| Alcester Park (Maisonettes) Management Company Limited | Hemel Hempstead | 2021 |
| Alchemi of Falmouth Limited | Ivybridge | 2015 |
| Alchemist Housing Limited | Workington | 2021 |
| Alchemy (Myrtle Street) Management Company Limited | Hemel Hempstead | 2005 |
| Alcibald Management Company Limited | Harlow | 2007 |
| Alcj Properties Limited | Chester | 2016 |
| Alcock House RTM Company Ltd | London | 2018 |
| Alcombe Hall Management Company Limited | Minehead | 2012 |
| Alcombe RTM Company Ltd | London | 2014 |
| Alconbury Apartments (Parcels 9 & 10A) Management Company Limited | Wilmslow | 2024 |
| Alconbury Apartments Residents Management Company Limited | Northampton | 2026 |
| Alcott Grove Management Company Limited | Birmingham | 2006 |
| Alcroft Grange Ltd | Faversham | 2025 |
| ALD Property Management Ltd | Milton Keynes | 2024 |
| Alda Builders Ltd. | Liverpool | 2025 |
| Aldberry Green Management Company Limited | Luton | 2003 |
| Aldborough Court Limited | Ilford | 1975 |
| Aldbourne Properties Limited | Wakefield | 1984 |
| Aldbury Court Management Company Limited | Shrewsbury | 1996 |
| Aldea Bella (NO.6) Limited | | 1989 |
| Aldeburgh House (Freehold) Co Ltd | Horley | 2022 |
| Aldeburgh Lodge Management Company Limited | Norwich | 1980 |
| Aldeburn Property (Residents) Company Limited | Brighton | 1959 |
| Aldeke Ltd | Liverpool | 2024 |
| Aldenbrook RTM Company Ltd | Bolton | 2023 |
| Aldendrive Limited | London | 1989 |
| Aldenham Court RTM Company Limited | Eastbourne | 2022 |
| Aldenham Manor Estate Management (NO 1) Limited | Borehamwood | 1996 |
| Aldenham Road (Bushey) Management Company Limited | Hoddesdon | 2013 |
| Aldenholme Estate Residents Management Company Limited | Weybridge | 2001 |
| Alder Court (Luton) Limited | Cardiff | 1984 |
| Alder Grange Estate Limited | Liverpool | 2025 |
| Alder Grange Management Ltd | Walsall | 2022 |
| Alder Green Management Company Limited | Camberley | 2022 |
| Alder Grove Management Company Limited | Boston | 1997 |
| Alder Heights Management Company Limited | Altrincham | 2003 |
| Alder House RTM Company Limited | London | 2025 |
| Alder Lodge Limited | Brentwood | 2022 |
| Alder Meadow (Creeting) Management Company Limited | Ipswich | 2022 |
| Alder Quarter Freehold Management Limited | Fleet | 2018 |
| Alder Residents Association Limited | Leighton Buzzard | 1989 |
| Alder Securities Limited | Wimbledon | 1961 |
| Alder View (Harwell) Management Company Limited | Salisbury | 2016 |
| Alder Wood Courtyard Management Limited | Haslemere | 2016 |
| Alderbourne (Ascot) Management Co. Limited | Windsor | 2006 |
| Alderbrook (Heathfield Road) Management Company Limited | Beaconsfield | 2023 |
| Alderbrook Management Company (Five Oak Green Tonbridge) Limited | Tonbridge | 2004 |
| Alderbrook Management Services Limited | Solihull | 2017 |
| Alderbrook Manor Residential Management Company Limited | Hoddesdon | 2026 |
| Alderbrook Road Residents Association Limited | Bristol | 1986 |
| Alderbrook Spinney Management Company Limited | Solihull | 2000 |
| Alderbuild (NO.1) Management Company Limited | Chigwell | 1988 |
| Alderbury Management Limited | New Milton | 1990 |
| Alderfield Freeholders Association Limited | Horndean | 2002 |
| Alderheim Homes Ltd | Uxbridge | 2020 |
| Alderhithe Gates Ltd | Birmingham | 2022 |
| Alderholt 2 (Residents Management Company) Ltd | Camberley | 2023 |
| Alderhurst Englefield Green MAN Co Ltd | Beaconsfield | 2024 |
| Alderley Court Management Limited | Cheadle | 1973 |
| Alderley Gate (Congleton) Management Company Limited | Tarporley | 2018 |
| Alderley Historic Quarter Estate Management Company Limited | Manchester | 2018 |
| Alderley Historic Quarter Residents Management Company Limited | Manchester | 2017 |
| Alderley Lodge Limited | Altrincham | 1970 |
| Alderley Lodge Management Company Limited | Manchester | 2006 |
| Alderley Way 91119 Ltd | Stockport | 2019 |
| Alderman Park (Hasland) Management Company Limited | York | 2019 |
| Alderman Walk (Ipswich) Management Company Limited | Sudbury | 2004 |
| Aldermans Green Management Services (Coventry) Limited | Hinckley | 2018 |
| Aldermans Park Management Company Limited | Bristol | 2004 |
| Aldermead Management Ltd | Telford | 2026 |
| Aldermed Flat Management Limited | London | 1998 |
| Aldermen Court (N11) RTM Company Limited | Borehamwood | 2019 |
| Aldermere (Cheshunt) Management Company Limited | Hertford | 2010 |
| Alderminster Farm Management Company Limited | Stratford-Upon-Avon | 1993 |
| Aldermoor Flat Management Company I Limited | Southampton | 1995 |
| Aldermoor Flat Management Company II Limited | Southampton | 1995 |
| Alderney Court (Management) Limited | Worthing | 2004 |
| Alders Court Management Company Limited | Southampton | 1986 |
| Alders Edge (Scotby) Management Company Limited | Carlisle | 2013 |
| Alders Grove (Caterham) Management Company Limited | Victoria | 2016 |
| Alders Heath Management Company Limited | Bristol | 1984 |
| Aldersbrook Residents Association Ltd | Brentwood | 2004 |
| Aldersey MB Ltd | Waltham Abbey | 2021 |
| Aldersey Oaks Residents Management Company Limited | Chester | 2020 |
| Aldersey Park Management Company Limited | Chester | 1990 |
| Aldersgate Court Management Company Limited | Hove | 1990 |
| Aldersgate Residents Management Company Limited | London | 2006 |
| Aldershawe Management Limited | Lichfield | 1998 |
| Aldershot Management Company Limited | Guildford | 2014 |
| Aldershot Rooms Ltd | Farnham | 2026 |
| Aldersley Management Limited | Tettenhall | 1985 |
| Alderson House Limited | Harrogate | 1999 |
| Alderson Mews Management Company Ltd | Beverley | 2025 |
| Alderstead Property Management Services Limited | Cardiff | 2004 |
| Alderstone Park and Oakview Quarter (Great Eccleston) Management Company Limited | Hoddesdon | 2025 |
| Aldersyde Court Limited | York | 1965 |
| Alderton Chase Management Company Limited | London | 2018 |
| Alderton Court Residents Association Limited | Hailsham | 1959 |
| Alderton Mews Management Company Limited | Leigh On Sea | 1996 |
| Alderton Property Management Ltd | Hereford | 2018 |