| Clippers Quay (Salford) Management Company Limited | Manchester | 2008 |
| Clippers Quay (South Ferry Island) Management Company Limited | Liverpool | 1999 |
| Clippers Reach (Grays) Management Company Limited | Hoddesdon | 2001 |
| Clipston Residents Company Limited | Epsom | 2013 |
| Clipstone Brook Management Company Limited | Bedford | 2003 |
| Clipstone Park (Leighton Buzzard) Management Company Limited | New Milton | 2018 |
| Clissold Crescent Management Company Limited | London | 2025 |
| Cliston View Management Ltd | Crediton | 2021 |
| Clitheroe Street Works Management Company Ltd | Skipton | 2020 |
| Clive Capital Ltd | Northampton | 2019 |
| Clive Court (Maida Vale) Freehold Limited | London | 2018 |
| Clive Court Freehold Limited | Bournemouth | 2003 |
| Clive Court Management Company Limited | Stratford-Upon-Avon | 1988 |
| Clive Court Property Limited | Polegate | 1995 |
| Clive Court RTM Company Limited | Luton | 2005 |
| Clive Court Streatham Freehold Company Limited | London | 2013 |
| Clive Lodge Management Limited | Barnet | 1972 |
| Clive Park Management Limited | Market Drayton | 2007 |
| Clive Place Residents Association Limited | Thames Ditton | 1986 |
| Clive Road Freehold Management Ltd | London | 2025 |
| Clive Road Properties Ltd | Cardiff | 2025 |
| Clive Seal & Sons Limited | Penrith | 2017 |
| Clive Street Management Limited | Cardiff | 2003 |
| Clivedale Residents Association Limited | Steyning | 1978 |
| Cliveden Court Management Company Limited | Harrow | 2009 |
| Cliveden Freehold Limited | London | 2025 |
| Cliveden Gate Management Company Limited | Slough | 2003 |
| Cliveden Management Limited | Canterbury | 1992 |
| Cliveden Place Management Company (Broadstairs) Limited | Ramsgate | 2002 |
| Cliveden Village Management Company Limited | Windsor | 2006 |
| Clivedon Court Residents Company Limited | London | 1999 |
| Clivesdale Management Company Limited | Middlesex | 1986 |
| Clivewin Ltd | Cardiff | 2023 |
| Cllb Management RTM Company Limited | London | 2009 |
| CLM Property Management Ltd | Rotherham | 2024 |
| Cloakham Lawns (Axminster) Management Company Limited | Southend On Sea | 2014 |
| Cloc Ballaun Management Limited | Gilford | 2010 |
| Clock House Beckenham Management Company Limited | London | 2007 |
| Clock House Gardens Management Limited | Woodford Green | 2014 |
| Clock House LAM Management Company Limited | Guildford | 2024 |
| Clock House Mead Residents Management Company Limited | Cobham | 2020 |
| Clock Houses Management Company Ltd | Berwick Upon Tweed | 2018 |
| Clock Tower (Wolverhampton) Management Company Limited | Hoddesdon | 2020 |
| Clock Tower Court (Bexhill) RTM Company Limited | Bexhill-On-Sea | 2011 |
| Clock Tower House (Folkestone) Management Company Limited | Folkestone | 2020 |
| Clock Tower Management Company (1993) Limited | Summerbridge | 1993 |
| Clock Tower Mews Residents Association Limited | London | 1982 |
| Clock Tower View Management Company Limited | Oldham | 2018 |
| Clock Walk (Flats) Management Limited | Shrewsbury | 1988 |
| Clockfield (Turners Hill) Management Company Limited | Dorking | 2018 |
| Clockhill Management Company Limited | Belfast | 2009 |
| Clockhill Properties Ltd | Swansea | 2021 |
| Clockhouse 220 Management Company Ltd | Waterlooville | 2014 |
| Clockhouse Cotford Management Limited | Taunton | 2015 |
| Clockhouse Court Residents Association Limited | Eastbourne | 1970 |
| Clockhouse Green Challock Management Company Limited | Chatham | 2026 |
| Clockhouse Green Management Company Limited | Sandwich | 2016 |
| Clockhouse Investment Limited | Enfield | 1995 |
| Clockhouse Management Group Limited | London | 2022 |
| Clockhouse Mews Management Company Ltd | Chorleywood | 2001 |
| Clockhouse Road Management Ltd | Chelmsford | 2011 |
| Clockpelter Mews Management Company Limited | Sleaford | 1989 |
| Clockwork House Limited | Stockport | 2017 |
| Cloghan Gardens Management Company Limited | Belfast | 2003 |
| Cloister Court Management Ltd | Walton-On-Thames | 2015 |
| Cloister Gardens Management Company Limited | New Milton | 2011 |
| Cloisters (Canterbury) Residents Association Limited(The) | Canterbury | 1976 |
| Cloisters (Crouchfields) Management Co. Limited(The) | Barnet | 1985 |
| Cloisters (Leamington) Limited (the) | Solihull | 1971 |
| Cloisters (Lymington) Maintenance Limited | New Milton | 1977 |
| Cloisters (Ramsgate) Residents Company Limited(The) | Ramsgate | 1982 |
| Cloisters Close (York) Management Company Limited | York | 1984 |
| Cloisters Court (Rainham) RTM Company Limited | Colchester | 2020 |
| Cloisters Court Residents Association Limited | Manchester | 2002 |
| Cloisters Court RTM Company Ltd | Birmingham | 2018 |
| Cloisters Management (Oakham) Ltd | Stamford | 2003 |
| Cloisters Priestland Road Management Limited - the | Coleraine | 2009 |
| Cloisters Property Management Company Limited (the) | Bristol | 1974 |
| Cloisters Reach (Residents) Management Limited | Gloucester | 1990 |
| Clonallon Square Management Company Limited | Newry | 2004 |
| Clondara Holdings Ltd | Belfast | 2022 |
| Cloneen Manor Ltd | Limavady | 2003 |
| Clonmore Manor Management Co Ltd | Newry | 2004 |
| Clonmount Limited | Leatherhead | 1993 |
| Cloona East (Eastbourne) Ltd | Eastbourne | 2025 |
| Cloonavin Green Management Limited | Coleraine | 2001 |
| Clophill Road Management Company Ltd | Silsoe | 2019 |
| Clopton Court Management Limited | Evesham | 1982 |
| Clopton Gate Management Company Limited | Birmingham | 2006 |
| Clopton Hall Estates Limited | Oundle | 2011 |
| Clopton House Limited | Evesham | 1995 |
| Clopton Mews Management Company Limited | Stratford-Upon-Avon | 2007 |
| Clopton Park Management Company Limited | Newmarket | 2003 |
| Clor Property Management Ltd | London | 2023 |
| Clos - YR - Ysgol Parks Management Company Ltd | Porthcawl | 2022 |
| Clos Brynyddol (Welshpool) Management Company Limited | Welshpool | 2017 |
| Clos CWM Peris Properties Limited | Carmarthen | 2022 |
| Clos Gwenllian Management Company Limited | Cardiff | 2023 |
| Clos Treoda Residents Association (Cardiff) Limited | Cardiff | 1982 |
| Clos TY Gwyn (Hendy) Management Company Limited | Salisbury | 2015 |