| 18 Brunswick Road Hove Limited | | 2004 |
| 18 Butler Avenue Management Ltd | Harrow | 2014 |
| 18 Cabanel Place Limited | Plymouth | 2018 |
| 18 Canterbury Road Management Company Limited | Bath | 2007 |
| 18 Cavendish Square Limited | London | 2016 |
| 18 Child Street Maintenance Association Limited | London | 1963 |
| 18 Chippendale Street Management Company Limited | London | 2016 |
| 18 Christchurch Hill Management Company Limited | London | 1992 |
| 18 Church Lane Limited | London | 2014 |
| 18 Cleveland Road Ltd | Kirkcudbright | 2026 |
| 18 Coolhurst Road Limited | | 1999 |
| 18 Copeland Road Limited | London | 2012 |
| 18 Cornwall Road Management Company Limited | Bedford | 2016 |
| 18 Cottage Limited | Croydon | 2021 |
| 18 Court Yard Management Ltd. | London | 2015 |
| 18 Cranwich Ltd | London | 2025 |
| 18 Cranwich Road Freehold Ltd | London | 2015 |
| 18 Crossfield Road (Belsize Park) Limited | London | 2004 |
| 18 DAF Ltd | Ilford | 2024 |
| 18 Dalebury Road Limited | St Albans | 2007 |
| 18 Donaldson Road Management Company Limited | London | 1994 |
| 18 Dufferin Street (Management) Limited | Radlett | 1997 |
| 18 Duppas Hill Road Management Limited | Croydon | 1995 |
| 18 Elgin Limited | Croydon | 2010 |
| 18 Elmcroft Road (Management) Limited | London | 1998 |
| 18 Elms Road Management Ltd | Bangor | 2020 |
| 18 Endymion Road Management Company Limited | London | 1996 |
| 18 Estates Group Ltd | Seaham | 2025 |
| 18 Estates Ltd | London | 2024 |
| 18 Fairfield Road (Beckenham) RTM Company Limited | Bromley | 2022 |
| 18 Ferndale Limited | London | 2013 |
| 18 Flashlight LDN Limited | London | 2019 |
| 18 Fontenoy Road Limited | | 2000 |
| 18 Fore ST Seaton (Management) Limited | Seaton | 2004 |
| 18 Fourth Avenue RTM Company Ltd | Hove | 2026 |
| 18 Frobisher Ltd | London | 2019 |
| 18 Gambole Road Management Company Limited | London | 2002 |
| 18 Gloucester Road RTM Company Limited | Bristol | 2010 |
| 18 Greenaway Gardens (Management) Limited | Rickmansworth | 1989 |
| 18 Gresham Limited | London | 2024 |
| 18 Greville Road (Management) Limited | London | 1981 |
| 18 Haddow Street Ltd | Montrose | 2023 |
| 18 Hanley Road Freehold Ltd | London | 2013 |
| 18 Hans Crescent (Freehold) Limited | Croydon | 2011 |
| 18 Hedge Lane Limited | Essex | 2017 |
| 18 Hemstal Road NW6 Ltd. | | 1994 |
| 18 High Street Gravesend Limited | Gravesend | 2011 |
| 18 Highgate High Street Limited | London | 2018 |
| 18 Hill Ltd | Middleton | 2024 |
| 18 Holders Hill Crescent Freehold Limited | Edgware | 2012 |
| 18 Holland Road Ltd | Middlesex | 2018 |
| 18 Hope Drive Nottingham Limited | Nottingham | 1990 |
| 18 Horsefair Management Limited | Chipping Norton | 2015 |
| 18 John Street RTM Company Limited | Washington | 2021 |
| 18 Kempsford Partners Ltd | | 2007 |
| 18 Kensington Court Freehold Limited | Potters Bar | 2004 |
| 18 Kensington Place (Bath) Management Limited | Bath | 1988 |
| 18 Kuber Plutus Ltd | Pinner | 2021 |
| 18 Leamington Road Villas Limited | London | 2004 |
| 18 Lebanon Gardens Ltd | London | 2019 |
| 18 Lechmere Freehold Ltd | London | 2023 |
| 18 Leigh Street Limited | London | 2014 |
| 18 Lime Hill Road Limited | Tunbridge Wells | 2006 |
| 18 Lloyd Street Management Company Limited | Llandudno | 2008 |
| 18 Logan Road, Wembley, Freehold Limited | Harrow | 2012 |
| 18 Lord Street West Management Company Limited | Wigton | 2009 |
| 18 Marylebone Mews Limited | London | 1995 |
| 18 Maze Hill (ST. Leonards) Limited | St. Leonards-On-Sea | 1977 |
| 18 Merkland Road East Ltd | Aberdeen | 2021 |
| 18 Methuen Road Limited | Dorchester | 2007 |
| 18 Miles Road (Management) Limited | Witney | 1981 |
| 18 Millers Ltd | Evesham | 2020 |
| 18 Millview Ltd | Glasgow | 2019 |
| 18 Miranda Road Management Company Limited | London | 2013 |
| 18 Montagu Street 26 Montagu Mews South RTM Company Limited | Aylesbury | 2025 |
| 18 Nevile CT Ltd | Manchester | 2020 |
| 18 New North Street Management Limited | London | 2000 |
| 18 Niton Road Freeholders Limited | Harrow | 2024 |
| 18 North Road East (Plymouth) Limited | Helston | 1989 |
| 18 Odessa Road Limited | London | 2003 |
| 18 Ogle Street Freehold Ltd | New Milton | 2011 |
| 18 Oriental Place Limited | Surrey | 2003 |
| 18 Oxford Road Canterbury Limited | Canterbury | 1990 |
| 18 Palace Grove Limited | Orpington | 2007 |
| 18 Paragon (Bath) Management Limited | Oxford | 2009 |
| 18 Park Road (Freehold) Limited | Bexhill | 2015 |
| 18 Petherton Road Limited | London | 2005 |
| 18 Poynders Road Limited | | 2007 |
| 18 Properties Limited | London | 2025 |
| 18 Property Management Limited | Eastbourne | 2026 |
| 18 Prosper Hill Limited | Bristol | 2018 |
| 18 Rees Street, London N1 Limited | London | 1996 |
| 18 Ridgway Road Farnham Limited | Devizes | 1993 |
| 18 Rodwell Property Management Ltd | London | 2024 |
| 18 Romney Road Limited | Bournemouth | 2021 |
| 18 Rosenau Crescent Management Company Limited | | 2003 |
| 18 Rutland Gate Ltd | London | 2026 |
| 18 Seaforth Ltd | London | 2024 |
| 18 Seaside Management Company Limited | Chatham | 2006 |
| 18 Silver Street Ltd | Penarth | 2025 |