| Adelphi Scott Limited | Aberdeen | 2012 |
| Adelphi Wharf One RTM Company Limited | Northwich | 2026 |
| Adelphi Wharf Phases 2 & 3 RTM Company Ltd | Manchester | 2024 |
| Adelville Limited | London | 1997 |
| Adenedge Limited | East Dulwich | 1988 |
| Adenford Limited | London | 1988 |
| Adenowood Limited | London | 2001 |
| Adenpath Limited | Stourport-On-Severn | 1992 |
| Adept Dental Property Limited | Hornchurch | 2023 |
| Adept Housing Ltd | Birmingham | 2019 |
| Adept Inventories Limited | Brentford | 2025 |
| Adept Move Ltd | Wolverhampton | 2019 |
| Adept Property Services Limited | London | 2025 |
| Adepto Capital Limited | Cheltenham | 2022 |
| Ader Court Limited | Dorking | 2008 |
| Ader United Ltd | Crawley | 2010 |
| Ades Lake Conservation Company Limited | Lewes | 2005 |
| Adeste Properties Limited | London | 1999 |
| Adgs Properties Ltd | Clacton-On-Sea | 2025 |
| ADH Property Services Ltd | Newcastle Upon Tyne | 2015 |
| ADI Property Management Ltd | Luton | 2024 |
| Adinway Property Management Limited | London | 2001 |
| Adison Holdings Ltd | Eastbourne | 2022 |
| ADK Mangement Ltd | London | 2019 |
| ADL PD Limited | London | 2024 |
| ADL Solutions Limited | London | 2015 |
| Adler Management Limited | Hayes | 1985 |
| Adler Property Ltd | London | 2025 |
| Adlestrop Property Services Limited | Moreton In Marsh | 2024 |
| Adlington Court Management Limited | Luton | 1969 |
| Adlington Court Residents Company Limited | Croydon | 2011 |
| Adlington Flat Management Limited | Moreton | 2003 |
| Adlington Grange Limited | Stockport | 2007 |
| Adlington House Owners Ltd | London | 2019 |
| Adlington Place Management Company Limited | Altrincham | 2001 |
| Adliv Host Limited | Peterborough | 2020 |
| Adluxe Management Group Ltd | London | 2024 |
| ADM Lettings and Management Ltd | Beckenham | 2025 |
| Adminwise Property Management Limited | | 1986 |
| Admiral Close (Weybridge) Management Co Limited | Croydon | 2011 |
| Admiral Collingwood Court (Block 1) Limited | Northumberland | 2024 |
| Admiral Court (Bridlington) Management Company Limited | Newcastle Upon Tyne | 2003 |
| Admiral Court (Long Sutton) Management Company Limited | Croydon | 2006 |
| Admiral Court Management Company Limited | London | 2002 |
| Admiral Court RTM Company Limited | Southend-On-Sea | 2011 |
| Admiral Gardens Management Company Limited | Newport | 1991 |
| Admiral Gardens Residents Company Limited | Gravesend | 1999 |
| Admiral Heights RTM Company Limited | Lancs | 2008 |
| Admiral House (Camberley) RTM Company Limited | Camberley | 2025 |
| Admiral House (Teddington) RTM Company Limited | Croydon | 2016 |
| Admiral House (Warsash) Management Company Limited | Southampton | 1999 |
| Admiral House RTM Company Limited | London | 2018 |
| Admiral House West Shore (Llandudno) Freehold Company Limited | Conwy | 2021 |
| Admiral Mews Management Company Limited | Gravesend | 2023 |
| Admiral Park (Block 6) Residents Management Company Limited | Hook | 2023 |
| Admiral Park (Tongham) Management Company Limited | Hook | 2021 |
| Admiral Place Management Limited | London | 2005 |
| Admiral Point RTM Company Limited | Blackpool | 2008 |
| Admiral View RTM Company Limited | Lancs | 2008 |
| Admiral's Heights Management Limited | Lyme Regis | 2004 |
| Admiral's Landing (Residents) Management Limited | Cardiff | 1989 |
| Admiral's Point Management Company Limited | Bournemouth | 2006 |
| Admiral's Quay Gosport Limited | Gosport | 2015 |
| Admiral's Quay Management Limited | Falmouth | 1994 |
| Admiral's Wharf Management Company Limited | Bridgwater | 1988 |
| Admirals (Southsea) Management Company Limited | Southsea | 1989 |
| Admirals Court (Freehold) Limited | Cambridge | 2001 |
| Admirals Court (Reading) Limited | Cambridge | 1988 |
| Admirals Court Management Co. Limited | New Milton | 1966 |
| Admirals Court Residents Limited | Borehamwood | 1995 |
| Admirals Court RTM Company Limited | Bournemouth | 2019 |
| Admirals Hard Limited | Plymouth | 1988 |
| Admirals Lodge (RM1) RTM Company Limited | Ilford | 2017 |
| Admirals Management Company Limited | Liverpool | 2004 |
| Admirals Mead Ltd | Cardiff | 2019 |
| Admirals Place Freehold Limited | Portsmouth | 2013 |
| Admirals Place Residents Limited | Portsmouth | 2002 |
| Admirals Quarter Management Company Ltd | Weymouth | 2009 |
| Admirals Reach (Eastbourne) Management Company Limited | Eastbourne | 1995 |
| Admirals Reach Management Company Limited | Kent | 1987 |
| Admirals Sound Property Management Limited | Blackpool | 1998 |
| Admirals View RTM Company Limited | Scarborough | 2025 |
| Admirals Walk 2000 Ltd | Fordingbridge | 2000 |
| Admirals Walk Hythe Limited | Dover | 1978 |
| Admirals Wharf (Southampton) Management Company Limited | Southampton | 2023 |
| Admirals Wood (LOT 2) Management Company Limited | Derby | 2014 |
| Admirals Wood Community Management Company Limited | Derby | 2009 |
| Admiralty Court Flat Management Limited | Eastbourne | 2001 |
| Admiralty Gate Limited | Gillingham | 2013 |
| Admiralty Gate RTM Company Limited | Gravesend | 2021 |
| Admiralty House Flat Management Ltd | Falmouth | 2014 |
| Admiralty House Management Company Limited | Southampton | 2003 |
| Admiralty House Property Management Ltd | Ramsgate | 2020 |
| Admiralty House RTM Company Limited | Plymouth | 2025 |
| Admiralty Park Management Co. Limited | Gravesend | 1991 |
| Admiralty Pier Management Company Limited | Ipswich | 2019 |
| Admiralty Quarter (Portsmouth) Management Limited | Cambridge | 2005 |
| Admiralty Residents Association Limited | Arundel | 2000 |
| Admiralty ROW (East END) RTM Company Limited | Plymouth | 2025 |
| Admiralty Way Apartments Limited | Teddington | 2004 |