| Arle Road Cheltenham Leasehold Management Company Limited | Bourne End | 2005 |
| Arlebury Park Farm Barns Management Company Limited | Alresford | 1994 |
| Arlebury Park House Estate Management Company Limited | Winchester | 1996 |
| Arlee Mews Limited | Belfast | 2000 |
| Arlesey Grange Management Company Limited | New Milton | 2020 |
| Arlesey House Maintenance Company Limited | Uxbridge | 1986 |
| Arlesey Residents Management Company Limited | Derby | 2025 |
| Arlesey Road (Stotfold) Residents Management Company Limited | Milton Keynes | 2019 |
| Arleston Manor Drive Limited | Telford | 2010 |
| Arleston Manor Management Limited | Telford | 2009 |
| Arlevale Limited | Leighton Buzzard | 1989 |
| Arley (Newton Leys) Management Company Limited | Leighton Buzzard | 2012 |
| Arley Gardens Management Company Limited | Loughborough | 2016 |
| Arlingdon Farm Management Company Limited | Cirencester | 2002 |
| Arlingham House RTM Company Limited | Wadhurst | 2025 |
| Arlington & Barrington (Trewolek) Management Company Limited | Exeter | 2021 |
| Arlington Apartments (Scarborough) Limited | Scarborough | 2008 |
| Arlington Avenue Freehold Limited | London | 2022 |
| Arlington Bailey Property Limited | Woolacombe | 2024 |
| Arlington Court Limited | Prenton | 1987 |
| Arlington Court Residents Association Limited | Kingston Upon Thames | 1990 |
| Arlington Flats Management Limited | Fareham | 1996 |
| Arlington Gardens Residents Company Limited | London | 1971 |
| Arlington House (22 Bourne AV.) Limited | Salisbury | 2002 |
| Arlington House (Twickenham) Residents Association Limited | Twickenham | 1991 |
| Arlington House Stall Street Management Company Limited | Bath | 2022 |
| Arlington International Properties Limited | London | 2023 |
| Arlington Lodge Management Limited | Newhaven | 2004 |
| Arlington Mews Management Company Limited | Brighton | 2000 |
| Arlington Park Mansions Limited | London | 1986 |
| Arlington Road Ealing Management Ltd | Ealing | 2018 |
| Arlington Seaton Ltd | Seaton | 2004 |
| Arlington Walk RTM Company Limited | Potters Bar | 2007 |
| Arliss Court RTM Company Limited | Southampton | 2022 |
| Arlly Ltd | Mold | 2025 |
| Arlo Property Services Ltd | Poole | 2022 |
| Arlo SA Limited | London | 2025 |
| Arlow House Hove Limited | Hove | 1999 |
| Armada Close (Ilfracombe) Management Company Limited | Barnstaple | 2019 |
| Armadale Freehold Limited | Birchington | 2019 |
| Armafield Limited | Birmingham | 1992 |
| Armaglen Limited | | 1992 |
| Armastone Limited | Cheltenham | 1983 |
| Armchair Invest Limited | London | 2019 |
| Armcheld Limited | London | 1994 |
| Armetriding Reaches Management Co Limited | Blackpool | 2018 |
| Armfield House Management Company Limited | Southampton | 2008 |
| Armin Deeg Ltd | Manchester | 2023 |
| Arminghall Fields Management Company Limited | Norwich | 2022 |
| Armitage Murray Limited | Ascot | 1980 |
| Armitage Way Freehold Limited | Cambridge | 2020 |
| Armley Ridge Road (Freehold) Ltd | Leeds | 2025 |
| Armour Court (Tilehurst) M.C. Limited | Cambridge | 1994 |
| Armour Housing Group CIC | Wolverhampton | 2024 |
| Armour Lodge Management Association RTM Company Limited | Reading | 2009 |
| Armour Lodge Management Company Limited | Reading | 2007 |
| Armour Road (M.C) Limited | Reading | 2019 |
| Armoury Court Ebbw Vale Limited | Bridgend | 1998 |
| Armoury Court Management Limited | Macclesfield | 1988 |
| Armoury Towers Management Limited | Stockport | 1990 |
| Armresidential Ltd | London | 2026 |
| Arms Farm Management Company Limited | Salisbury | 2020 |
| Armsby House Block Management Limited | Romford | 2025 |
| Armsgate (Melbourne) Management Company Limited | Derby | 2018 |
| Armstridge Residents Association Ltd | St. Albans | 2020 |
| Armstrong Close (Harwell) Limited | Oxford | 2021 |
| Armstrong Court (Swindon) Management Company Limited | Shrewsbury | 2002 |
| Armstrong Court Residents Company Limited | Darlington | 1987 |
| Armstrong Hall Mews Management Company Limited | Winsford | 2007 |
| Armstrong House (Farnborough) Residents Management Company Limited | Fleet | 2015 |
| Armstrong House RTM Company Limited | Southampton | 2018 |
| Armstrong Huntley Ltd | Edgware | 2022 |
| Armten Limited | Brighton | 1984 |
| Arna Wood Management Company Limited | Lancaster | 2004 |
| Arnada Property Ltd | Chester | 2022 |
| Arncliffe (Bowdon) Management Limited | 14 Greenwood Street Altrincham | 1999 |
| Arncliffe Court (Huddersfield) Maintenance Limited | Huddersfield | 1974 |
| Arncliffe Court (Maintenance) Limited | Leeds | 1967 |
| Arncliffe Grange (Moortown) Maintenance Limited | Leeds | 1974 |
| Arncliffe House (Maintenance) Limited | Leeds | 1984 |
| Arncliffe Mews (York) Maintenance Limited | York | 1974 |
| Arncliffe Residents' Association Limited | London | 1982 |
| Arncliffe Road PM Company Limited | Leeds | 2018 |
| Arndale Court Management Limited | Luton | 1994 |
| Arndale Residents Association Limited | Cheltenham | 1990 |
| Arnella Court Management Company Limited | Farnborough | 1988 |
| Arnewood Court (Bournemouth) Management Company Limited | Bournemouth | 1997 |
| Arnewood Court Management Company Limited | Lymington | 1997 |
| Arng Management Limited | London | 2018 |
| Arnhem Estates Ltd | Liverpool | 2023 |
| Arnison Management Company Limited | East Molesey | 2012 |
| Arnison Road Residents Association Limited | East Molesey | 1995 |
| Arno Court(Management)Co.Limited | Wallasey | 1962 |
| Arnold Court Management Limited | Stockport | 1981 |
| Arnold House Management Company Limited | Lowestoft | 1990 |
| Arnold Property Management Company Limited | Sale | 1997 |
| Arnold Property Sales Ltd | London | 2022 |
| Arnold Way (Grove) Management Company Limited | York | 2021 |
| Arnold Way NO. 2 (Grove) Management Company Limited | York | 2021 |
| Arnold Way NO. 3 (Grove) Management Company Limited | York | 2022 |