| 1 Mayfair Management Company Limited | Stafford | 2023 |
| 1 Meldon Terrace Management Company Limited | Newcastle Upon Tyne | 2015 |
| 1 Melville Street Ltd | Torquay | 2022 |
| 1 Merrick Place RTM Company Limited | Bedford | 2022 |
| 1 Merton Road Management Company Limited | Bedford | 2019 |
| 1 Methuen Park Limited | Muswell Hill | 2020 |
| 1 Mill Lane Management Ltd | Guildford | 2026 |
| 1 Millers Road (Brighton) Freehold Limited | Brighton | 2012 |
| 1 Montague Road Felixstowe Management Limited | East Bergholt | 2002 |
| 1 Montpelier Road RTM Company Limited | London | 2022 |
| 1 Mountfield Gardens Limited | Tunbridge Wells | 2001 |
| 1 Murray Avenue Ltd | Rottingdean | 2017 |
| 1 Nancy Road RTM Company Limited | Plymouth | 2015 |
| 1 Nelson Road Freehold Limited | London | 2019 |
| 1 Norfolk Terrace (Brighton) Limited | Brighton | 2009 |
| 1 North Park Road Management Limited | Harrogate | 2015 |
| 1 North Pole Road (Management) Limited | London | 2008 |
| 1 North Road Management Co. Ltd | Chard | 2020 |
| 1 Northbrook Road RTM Company Limited | London | 2010 |
| 1 Northumberland Terrace Management Company Limited | North Shields | 2000 |
| 1 Norway Street Freeholders Limited | Brighton | 2024 |
| 1 Oakley Gardens (Freehold) Limited | London | 2025 |
| 1 Old Broadway Limited | Sudbury | 2025 |
| 1 Osborne Road Management Company Limited(The) | Bristol | 1986 |
| 1 Ovington Square RTM Company Limited | Northwich | 2006 |
| 1 Palmeira Square Hove (Management) Limited | Hove | 1992 |
| 1 Palmer Drive Management Limited | Bradford-On-Avon | 2019 |
| 1 Park Hill Clapham Management Limited | London | 2001 |
| 1 Penn Hill (Yeovil) Limited | Taunton | 2004 |
| 1 Penshurst Road RTM Company Limited | Ramsgate | 2018 |
| 1 Percy Terrace (Plymouth) Management Company Ltd | St. Austell | 2024 |
| 1 Perrers Road Limited | London | 2010 |
| 1 Peterborough Villas Limited | London | 1998 |
| 1 Pinfold Road Limited | London | 2008 |
| 1 Podmore Road Management Company Limited | Brighton | 2023 |
| 1 Portchester Place RTM Company Limited | Bournemouth | 2018 |
| 1 Portland Place Management Limited | Wells | 2009 |
| 1 Portland Villas Freehold Limited | Gravesend | 2023 |
| 1 Portsmouth Avenue Management Limited | Thames Ditton | 2024 |
| 1 Primrose Gardens Residents Company Limited | London | 1992 |
| 1 Princes Road Management Limited | Wimbledon | 2008 |
| 1 Prop Co Ltd | Polegate | 2023 |
| 1 Providence Lane Management Company Limited | Bristol | 2020 |
| 1 Purley Place Management Ltd | Coventry | 2024 |
| 1 Quarry Crescent Limited | St. Leonards-On-Sea | 2017 |
| 1 Queens Avenue Limited | Bradley Stoke | 2011 |
| 1 Queensberry Place RTM Company Limited | London | 2016 |
| 1 Randolph Crescent Management Company Limited | | 1983 |
| 1 Ravenhurst Avenue RTM Company Limited | London | 2020 |
| 1 Ravenna Road Management Company Ltd. | London | 2014 |
| 1 Ravenscroft Avenue Freehold Ltd | London | 2022 |
| 1 Rawden Place Freehold Ltd | Cardiff | 2019 |
| 1 Rawlinson Road Management Limited | | 1990 |
| 1 Regent Square Freehold Limited | Seaton | 2009 |
| 1 Regent Street Management Ltd | Nottingham | 2023 |
| 1 Richmond Street Freehold Limited | Croydon | 2022 |
| 1 Richmond Terrace Flat Management Limited | Bristol | 1994 |
| 1 Ridge Road Freehold Management Limited | St. Albans | 2011 |
| 1 Ringmer Road Seaford Limited | East Sussex | 2003 |
| 1 Rippington Drive (Old Marston) Management Company Limited | Kidlington | 2006 |
| 1 River Terrace Henley-On-Thames Limited | Oxfordshire | 2004 |
| 1 Rockery Lane Limited | Todmorden | 2022 |
| 1 Rockleaze Avenue Limited | Bristol | 1982 |
| 1 Rockleaze Management Limited | Exeter | 1985 |
| 1 Roland Gardens Freehold Management Limited | London | 2025 |
| 1 Rosebery Place Management Company Limited | Penarth | 2002 |
| 1 Rosemont Road Freehold Limited | London | 2021 |
| 1 Royal Crescent Management Company Limited | Oxford | 1988 |
| 1 Royal Crescent Scarborough Management Limited | Scarborough | 2021 |
| 1 Russell Road RTM Company Limited | London | 2025 |
| 1 Rutland Gate Limited | London | 1983 |
| 1 Saville Road Management Company Limited | London | 2012 |
| 1 Savoy Road Limited | London | 2012 |
| 1 School Road Brislington (Management Company) Limited | Bristol | 2014 |
| 1 Seagrave Road Freehold Ltd | Fulham | 2017 |
| 1 Send Road Management Company Limited | Reading | 2019 |
| 1 Shalimar Road Limited | London | 2011 |
| 1 Shirley Church Road Croydon Management Company Limited | Bromley | 2019 |
| 1 Sion Hill Limited | Ramsgate | 2002 |
| 1 Sion Hill Place Bath Management Company Limited | Bath | 2023 |
| 1 South Park Road Limited | Bournemouth | 2010 |
| 1 South Road W-S-M Flat Management Limited | Avon | 1984 |
| 1 South View (Menston) Management Company Limited | Ilkley | 2016 |
| 1 Southside Limited | London | 2005 |
| 1 Spencers Belle VUE (Bath) Management Company Limited | Croydon | 1989 |
| 1 Springall Street RTM Company Ltd | London | 2013 |
| 1 Springfield Road Management Ltd | Ilfracombe | 2013 |
| 1 ST Aubyns Management Company Limited | Northampton | 2004 |
| 1 ST Augustine Road (Littlehampton) RTM Company Limited | West Sussex | 2024 |
| 1 ST Georges Avenue (Freehold) Ltd | London | 2014 |
| 1 ST Georges Square Freehold Limited | Hoddesdon | 2007 |
| 1 ST Lawrence Green (Crediton) Management Company Limited | Crediton | 2020 |
| 1 ST Margaret's Terrace (Freehold) Limited | Hartfield | 2022 |
| 1 ST Martin's Court Management Company Limited | Weymouth | 2009 |
| 1 ST Martin's Road RTM Company Limited | Reading | 2009 |
| 1 ST Mary's Court Shrewsbury Management Limited | Shrewsbury | 2006 |
| 1 ST Mary's Management Company Limited | Watford | 2011 |
| 1 ST Marys Freehold Limited | London | 2024 |
| 1 ST Saviour's Management Company Limited | | 2004 |
| 1 ST Thomas Road Management Company Limited | Newquay | 2026 |