |
| Arundel House (Eastbourne) Ltd | Epsom | 2005 |
| Arundel House (Hove) Management Company Limited | Shoreham-By-Sea | 1996 |
| Arundel House Freehold Limited | Shoreham-By-Sea | 1997 |
| Arundel House Management Company Limited | Tunbridge Wells | 1991 |
| Arundel House South Croydon (Freehold) Limited | Sutton | 2001 |
| Arundel Howe Management Company Limited | Whitby | 2007 |
| Arundel Keep (Eastbourne) Residents' Association Limited | Eastbourne | 1971 |
| Arundel Limited | Shrewsbury | 1991 |
| Arundel Lodge (Salisbury Avenue) Management Co. Limited | Borehamwood | 1965 |
| Arundel Lodge Limited | London | 1997 |
| Arundel Mansions Freehold Company Limited | London | 2003 |
| Arundel Mount Pleasant Land Ltd | Arundel | 2010 |
| Arundel Place Management Limited | Salisbury | 2011 |
| Arundel Place Properties Limited | | 2000 |
| Arundel Place Residents Company Limited | Brighton | 2002 |
| Arundel Property & Marketing Ltd | Brighton | 2019 |
| Arundel Property Management Ltd | Edgware | 2019 |
| Arundel RTM Company Limited | Eastbourne | 2018 |
| Arundel Square (Islington) Limited | London | 1989 |
| Arundel Street Management Limited | Fareham | 2019 |
| Arundel View Management Company Limited | Chipping Norton | 2006 |
| Arundel Villas Residents Association Limited | Hove | 1986 |
| Arundel Way Management Company Limited | Highcliffe | 1968 |
| Arundell Court (Weston-Super-Mare) Limited | Weston-Super-Mare | 1974 |
| ARV Estates Limited | Hounslow | 2019 |
| Arvon House Management Company Limited | Maidenhead | 1987 |
| Arvor (Maenporth) Management Limited | Penryn | 2006 |
| Arwenack House Management Company Limited | Newquay | 2023 |
| Arwinoso Freehold Management Ltd | Stratford-Upon-Avon | 2014 |
| Arya Court (Eastbourne) Limited | Polegate | 1986 |
| Arya Housing Ltd | Stockport | 2025 |
| Arzoyi Property Management Limited | Birmingham | 2025 |
| AS Wilson Properties Limited | Glasgow | 2021 |
| ASA Court (Management) Co. Limited | London | 1977 |
| ASA Flats Limited | Aberdeen | 2019 |
| ASA Leasing Limited | Aberdeen | 2019 |
| ASA Lets Limited | Aberdeen | 2019 |
| ASA Letting Limited | Aberdeen | 2019 |
| ASA Properties Letting Limited | Aberdeen | 2019 |
| ASA Property Leasing Limited | Aberdeen | 2019 |
| ASA UK Homes Ltd | Forest Gate | 2025 |
| Asaf ALI Ltd | Huddersfield | 2026 |
| Asam Holdings Limited | Leeds | 2024 |
| Asamoah Property Group Ltd | London | 2020 |
| Asante Homes Ltd Ltd | London | 2025 |