| Clos TY Mawr Management Limited | Chester | 2025 |
| Clos YR Odyn Limited | Carmarthen | 2022 |
| Close Community Management Limited | Gloucester | 1991 |
| Close Concierge Ltd | Woking | 2025 |
| Close END Drayton Management Limited | Abingdon | 2018 |
| Close House Management Limited | Wareham | 1997 |
| Close Property Management Company Limited - the | Craigavon | 2004 |
| Closehold Limited | London | 1987 |
| Closeplace Limited | Windsor | 2002 |
| Closes Hall Mews Management Company Limited | Clitheroe | 1998 |
| Closeunit Property Management Limited | Hove | 1989 |
| Clothall Corner Estate Management Limited | Letchworth Garden City | 2011 |
| Clothall Corner Flat Management Limited | Letchworth Garden City | 2011 |
| Cloud 22 Limited | London | 2004 |
| Cloud 9 Living Ltd | Stansted | 2019 |
| Cloud 9 Property Management Ltd | Hartlepool | 2026 |
| Cloud 9 Windows Limited | Wetherby | 2012 |
| Cloud Brockenhurst Management Company Ltd | Lymington | 2024 |
| Cloud Fourteen Properties Ltd | Kettering | 2019 |
| Cloud Hills Management Company Limited | Cullompton | 2010 |
| Cloud House Crafts Limited | Nottingham | 2025 |
| Cloud Inn Ltd | Bromley | 2022 |
| Cloud Key Ltd | London | 2025 |
| Cloud Lifestyles Management Limited | Titchfield | 2016 |
| Cloud Nine Group Limited | Truro | 2024 |
| Cloud Properties Solutions Ltd | Manchester | 2026 |
| Cloud Serviced Properties Ltd | Reading | 2024 |
| Cloudale Management Limited | Mansfield | 1987 |
| Cloudbraid Limited | | 1984 |
| Cloudesley Arms Limited | Amersham | 2000 |
| Cloudie Property Ltd | Doncaster | 2025 |
| Cloudnic Ltd | London | 2026 |
| Clouds Hill Road Limited | Bristol | 2022 |
| Cloudsleigh Lodge RTM Company Limited | Plymouth | 2007 |
| Cloudtask Limited | | 1992 |
| Clough Fields Management Limited | Hyde | 1990 |
| Clough Mill Management Company Limited | Stockport | 1988 |
| Clough Springs Management Company Limited | Altrincham | 2003 |
| Cloughan Management Company Ltd | Limavady | 2023 |
| Cloughan View Management Company Ltd | Limavady | 2025 |
| Clova Court RTM Company Limited | London | 2021 |
| Clova Gardens Management Company (Ripon) Limited | Ripon | 1995 |
| Cloval Limited | Laddingford | 1983 |
| Cloveholly Property Management Limited | Hampstead | 2007 |
| Clovelly Apartments (Ilfracombe) Limited | Ilfracombe | 1984 |
| Clovelly Bay Management Limited | Plymouth | 1997 |
| Clovelly Court (West Drayton) Management Company Limited | Hoddesdon | 2014 |
| Clovelly Downs Management Company Limited | Leatherhead | 2000 |
| Clovelly Green Residents Company Limited | Linslade Leighton Buzzard | 1972 |
| Clovelly Management Company Limited | Altrincham | 1984 |
| Clovencrest Limited | London | 1986 |
| Clover Bank (Birmingham New Road) Management Company Limited | Newcastle Upon Tyne | 2009 |
| Clover Brook Management Ltd | Ballyclare | 2016 |
| Clover Chase (Lingwood) Residents Management Company Limited | York | 2014 |
| Clover Cottage (Management) Limited | Eastbourne | 2002 |
| Clover Court (Bristol) Management Company Ltd | Southend On Sea | 2010 |
| Clover Court Freehold Limited | London | 2005 |
| Clover Court Residents Association Limited | East Cowes | 1991 |
| Clover Court Southport RTM Company Limited | Southport | 2022 |
| Clover Drive Management Limited | Poole | 2004 |
| Clover Field Management Limited | London | 1998 |
| Clover House (Cranbrook) Management Company Limited | Salisbury | 2022 |
| Clover Investments Limited | London | 1983 |
| Clover Kinna Property Management Ltd | Lyndhurst | 2023 |
| Clover Lane Management Company Limited | Coleraine | 2022 |
| Clover Mansions Management Company Limited | Milton Keynes | 2004 |
| Clover Pastures Management Company Limited | New Milton | 2020 |
| Clover Rise Management Company Limited | Chorley | 2021 |
| Clover RTM Company Ltd | Epsom | 2008 |
| Cloverdale Management Co Ltd | Newry | 2003 |
| Cloverdale Property Management Limited | Bedlington | 2026 |
| Cloverfield Number 1 Residents Association Limited | Norwich | 1990 |
| Cloverfield Number 2 Residents Association Limited | Huntingdon | 1991 |
| Cloverfields (Carlisle) Management Company Limited | Carlisle | 2014 |
| Cloverfields (Horley) Management Company Limited | Mirfield | 1997 |
| Cloverkey Properties Ltd | Keighley | 2025 |
| Cloverlea Gardens (Kingswood) Management Company Limited | York | 2025 |
| Cloverleaf Court Management Company Limited | Sheffield | 2021 |
| Cloverleaf House Management Company Limited | London | 2012 |
| Cloverleaf Management Company Limited | Bedford | 2000 |
| Cloverley (Sale) Limited | Altrincham | 1982 |
| Cloverley House Management Company Limited | Altrincham | 1985 |
| Clovis Management Company Limited | Paignton | 1991 |
| Clows Top Management Company Limited | Worcs | 1986 |
| CLP Management Co. Limited | Wetherby | 2017 |
| CLR Estates Ltd | Surrey | 2020 |
| Clrbc Properties Limited | Nottingham | 2023 |
| CLS Property Management Limited | Stockton-On-Tees | 2021 |
| Cluain Air Management Co. Limited | Newry | 2002 |
| Club House Residents Association Limited | Basildon | 2008 |
| Club of Jacks Ltd | Neath | 2025 |
| Clubhouse Craven Road Management Ltd | London | 2026 |
| Clubhouse Management Limited | Teddington | 1989 |
| Clubrange Limited | London | 1985 |
| Clue Circle Investments Limited | Harrogate | 2025 |
| Clumber Court (Warsop) Management Company Limited | Mansfield | 2021 |
| Clumber House (Lincoln) Management Company Limited | Lincoln | 2014 |
| Clumber House Management Company Limited | Nottingham | 1995 |
| Clumber West London Limited | | 1992 |
| Clump Industrial Estate Management Limited | Christchurch | 1990 |