| Acacias Lodge Residents Company Limited | Hatfield | 1993 |
| Academy (Woolwich) Residents Company Limited(The) | Gravesend | 1986 |
| Academy Apartments (2007) Limited | Belfast | 2007 |
| Academy Central (Brunel) RTM Company Ltd | London | 2015 |
| Academy Central (Canterbury) RTM Company Ltd | London | 2016 |
| Academy Central (Keele) RTM Company Ltd | Southend On Sea | 2015 |
| Academy Central (Lancaster) RTM Company Ltd | London | 2016 |
| Academy Central (Loughborough) RTM Company Ltd | London | 2015 |
| Academy Central (Pembroke) RTM Company Ltd | London | 2016 |
| Academy Central (Roehampton) RTM Company Ltd | London | 2016 |
| Academy Central (Trinity) RTM Company Ltd | Southend-On-Sea | 2016 |
| Academy Close Management Company Limited | Thetford | 2022 |
| Academy House & Cottages Management Company Ltd | Leatherhead | 2012 |
| Academy Management Company Limited | Epsom | 1982 |
| Academy Mews Management Company Ltd | Sandhurst | 2023 |
| Academy Place RTM Company Limited | Romford | 2019 |
| Academy Property Management Limited | Oldham | 2025 |
| Academy Square RTM Company Limited | Beaumont | 2021 |
| Academy Way Management Company Limited | Louth | 2024 |
| Acasta Court Limited | Hayling Island | 2003 |
| Acaster Lake Management Limited | York | 1992 |
| Acaster Lane Management Company Limited | York | 1991 |
| Acba Properties Ltd | St Austell | 2022 |
| ACC Invest Ltd | Sheffield | 2022 |
| Accadia Management Co. Limited | Kingsbury London | 1996 |
| Accent Cleaning Ltd | Manchester | 2020 |
| Acceptance Homes Ltd | Bournemouth | 2025 |
| Access Property Four Limited | Crawley | 2022 |
| Access Property One Ltd | Crawley | 2018 |
| Access Property Three Ltd | Crawley | 2021 |
| Access Property Two Ltd | Crawley | 2018 |
| Accessible Properties Ltd | Wisbech | 2025 |
| Accordia Street Garden Limited | Cambridge | 2004 |
| Accrarise Limited | | 1987 |
| Accredited Heating Services Ltd | Colchester | 2008 |
| Accurate Cleaning Services Limited | Waltham Cross | 2019 |
| Accurate Property Services NW Ltd | Blackpool | 2018 |
| Accurite Ltd | Mildenhall | 2025 |
| Ace Avenue Limited | London | 2024 |
| Ace Blitz Clean Services Limited | Croydon | 2022 |
| Ace Court Management Limited | Basildon | 2024 |
| Ace Halo Property Limited | Knottingley | 2024 |
| Ace High Residents Management Limited | Maidstone | 2017 |
| Ace House Ltd | Worthing | 2007 |
| Ace INT Ltd | Brockley | 2023 |
| Ace Invesments Ltd | Coventry | 2026 |
| Ace LET Luton Ltd | Luton | 2017 |
| Ace Rental Homes Ltd | Harrow | 2024 |
| Ace Services (South West) Limited | Bridgwater | 2003 |
| Ace Trader Ltd | London | 2022 |
| Acegloss Limited | Cranleigh | 1976 |
| Acemodern Limited | London | 1986 |
| Acer Close (Cheltenham) Management Company Limited | Cirencester | 2018 |
| Acer Close (Frogmore) Management Company Limited | Colchester | 2024 |
| Acer Close Management Company Limited | Croydon | 2014 |
| Acer Property Limited | Maidstone | 2004 |
| Acer Property Management Norfolk Ltd | Norwich | 2025 |
| Acevale Management Company Limited | East Sussex | 1988 |
| ACF Cleaning Services UK Ltd. | West Wickham | 2015 |
| Acfa Ltd | Poole | 2016 |
| ACG Care Services Ltd | Bradford | 2017 |
| ACG Property Lettings & Management Ltd | Derby | 2021 |
| ACH Owners Limited | Bournemouth | 2018 |
| Acheson Estate Ltd | Belfast | 2025 |
| Achi Property Portfolio Ltd | London | 2024 |
| ACJ Living Limited | London | 2022 |
| Acjs Management Company Limited | Morecambe | 2016 |
| Ackender Hill (Alton) Management Company Limited | Reading | 2019 |
| Ackersbarn Courtyard Limited | Manchester | 2013 |
| Ackersley Court Limited | Cheadle | 1967 |
| Acklam Court Beverley RTM Company Limited | Beverley | 2015 |
| Acklam Green Management Limited | Newcastle Upon Tyne | 2012 |
| Ackland Close Estate Management Company Limited | New Milton | 2016 |
| Ackland Close Flats Management Company Limited | New Milton | 2016 |
| Ackleton Meadows Management Company Limited | Dudley | 2024 |
| Ackrill Close Management Company Limited | Boston | 2010 |
| Ackroyd Legal Group Limited | London | 2024 |
| Ackworth House Management Company Limited | Filey | 2019 |
| Ackworth Park Farm Management Company Limited | Leeds | 2016 |
| ACL Block Management Limited | Cambridge | 2021 |
| Acland Court (Braunton) Limited | Braunton | 1997 |
| Acland Hall Management Limited | Settle | 1989 |
| Acland House Management Company Limited | Colchester | 2018 |
| Acland Park Management Co. Limited | Dorchester | 2016 |
| Acle Oaks Management Company Limited | Norwich | 2021 |
| ACM Freehold Limited | Greenford | 2010 |
| ACM South East Ltd | Maidstone | 2012 |
| Acmb Management Limited | Cheltenham | 2026 |
| Acme Integrated Services Limited | Manchester | 2024 |
| Acocks Property Management Limited | Dudley | 1993 |
| Acol 9 Limited | London | 2002 |
| Acol Court Limited | Redditch | 1983 |
| Acomb Avenue (Seaton Delaval) Management Company Limited | Gateshead | 1997 |
| Acomb Road Property Management Company Limited | Manchester | 2013 |
| Acon Property Ltd | St. Helens | 2020 |
| Acorn & Co. Property Services Ltd | Ely | 2025 |
| Acorn (Rowstock) Management Company Limited | Wantage | 2010 |
| Acorn Close (Healing) Management Company Limited | Grimsby | 2017 |
| Acorn Close Management Company Limited | Croydon | 2011 |
| Acorn Court (Newbury) Management Company Limited | Newbury | 2012 |