| Caerlyon House Limited | Bournemouth | 2011 |
| Caernafon House Residents Association Limited | Cambridge | 2007 |
| Caernarvon Lodge (Shanklin) Management Company Limited | Newport | 1995 |
| Caersegan Barns Management Company Limited | Goodwick | 2018 |
| Caerwent Close Management Company Limited | New Milton | 2018 |
| Caesar Court (Colchester) RTM Company Limited | Colchester | 2015 |
| Caesars Court (Towcester) Management Company Limited | Northampton | 2006 |
| Caesars Court Management Company Limited | Farnham | 1988 |
| Cafe Fields (Puckeridge) Management Company Limited | New Milton | 2020 |
| Cafe Mews Management Company Limited | Coleraine | 2007 |
| Caflin Limited | Driffield | 2016 |
| Cafu Services Limited | Nottingham | 2009 |
| Cage END (Hatfield Broad Oak) Management Limited | Bishops Stortford | 2026 |
| Cage END Management Limited | Old Harlow | 1986 |
| Cagny House RTM Company Limited | Bromley | 2023 |
| Caherty Hill Property Management Ltd | Coleraine | 2016 |
| Caherty Services Company Limited | Portstewart | 2010 |
| Cahill Estates Ltd | London | 2023 |
| Cahir Linn Management Company Limited | Belfast | 2002 |
| Cahore Meadows Management Company Ltd | Dromore | 2021 |
| Caia Gardens Management Limited | Wrexham | 2020 |
| Caine's Village Residents Association Limited | Millom | 1975 |
| Cainscross House Residents' Association Limited | Dursley | 2002 |
| Cairn Court Management Company Limited | Thornton | 1985 |
| Cairn Freehold Limited | London | 2023 |
| Cairn Grove Management Co Ltd | Newry | 2007 |
| Cairn House (Freehold) Limited | Leatherhead | 2006 |
| Cairnbrook Residents Company Limited | London | 1989 |
| Cairncastle Mews Management Company Limited | Belfast | 2006 |
| Cairncrest Limited | Ayr | 1999 |
| Cairney House RTM Company Limited | Newcastle Upon Tyne | 2004 |
| Cairngorm Management Consultancy Limited | Aviemore | 2022 |
| Cairnhill Management Co Ltd | Ballymena | 2021 |
| Cairns Chase and Cairns Park (Stainburn) Management Company Limited | Carlisle | 2014 |
| Cairns Court Company (Norwich) Limited(The) | Norwich | 1983 |
| Cairns Management Limited - the | | 1992 |
| Caistor Mews Limited | Grimsby | 2002 |
| Caistor Park Partners Ltd | London | 2020 |
| Caius Court Residents Association Limited | Norwich | 1998 |
| CAJ & Sons Ltd | Chester | 2023 |
| Cajetan House Management Limited | London | 1981 |
| Cakiroglu FIN Limited | Porthmadog | 2022 |
| Cala at Kingsmere Management Company Limited | New Milton | 2019 |
| Cala at Waterbeach Leasehold Management Company Limited | Lichfield | 2022 |
| Cala at Whitehouse (Phase Two) Management Company Limited | New Milton | 2019 |
| Cala at Whitehouse Management Company Limited | New Milton | 2018 |
| Cala Court Management Limited | Plymouth | 2018 |
| Calath Investments Ltd | Burntisland | 2024 |
| Calbri Court Limited | Leicester | 1988 |
| Calcon Property Services Limited | Bury St. Edmunds | 2024 |
| Calcos Place Management Company Limited | Shrewsbury | 2007 |
| Calcot Residents Association Limited | Gerrards Cross | 1987 |
| Calcot Barn (Apartments) Management Company Limited | Reading | 2017 |
| Calcot Barns Management Company Limited | Theale | 2017 |
| Calcot Park Management Company Limited | Reading | 1961 |
| Calcot Properties Limited | Hove | 2013 |
| Caldac Limited | Middlesbrough | 1979 |
| Caldbec Senlac Residents Co. Limited | Sussex | 1968 |
| Caldeal Limited | London | 1979 |
| Caldecote Management Company Limited | Croydon | 2024 |
| Caldecote Residents Management Limited | Nuneaton | 2004 |
| Caldecott Chase Management Company Limited | Witney | 2006 |
| Caldecott Manor (Rugby) Management Company Limited | New Milton | 2008 |
| Caldecotte Lakeside Management Limited | Bedford | 2025 |
| Calder Avenue Management Limited | Preston | 1990 |
| Calder Court (Freehold) Limited | Maidenhead | 2000 |
| Calder Court (Langley) Limited | Marlow | 1965 |
| Calder Fields Resident Management Company Limited | Castleford | 2026 |
| Calder Grange (Billington) Management Company Limited | Hoddesdon | 2022 |
| Calder Grange (Dewsbury) Management Company Limited | Southend-On-Sea | 2018 |
| Calder Heights (Netherton) Management Company Limited | Hoddesdon | 2006 |
| Calder Mews Management Company Limited | Leeds | 2022 |
| Calder Park (Bowgreave) Management Company Limited | Preston | 2019 |
| Calder Park Court (Leaseholds) Limited | Liverpool | 1971 |
| Calder Rise Residents Management Company Limited | Croydon | 2023 |
| Calder Street Management (Manchester) Limited | Manchester | 2012 |
| Calder Valley Management Company Limited | Wimborne | 2018 |
| Calder Valley View Management Limited | Elland | 2009 |
| Calder Valley Vista Limited | Sheffield | 2022 |
| Caldera Kitchens and Bedrooms Ltd | Bootle | 2013 |
| Calderbeck Ltd | Newport | 1999 |
| Calders Garden Management Company Limited | Dorset | 2001 |
| Calderstones Court (Liverpool) Management Company Limited | Crosby | 2014 |
| Calderstones Park Management Company Limited | Hoddesdon | 2001 |
| Caldersview Court (Management) Limited | Liverpool | 1972 |
| Caldew Place Freehold Limited | Croydon | 2019 |
| Caldewell Farm Barns Residents Limited | Worcester | 2003 |
| Caldicott Court Residents Management Company Limited | Hitchin | 2006 |
| Caldicotts Management Company Limited | Peacehaven | 2026 |
| Caldon Quay Residents Management Company Limited | Birmingham | 2013 |
| Caldwell House Management Company Limited | London | 1997 |
| Caldy Green Residents Association Limited | Maghull | 1980 |
| Cale Limited | London | 1999 |
| Caleb RTM Company Ltd | London | 2025 |
| Caledonia (Brierley Hill) Residents Management Limited | Stourbridge | 2025 |
| Caledonia Court (Barking) RTM Company Ltd | London | 2013 |
| Caledonia Court Ltd | London | 1998 |
| Caledonia Estates Management Ltd | Aberdeen | 2025 |
| Caledonia Midlands Limited | Halesowen | 2021 |
| Caledonia Property Maintenance Services Ltd | Glasgow | 2016 |