| Caledonia Residential Ltd | Hamilton | 2018 |
| Caledonian Court (Bournemouth) Limited | Bournemouth | 1994 |
| Caledonian Court Management Limited | London | 1986 |
| Caledonian Holdings London Limited | London | 2019 |
| Caledonian House & Mews Management Company Limited | King'S Lynn | 2009 |
| Caledonian House RTM Company Limited | Maidstone | 2025 |
| Caledonian Management Limited | London | 2019 |
| Caledonian Offord Management Limited | Letchworth | 2019 |
| Caledonian Property Ltd | Broxburn | 2018 |
| Caledonian Residents Management Limited | London | 1987 |
| Caledonian Road Estate Management Company Limited | New Barnet | 2002 |
| Caledonian Road NO 548 Limited | | 2005 |
| Caledonian Wharf Apartments Management Company Limited | London | 1985 |
| Caledonian Wharf Lake Management Company Limited | London | 1985 |
| Calendula Services Limited | Bournemouth | 2017 |
| Cales Reach (Wincanton) Management Company Limited | Shrewsbury | 2019 |
| Calex Property Management Ltd | Bristol | 2022 |
| Caley House Management Company Limited | Sudbury | 2019 |
| Calibrate Residents Association Limited | Eastbourne | 1992 |
| Calibration & Testers UK (Northern) Ltd | Blaydon-On-Tyne | 2016 |
| Calico Business Park Management Company Limited | Tamworth | 2008 |
| Calico House 199 Ltd | London | 2022 |
| Calico Properties Ltd | Crowborough | 2023 |
| California Close (Highwoods) Management Company Limited | Colchester | 1985 |
| California Court (Belmont) Freehold Limited | Bromley | 2001 |
| California Road Management Company Limited | New Milton | 2013 |
| Call Property Services Ltd | Rainham | 2023 |
| Call-On Properties Ltd | Faringdon | 2023 |
| Callaly Castle Gardens Limited | Alnwick | 1987 |
| Callaly Castle Museum Wing Management Company Limited | Alnwick | 1989 |
| Callan CT (SO43) RTM Company Limited | Ticehurst | 2026 |
| Callaura Management Company Limited | Lymington | 2012 |
| Callaway Gardens (Facilities Management) Limited | Salisbury | 2020 |
| Callencroft Court Management Limited | Croydon | 1972 |
| Callender Bentley Living Limited | Leamington Spa | 2025 |
| Callender Cable Freehold Company Ltd | Frodsham | 2019 |
| Callender Cable RTM Company Limited | Frodsham | 2019 |
| Callender Court Limited | Bury | 2004 |
| Callenick House Management Ltd | St. Austell | 2026 |
| Callfield Limited | Bromley | 1994 |
| Callh Ltd | Birmingham | 2025 |
| Callingham Place Management Company Limited | Beaconsfield | 2004 |
| Callisons Place Residents Company Limited | Gravesend | 2006 |
| Callow Field Residents Assoc. Limited | Purley | 1981 |
| Callset Limited | London | 1988 |
| Callum Limited | Croydon | 1995 |
| Callum Park Management Company Limited | Slough | 2024 |
| Callum-Westwood Ltd | Derby | 2025 |
| Calluna Chase Management Limited | Camberley | 2004 |
| Calluna Management Company Limited | Leatherhead | 1980 |
| Calluna Mews Management Company Limited | Greater Manchester | 1994 |
| Callvendale House Management Co Limited | Sandown | 1987 |
| Calm Cocoon Ltd | London | 2024 |
| Calm Investments Cornwall Limited | Helston | 2010 |
| Calm Wave Property Services Ltd | Newton-Le-Willows | 2025 |
| Calmarren Property Enterprise Ltd | Kilmarnock | 2022 |
| Calmclean Limited | | 1986 |
| Calme Living Ltd | Battle | 2026 |
| Calme Management Company Ltd | Ferndown | 2025 |
| Calmore Court (NI) Management Company Limited | Limavady | 2026 |
| Calne (Alexandra Gate) Management Company Limited | Camberley | 2024 |
| Calon Properties Ltd | Tredegar | 2023 |
| Calshot Close Residents Company Limited | Peterborough | 1999 |
| Calson Property Limited | Oldham | 2024 |
| Calt Properties Limited | Bristol | 2025 |
| Calthorpe Green Management Association Limited | Norwich | 1992 |
| Calthorpe House Limited | Saxmundham | 1994 |
| Calthorpe Mansions Freehold Limited | Birmingham | 1996 |
| Calthorpe Mansions Management Company Limited | Birmingham | 1989 |
| Caltil Limited | Croydon | 2025 |
| Calumet Residents Limited | Great Missenden | 1985 |
| Calvary Close Management Company Limited | Cannock | 2018 |
| Calvary Properties Ltd | Hyde | 2020 |
| Calver Mill Management Company Limited | Droitwich | 2000 |
| Calverhay Management Limited | Stoke-On-Trent | 2011 |
| Calverley Court RTM Company Limited | Hastings | 2018 |
| Calverley Green Barns Management Company Limited | Tarporley | 2020 |
| Calverley Heights Limited | Tunbridge Wells | 2007 |
| Calverley Park Mews Limited | Tunbridge Wells | 2022 |
| Calverstone Park (Rugby) Management Company Limited | Hoddesdon | 2005 |
| Calverstown Court Management Limited | Sutton | 1977 |
| Calvert Close Management Company Ltd | Bedford | 2017 |
| Calvert Court Limited | Preston | 1998 |
| Calvert Gardens Limited | Godalming | 2013 |
| Calvert Towers Limited | Brighton | 1995 |
| Calverton Estates Limited | Nottingham | 2025 |
| CAM Centre Management Limited | Stevenage | 1988 |
| CAM Cottages Management Company Limited | Gillingham | 2006 |
| CAM Locks (Management Company) Limited | Harlow | 2009 |
| CAM Squad Ltd | Hounslow | 2018 |
| Cama Building Solutions Ltd | London | 2020 |
| Camatimi Limited | Fordingbridge | 2004 |
| Cambalt Road RTM Company Ltd | Bicester | 2019 |
| Cambard Limited | London | 1988 |
| Cambard RTM Company Limited | London | 2005 |
| Camber Holdings Ltd | Marlow | 2016 |
| Camberley Avenue Management Limited | London | 2016 |
| Camberley Court RTM Company Limited | Bexhill-On-Sea | 2021 |
| Camberley RTM Company Limited | West Bromwich | 2006 |
| Camberley Towers(Management)Limited | Croydon | 1966 |