| A. Howe and Sons Limited | Lincoln | 1972 |
| A. Hughes (Cookstown), Limited | Cookstown | 1953 |
| A. I. Management Limited | Kings Lynn | 2012 |
| A. J, & K. Enterprises Limited | Wilmslow | 2004 |
| A. J. Harris Ltd | Stratford-Upon-Avon | 2024 |
| A. J. Howard Limited | Holt | 1976 |
| A. J. Immobilien Limited | Waltham Cross | 2012 |
| A. J. Laurie Properties Limited | Hamilton | 2001 |
| A. J. Prichard (Deganwy) Limited | Deganwy | 1947 |
| A. J. Prosser & Sons Limited | Birmingham | 1981 |
| A. James (Embroiderers) Limited | Leigh On Sea | 1948 |
| A. Jones Properties Ltd | London | 2023 |
| A. Jones Property Holdings Ltd | Sheffield | 2022 |
| A. Jones Property Investments Ltd | Birmingham | 2022 |
| A. Karim Holdings Ltd | Reading | 2020 |
| A. Keller & Sons (Holdings) Limited | London | 1944 |
| A. L. G. Investments (Wigan) Limited | Wigan | 1963 |
| A. L. I. Property Limited | Barnet | 1975 |
| A. L. Properties (UK) Limited | Leicester | 2003 |
| A. Lamari Property Management Limited | West Molesey | 2015 |
| A. Lambert Flat Management Limited | Bournemouth | 1972 |
| A. Lambert Limited | Salisbury | 1994 |
| A. M. Bell (Properties) Limited | Sutton | 1978 |
| A. M. Macdonald (Electrical Engineers) Limited | Fort William | 1977 |
| A. Manning Property Investments Limited | Reading | 2016 |
| A. Mayne & SON Ltd | Bolton | 2016 |
| A. Mccallum (Properties) Limited | Stirling | 1993 |
| A. Murray Investments Limited | Motherwell | 1998 |
| A. N. Quinn Limited | Potters Bar | 1989 |
| A. Newton & Sons Limited | Epping | 1928 |
| A. Nicholls Enterprises Ltd | Halesowen | 2016 |
| A. P. 10 Ltd | Chester | 2018 |
| A. P. Property Services (Hull) Ltd | Hull | 2009 |
| A. Properties Ltd | London | 2026 |
| A. Q. Properties Limited | Belfast | 1987 |
| A. R. & V. Properties (NO 2) Limited | London | 2019 |
| A. Rose Limited | Manchester | 1996 |
| A. Rosen (Cardiff) Limited | Business Park Cardiff | 1957 |
| A. Rossetti Limited | Feltham | 1972 |
| A. Rowlands and Sons (Broughton) Limited | Near Wrexham | 1947 |
| A. S. Bains Property Limited | Halesowen | 2021 |
| A. S. Direct Marketing and Sales Ltd | Romford | 2005 |
| A. S. K. Developments Limited | Wolverhampton | 1962 |
| A. SAL. Limited | Bedford | 2003 |
| A. Shemetras & Sons Limited | Devon | 2006 |
| A. Springall Limited | Kent | 1957 |
| A. Stanaway Limited | Wallasey | 1972 |
| A. Stockall and SON Limited | Bath & Ne Somerset | 1940 |
| A. T and SON Limited | London | 2022 |
| A. T. Property Lettings Limited | Bridgend | 2021 |
| A. T. Warner & Sons Limited | Upton-Upon-Severn | 2001 |
| A. Tarr Limited | Christchurch | 1958 |
| A. Taylor Ltd | Lancashire | 2003 |
| A. Thompson (Properties) Limited | Bewdley | 1937 |
| A. Tomkinson & Sons Limited | Macclesfield | 1986 |
| A. Tucker & SON Investments Ltd | Barnsley | 2024 |
| A. Tucker & SON Properties Ltd | Barnsley | 2023 |
| A. V. Specialised Properties Limited | Edgware | 2004 |
| A. Visha Holdings Ltd | Hounslow | 2025 |
| A. W. Gore & Co. Limited | Hastings | 2010 |
| A. Weatherhead Holdings Ltd | Aylesbury | 1995 |
| A. Webb Properties Ltd | Bexhill-On-Sea | 2025 |
| A. Wylie Limited | Royston | 1945 |
| A. Zavos Properties Ltd | Southgate | 2021 |
| A.& B.Hanson Limited | Godalming | 1915 |
| A.& D.Alexandrou Limited | Romford | 1964 |
| A.& E.Marshall.Limited | Cockermouth | 1947 |
| A.& F.Harris Limited | Middlewich | 1959 |
| A.& J.Webster Limited | Liverpool | 1960 |
| A.& K. Gorham Limited | Newcastle Upon Tyne | 2014 |
| A.& R. Smith (Transmissions) Ltd | Wolverhampton | 1987 |
| A.& R.Clements(Investments)Limited | Radlett | 1962 |
| A.& T.Sharpe Properties Ltd | Carnforth | 2019 |
| A.& V.Properties Limited | Leicester | 1962 |
| A.1 Properties Sales & Lettings Ltd | Birmingham | 2010 |
| A.A & Sons Properties Ltd | London | 2001 |
| A.A & Sons Property Ltd | Dudley | 2024 |
| A.A Bains Property Ltd | Wallingford | 2025 |
| A.A Holdings London Ltd | London | 2024 |
| A.A Investment Enterprises Ltd | Newcastle Upon Tyne | 2020 |
| A.A. Bramall (Leeds) Limited | Burton-On-Trent | 1957 |
| A.A. Fisher (Investments) Limited | Watford | 2015 |
| A.A. Legacy Property Sourcing Ltd | London | 2025 |
| A.A. Letting Ltd | Gateshead | 2003 |
| A.A. Lettings Ltd. | Edgware | 1993 |
| A.A. Massen Limited | King'S Lynn | 1975 |
| A.A. Properties Birmingham Limited | Birmingham | 2025 |
| A.A. Property Services UK Limited | London | 2000 |
| A.A. Solanki Properties Ltd | Manchester | 2021 |
| A.A.F.N Ltd | Doncaster | 2025 |
| A.A.Fisher(Properties)Limited | Wiggenhall Road Watford | 1962 |
| A.A.H. Property Solutions (NW) Ltd | Rochdale | 2025 |
| A.A.K (Marlow) Limited | Pinner | 2025 |
| A.A.K. Enterprises Limited | London | 1980 |
| A.A.L.A Properties Ltd | Washington | 2025 |
| A.A.M Invests Ltd | London | 2017 |
| A.A.M Property Limited | London | 2015 |
| A.A.Malik Ltd | Glasgow | 2024 |
| A.A.R & K Properties Ltd | Warrington | 2024 |
| A.A.S Properties Limited | London | 2003 |