| Anchor Wharf (Polesworth) Management Company Limited | Salisbury | 2023 |
| Anchorage (Hamble) Flat Management Limited | Southampton | 2017 |
| Anchorage Apartments Management Ltd | Falmouth | 2025 |
| Anchorage Court Management Company Limited | Truro | 2010 |
| Anchorage Court RTM Company Limited | Ticehurst | 2011 |
| Anchorage Flats(Property Management)Limited(The) | Chatham | 1964 |
| Anchorage Mews Estate (III) Management Company Limited | Darlington | 1994 |
| Anchorage Nuvo Capital Limited | Harrow | 2020 |
| Anchorage Quay Management Company Limited | Preston | 1997 |
| Anchorcourt Limited | London | 1989 |
| Anchorline Properties Ltd | Edinburgh | 2020 |
| Anchorpoint Property Solutions Ltd | Bodmin | 2025 |
| Anchorsholme Flat Management Company Limited | Blackpool | 1994 |
| Anchorside Close RTM Company Limited | Croydon | 2010 |
| Ancient Key Residents Company Limited | Bury St. Edmunds | 2007 |
| Ancliff Square Management Limited | Bradford On Avon | 1987 |
| Ancoats Management Company Limited | Bury | 2002 |
| Ancrum Lodge (Branksome Park) Limited | Bournemouth | 1967 |
| AND Co Group Ltd | Camberley | 2010 |
| Andaria Investments Limited | Knightsbridge, London | 2022 |
| Andena Grange Management Limited | Coleraine | 2004 |
| Anderdons Farm Management Company Limited | Princes Risborough | 1991 |
| Andergrange Properties Limited | London | 1983 |
| Anderida RTM Company Limited | Eastbourne | 2019 |
| Anderson Corps Limited | Grays | 2025 |
| Anderson Court Management Company Ltd | Haslemere | 2016 |
| Anderson Developments (EA) Limited | Newmarket | 2026 |
| Anderson Estates Management Limited | Chelmsford | 2003 |
| Anderson Heights (Norbury) Limited | Royston | 2003 |
| Anderson House Residents Association Limited | Croydon | 1982 |
| Anderson Lets Limited | Barton-Upon-Humber | 2022 |
| Anderson Management Company (Wandsworth) Limited | Battersea | 1986 |
| Anderson MPT Ltd | Worcester Park | 2024 |
| Anderson Property Management (2023) Ltd | Bishops Stortford | 2023 |
| Anderson PS Ltd | London | 2021 |
| Andersons Croft Management Company Limited | Dunstable | 2012 |
| Anderton Grange (Northwich) Management Company Limited | Chester | 2003 |
| Andlers Wood (Liss) Management Company Limited | Bourne End | 2019 |
| Andles Property Management Limited | Maidstone | 2017 |
| Andmark Limited | Bromley | 1995 |
| Andover (36-47 the Elms) Residents Association Limited | Shrewsbury | 1985 |
| Andover Close Residents Limited | Greenford | 2000 |
| Andover Court Management Company Limited | Gloucester | 2005 |
| Andoversford Link Management Limited | Stonehouse | 1990 |
| Andoversford Securities Limited | London | 1973 |
| Andreas Property Group Limited | London | 2022 |
| Andree Court (Highcliffe) Limited | Bournemouth | 1988 |
| Andrew Court (Beckenham) Management Limited | Victoria | 1986 |
| Andrew Court Limited | Croydon | 2003 |
| Andrew Court Management Company Limited | Altrincham | 1981 |
| Andrew Homes (Woodthorpe) Management Company Limited | Nottingham | 2008 |
| Andrew Hunt Holdings Limited | Crawley | 2023 |
| Andrew Lodge Maintenance Ltd | Sturminster Newton | 2019 |
| Andrew M Williams Properties Limited | Llanelli | 2018 |
| Andrew Marshall Residential Properties Ltd | Ferryhill | 2006 |
| Andrew Reed RTM Company Limited | Barnet | 2024 |
| Andrew Sansbury Limited | Thornton Cleveleys | 2013 |
| Andrew's Court Management Co Ltd. | Prescot | 2004 |
| Andrews & Co Property Limited | Great Yarmouth | 2023 |
| Andrews Gate Residents Company Limited | Croydon | 2012 |
| Andrews House Freehold Limited | Edenbridge | 2008 |
| Andrews Lane Limited | Shipston On Stour | 2021 |
| Andrews Lane Management Company Limited | Braintree | 1983 |
| Andrews Property Management Ltd | Hull | 2021 |
| Andrews Property Oversight Limited | Brentwood | 2026 |
| Andrews Road Management Company Ltd | Horsham | 2009 |
| Andrews Yard (Marshfield) Management Company Limited | Bradford-On-Avon | 2026 |
| Andrews Yard Management Company Limited | Stanmore | 2017 |
| Andrewsfield Limited | Harpenden | 2006 |
| Andros (Chulmleigh) Management Company Limited | Chulmleigh | 2024 |
| Andy B Services Ltd | London | 2025 |
| Andy Green Property Limited | Swanley | 2025 |
| Andy Sims Ltd | Camberley | 2022 |
| Andys Rental Ltd | Sutton In Ashfield | 2024 |
| Anello Building Management Limited | Jordans, Bucks | 2021 |
| Anenome Court RTM Company Limited | Bromley | 2023 |
| Anerley 191 Management Limited | London | 2015 |
| Anerley Park RTM Company Limited | Bromley | 2011 |
| Anerley Road Properties Ltd | Leigh-On-Sea | 2017 |
| Anesia Clean Limited | Nottingham | 2017 |
| Anesty Court (Bishopton) Management Company Limited | Stockton-On-Tees | 1995 |
| Aneurin House RTM Company Limited | Caerphilly | 2023 |
| ANF Properties Ltd | London | 2019 |
| ANF Property Scotland Limited | Glasgow | 2017 |
| Anfield Abode Ltd | Liverpool | 2024 |
| Anfield Court Residents' Association Limited | Coventry | 1981 |
| Anfield Property Holdings Limited | Liverpool | 2019 |
| Anfield Road Ltd | Liverpool | 2019 |
| Angarrack Mews Management Company Limited | Hayle | 2001 |
| Angel Apartments Ltd | Hartlepool | 2021 |
| Angel Business Property Limited | Stockport | 2024 |
| Angel Court (Colchester) Management Company Limited | Colchester | 2015 |
| Angel Court (Compton) Maintenance Limited | Alton | 1966 |
| Angel Court (Shaftesbury) Management Company Limited | Gillingham | 2019 |
| Angel Court 9-11 Loampit Freehold Management Company Limited | London | 2021 |
| Angel Court of Monmouth Limited | Bristol | 2017 |
| Angel Court Petworth Limited | Horsham | 2016 |
| Angel Court RMC Limited | Croydon | 2006 |
| Angel Estate Property Management Limited | London | 2006 |
| Angel Heights Hawkinge Limited | Folkestone | 2005 |