| CVR Properties Limited | London | 2016 |
| CW Bilston Management Company Ltd | Nottingham | 2016 |
| CW Living Ltd | Swindon | 2026 |
| CW Mews Ltd | London | 2018 |
| CW Property Consulting Ltd | Inverness | 2022 |
| CW Property Maintenance Ltd | Colchester | 2025 |
| CW10 Property Limited | Liverpool | 2019 |
| Cwks Management Ltd | London | 2026 |
| CWL Management Company Limited | Shoreham-By-Sea | 2020 |
| CWM Calon Management Company One Limited | Shrewsbury | 2005 |
| CWM Gelli (Blackwood) Residents Management Company Ltd | High Wycombe | 2022 |
| CWM Maddoc Barns Ltd | Hereford | 2007 |
| Cwmdulais Cwrt Maintenance Ltd | Pontardawe | 2025 |
| Cwmni AHC Limited | Hengoed | 2017 |
| Cwmni Jones Limited | Bridgend | 2023 |
| Cwmni Rheoli Bro’R Awen CYF. | Gwynedd | 2017 |
| Cwmni Rheoli Pentref Marina Conwy Cyfyngedig | Cardiff | 1992 |
| Cwmwdig Management Company Limited | Haverfordwest | 2008 |
| CWNX2 Investments Limited | London | 2020 |
| Cwrt Beaufort RTM Company Limited | Swansea | 2011 |
| Cwrt Bryn Derwen Management Limited | Usk | 2003 |
| Cwrt Capel (Rhos on Sea) Management Company Limited | Conwy | 2008 |
| Cwrt Cefn Management Company Limited | Cardiff | 1973 |
| Cwrt Cefn Road Company Limited | Cardiff | 2023 |
| Cwrt Deganwy Freehold Limited | Conwy | 2012 |
| Cwrt Dewi Sant Cardiff Management Company Limited | Cardiff | 2002 |
| Cwrt Gelynog Management Company Limited | Beddau | 1999 |
| Cwrt Glas Limited | Cardiff | 2025 |
| Cwrt Griffin Management Company Ltd | Caerphilly | 2004 |
| Cwrt Jubilee RTM Company Limited | Penarth | 2025 |
| Cwrt Maes-Y-Llyn (Newport) Management Company Limited | Clevedon | 2007 |
| Cwrt Pegasus RTM Company Limited | Milton Keynes | 2025 |
| Cwrt Penhill (Management) Limited | Cardiff | 2015 |
| Cwrt Soffia Owners Limited | Cardiff | 2021 |
| Cwrt Tredomen Management Limited | Pontypool | 2003 |
| Cwrt Y Llan (Management Company) Limited | Llandaff | 2023 |
| Cwrt Y Llwyfen (Johnstown) Management Company Limited | York | 2015 |
| Cwrt YR Eglwys Management Company Limited | Dinas Powys | 2018 |
| Cwrt-Ty-Mynydd Management Company Limited | Bridgend | 1982 |
| Cwrt-Yr-Ysgol Management Company Limited | New Milton | 2010 |
| CX Plumbing & Heating Ltd | Shoreham-By-Sea | 2026 |
| CYB Property Management Limited | Dolgellau | 2021 |
| Cyclocate Ltd | London | 2025 |
| Cyclomoor Limited | | 1985 |
| Cyclops Wharf Residents Company Limited | London | 1987 |
| Cycnestates Ltd | London | 2020 |
| Cyfarthfa Court Management Company Limited | Merthyr Tydfil | 2005 |
| Cyffin Barn Management Company Limited | Haverfordwest | 2015 |
| CYG RTM Company Ltd | Barmouth | 2018 |
| Cygne Limited | Stanmore | 2018 |
| Cygnet Court (Exeter) Company Limited | Exeter | 2009 |
| Cygnet Court (Harrogate) Limited | Harrogate | 2012 |
| Cygnet Court (Wombourne) Management Limited | Shrewsbury | 2005 |
| Cygnet Court Residents Association Limited | Fleet | 1993 |
| Cygnet Grange (Swanmore) Residents Management Company Limited | York | 2023 |
| Cygnet Grove Management Company Limited | Croydon | 2009 |
| Cygnet House (Maidenhead) Residents Management Company Limited | Reading | 2004 |
| Cygnet House Residents Limited | Pinner | 1975 |
| Cygnet Lakeside Doncaster Management Company Limited | Hoddesdon | 2021 |
| Cygnet Manor Management Limited | Grimsby | 2026 |
| Cygnet Mews (Phase 2) Management Company Limited | Northampton | 2014 |
| Cygnet Property Services Limited | Burton On Trent | 2016 |
| Cygnet Rise Residents Management Company Limited | Thetford | 2024 |
| Cygnet View (Swanland) Management Company Limited | Addlestone | 2024 |
| Cygnets Rest (Drakes Broughton) Management Company Limited | Swadlincote | 2025 |
| Cymbaster Limited | Downham Market | 1987 |
| Cymbeline Court Management Company Limited | Bedford | 1995 |
| Cymdeithas Trigolion Stryd Y Castell Cyfyngedig | Bow Street | 1986 |
| Cymdeithas Trigolion Teras Y Glogwyn Cyfyngedig | Aberystwyth | 1987 |
| Cyna Court (Freehold) Limited | Ilford | 2000 |
| Cyncoed Gardens (Cardiff) Management Company Limited | Cardiff | 2004 |
| Cynefin Management Company Limited | Manchester | 2023 |
| Cynosure Estates Ltd | Broadstone | 2020 |
| Cynosure Properties Limited | Belfast | 2026 |
| Cynthia Ambleside Estates Limited | London | 2024 |
| Cyntra Place Freehold Ltd | London | 2016 |
| CYP Plumbing & Electric Ltd | Enfield | 2026 |
| Cypress Court (2 Waterloo Street) Management Limited | Cheltenham | 1989 |
| Cypress Court (Beckenham) Management Company Limited | London | 1986 |
| Cypress Court Residents Association Limited | Kent | 1992 |
| Cypress Gardens Management Company (Hereford) Ltd | Hereford | 2022 |
| Cypress Gardens Residents Association Limited | Sutton Coldfield | 2002 |
| Cypress Grove (Chandlers Ford) Residents Limited | Eastleigh | 2005 |
| Cypress Grove Management Company Ltd | Cranleigh | 2023 |
| Cypress House Residents Association Limited | Bromsgrove | 2025 |
| Cypress House Residents RTM Company Limited | Bromsgrove | 2026 |
| Cypress Lodge Management Company Limited | Croydon | 1981 |
| Cypress Place Ltd | Hove | 2020 |
| Cypress Point Management Company Limited | Lytham St Annes | 1998 |
| Cypress Villa Management Company Limited | Liss | 2021 |
| Cypress Way (Aldwick) Limited | Bognor Regis | 2013 |
| Cyprus Court Management Company Limited | Nottingham | 1999 |
| Cyprus Gardens Management Company Limited | New Milton | 2009 |
| Cyprus Lodge Limited | Nottingham | 2001 |
| Cyprus Road (Block a) Management Company Limited | New Barnet | 1992 |
| Cyprus Road (Block B) Management Company Limited | New Barnet | 1992 |
| Cyprus Road (Block C) Management Company Limited | New Barnet | 1992 |
| Cyprus Road (Block D) Management Company Limited | New Barnet | 1992 |
| Cyprus Road (Block E) Management Company Limited | New Barnet | 1992 |
| Cyprus Road (Block G) Management Company Limited | New Barnet | 1993 |