| A.A.S.G Properties Limited | Southall | 2024 |
| A.A.T. Properties (Herts) Limited | London | 2017 |
| A.A.Z. Properties Limited | London | 2001 |
| A.Ahmad Limited | London | 2015 |
| A.And H.F.(Pontypridd)Limited | Powys | 1964 |
| A.Aqdas Property Ltd | Bury | 2025 |
| A.Archer Property Group Ltd | Portsmouth | 2025 |
| A.B Assets Rentals Ltd | Leeds | 2025 |
| A.B Grand Estates Ltd | Edgware | 2025 |
| A.B Saab Homes Estate Agents Ltd | West Bromwich | 2025 |
| A.B. Advisory & Property Ltd | Manchester | 2026 |
| A.B. Concord Properties Ltd | Ilford | 2024 |
| A.B. Construction Homes Ltd | London | 2024 |
| A.B. FAN Properties Limited | Kingswinford | 2016 |
| A.B. Grosvenor Limited | Worcester | 1997 |
| A.B. Management 2000 Limited | Brighton | 1999 |
| A.B. Mansfield & Sons Ltd. | London | 2024 |
| A.B. Moylan (Fuel Oils) Limited | Saffron Walden | 1968 |
| A.B. Parton & SON Limited | Woore | 1964 |
| A.B. Realty Limited | Oldham | 2019 |
| A.B. Taylor Developments Limited | Cradley Heath | 2023 |
| A.B.C. Danoto Limited | Leicestershire | 1994 |
| A.B.C.T Property Developments Ltd | Barrow-In-Furness | 2026 |
| A.B.G. (Continental( Restaurants Limited | Glasgow | 1970 |
| A.B.L. Structural Projects Limited | Farnham | 1978 |
| A.B.M. Securities Limited | Burgess Hill | 1972 |
| A.B.N.N Properties Limited | London | 2026 |
| A.B.P. Group Limited | Dartford | 2020 |
| A.B.S Property Portfolio Limited | Blackwood | 2017 |
| A.B.S. International Limited | Manchester | 1993 |
| A.B.W Property Management Ltd | Gosport | 2020 |
| A.Booker & SON Limited | Arundel | 1955 |
| A.Brewer Ltd | Aldershot | 2025 |
| A.Brm Property Ltd | Wick | 2025 |
| A.C Luxury Holiday Lets Ltd | London | 2026 |
| A.C Properties (Walsall) Limited | Walsall | 2013 |
| A.C Property Rentals Ltd | Barry | 2025 |
| A.C. Axiom Ltd. | Gloucester | 2003 |
| A.C. Estates Limited | Hitchin | 2003 |
| A.C. Hotels (U.K.) Limited | London | 1991 |
| A.C. Lester Properties Limited | Oxfordshire | 1963 |
| A.C.&S. Storrier Properties Limited | Wellington | 2017 |
| A.C.C. International Limited | Pyrford | 1985 |
| A.C.E Holdings U.K Limited | Birmingham | 2022 |
| A.C.E Property Scotland Ltd | Glasgow | 2023 |
| A.C.E. Solar Green Holdings Limited | Romford | 2018 |
| A.C.G Property Investments Ltd | Coalville | 2024 |
| A.C.Gill,Limited | Nottingham | 1915 |
| A.C.Kendrick & SON (Corn) Limited | West Midlands | 1934 |
| A.C.M.E Homes (Properties) Limited | Southampton | 2019 |
| A.C.T Investment Properties Ltd | Mildenhall | 2018 |
| A.C.W. Investment Properties Limited | Blackpool | 2025 |
| A.C.Winter(Builders)Limited | Surrey | 1952 |
| A.C.Y Properties Limited | London | 2021 |
| A.Camm Limited | Park Row | 1961 |
| A.Carlyle & Co. Limited | Darlington | 1988 |
| A.Classs Properties & General Enterprise Ltd | Cardiff | 2025 |
| A.D Property Ltd | London | 2025 |
| A.D. Holdings (INT) Ltd | Benfleet | 2020 |
| A.D.A Property Services Ltd | Grantham | 2021 |
| A.D.A.B. Ltd. | Liverpool | 2004 |
| A.D.A.M.S. Housing Limited | Birmingham | 1999 |
| A.D.B Property Management Limited | Chorley | 2016 |
| A.D.C. Properties (Loughborough) Limited | Loughborough | 1994 |
| A.D.D Express Properties Ltd | Rochdale | 2017 |
| A.D.E.G. Limited | Plymouth | 2004 |
| A.D.E.S.Property.Management Ltd | Crawley | 2025 |
| A.D.Eclipse Ltd | Croydon | 2019 |
| A.D.F. Property Solutions Ltd | Mansfield | 2024 |
| A.D.Kh Ltd | London | 2020 |
| A.D.M. Associates (Glasgow) Limited | Glasgow | 2003 |
| A.D.P. Properties Limited | Nuneaton | 1997 |
| A.D.R Property Group Ltd | Birmingham | 2024 |
| A.D.R Property Limited | Ashby-De-La-Zouch | 2020 |
| A.D.S Estate Management Ltd | Surrey | 2020 |
| A.D.S. Estates Limited | Warrington | 2005 |
| A.D.S. Properties (Scotland) Limited | Angus | 2003 |
| A.D.T Commercial Property Holdings Limited | Leeds | 2023 |
| A.Davies & Co. (Agency) Limited | | 2002 |
| A.E GEE Rentals Limited | Nottingham | 2020 |
| A.E. & A.L.C. Limited | Stockport | 1983 |
| A.E. & N. Ashton Group Limited | Ely | 1977 |
| A.E. & R. Robinson (Lancaster) Limited | Lancaster | 1944 |
| A.E. Abbiss Limited | Hertford | 1957 |
| A.E. Burt and Company Limited | Darlington | 1977 |
| A.E. Cook Limited | Leicester | 1973 |
| A.E. Genet Holdings Limited | Chertsey | 1972 |
| A.E. Hawkins Properties Limited | West Midlands | 1986 |
| A.E. Lewis & SON Limited | Lymington | 1957 |
| A.E. Maiden Estates Limited | Northampton | 1996 |
| A.E. Maiden Limited | Exeter | 1953 |
| A.E. Management Services Ltd | Berkshire | 1994 |
| A.E. Morris Limited | Doncaster | 1984 |
| A.E. Poxon Limited | Wombourne | 1981 |
| A.E. Securities Limited | Taunton | 2000 |
| A.E. Stokes Properties Limited | Penzance | 1978 |
| A.E. Thorogood Investments Limited | Weybridge | 1964 |
| A.E. Van Laun Limited | Portsmouth | 1981 |
| A.E.& D.A.Thomson Limited | Hertfordshire | 1954 |
| A.E.C. Properties Ltd | Lisburn | 2016 |