| 1 Spring Grove Road Limited | Richmond | 2012 |
| 1 Square Management Ltd | Streatham Hill | 2024 |
| 1 ST Katharine's Way Tenant Limited | London | 2015 |
| 1 ST Matthews Road Limited | St. Leonards-On-Sea | 2021 |
| 1 ST Peter's Square Tenant Limited | London | 2017 |
| 1 Stanhope Gardens Limited | St. Albans | 2015 |
| 1 Stanley Place Limited | | 1981 |
| 1 Stapleford Road Management Company Ltd | Luton | 2025 |
| 1 Station Approach Management Limited | Uxbridge | 2015 |
| 1 Station Road Leasehold Limited | Croydon | 2021 |
| 1 Station Square Ltd | London | 2020 |
| 1 Step Holdings Limited | Bradford | 2021 |
| 1 Step London Ltd | London | 2023 |
| 1 Step Properties Limited | Bradford | 2006 |
| 1 Sterling Properties Ltd | Romford | 2026 |
| 1 Stonor Road West Kensington Limited | London | 2012 |
| 1 Stop Investments Ltd | Peterborough | 2019 |
| 1 Stop Letting Solutions Ltd | Rayners Lane | 2011 |
| 1 Stop Lettings (Aber) Limited | Aberystwyth | 2011 |
| 1 Stop Properties (Glasgow) Limited | Glasgow | 2005 |
| 1 Stop Property Investments Ltd | Leeds | 2025 |
| 1 Stop Property Limited | Ilford | 2015 |
| 1 Stop Property Services UK Limited | Margate | 2002 |
| 1 Strathray Gardens NW3 Limited | Wallington | 2002 |
| 1 Sunderland Terrace Limited | Gloucester | 1996 |
| 1 Tan-Y-Bryn Street Limited | Aberdare | 2009 |
| 1 Tapestry Gardens RTM Company Limited | Wirral | 2009 |
| 1 TEN Group Ltd | Northampton | 2022 |
| 1 the Avenue Investments Limited | Manchester | 2006 |
| 1 the Circuits Limited | Harrow | 2024 |
| 1 the Crescent Trading Ltd | Plymouth | 2018 |
| 1 the Esplanade & 1 Abbey Terrace Whitby RTM Company Limited | Hull | 2024 |
| 1 the Guild Limited | Blackpool | 2018 |
| 1 the Pavilion Ltd | Southall | 2022 |
| 1 the Place Ltd | Leicester | 2019 |
| 1 the Print Works RTM Company Limited | Market Harborough | 2012 |
| 1 Theobald's Court Partnerco Limited | London | 2009 |
| 1 to 10 Clayton Court Ltd | London | 2010 |
| 1 to 5 Bedford Villas Ltd | London | 2013 |
| 1 to 5 Stays Ltd | Worksop | 2026 |
| 1 Tonsley Road Management Limited | London | 2011 |
| 1 TR Limited | London | 2021 |
| 1 TW Properties Limited | Bromborough | 2020 |
| 1 UP Management Company Limited | London | 2007 |
| 1 Upper Brook Street (Freehold) Ltd | Hoddesdon | 2017 |
| 1 Voyage Limited | Helmsley | 2003 |
| 1 Walpole Terrace Brighton Limited | Brighton | 2005 |
| 1 Ward Street Ltd | Liss | 2021 |
| 1 Warrior Gardens Management Limited | East Sussex | 2002 |
| 1 Waterhouse Square Tenant Limited | London | 2018 |
| 1 Waterloo Road Management Ltd | Midsomer Norton | 2021 |
| 1 Way Property Solutions Ltd | Derby | 2026 |
| 1 Wendell RD Company Ltd | London | 2012 |
| 1 West Heath Lodge Ltd | London | 2018 |
| 1 West Road Care Ltd | London | 2026 |
| 1 Westmoreland Ltd | Harrow | 2017 |
| 1 Weymouth Street (Management) Bath Limited | Bath | 1992 |
| 1 Whitehall Ltd | London | 2025 |
| 1 Wick Road Management Limited | Bristol | 2015 |
| 1 Wilton Street RTM Company Limited | Plymouth | 2010 |
| 1 Wind Street Ltd | Swansea | 2025 |
| 1 Woodcote Fold Ltd | Manchester | 2018 |
| 1 World Associates Limited | Wembley | 2024 |
| 1)ST Vincent Properties Limited | London | 2026 |
| 1, 2 and 4 Marcus Terrace Residents Ltd | London | 2012 |
| 1,2,3,4 YEW Trees Flat Management Limited | Redditch | 2016 |
| 1,3,5 & 7 Nursery Drive Management Company Limited | Banbury | 1996 |
| 1- 4 Hobart Close Freehold Limited | London | 2026 |
| 1-1 Homes Ltd | London | 2019 |
| 1-1 Services Ltd | London | 2021 |
| 1-11 Willow Lane Management Company Limited | Fleet | 2005 |
| 1-12 Elizabeth Place Property Management Company Limited | Wimborne | 2013 |
| 1-12 Lily House RTM Company Ltd | Wickford | 2015 |
| 1-12 Linden Court RTM Company Limited | London | 2015 |
| 1-12 Roach View Limited | Southend-On-Sea | 2008 |
| 1-12 Romside Place (Romford) RTM Company Limited | Bromley | 2022 |
| 1-12 Winkley Court Freehold Limited | Bury | 2020 |
| 1-13 (Odds) Greenlands Road RTM Company Limited | Washington | 2025 |
| 1-14 Chamberlain Close (Ilford) RTM Company Limited | Bromley | 2014 |
| 1-14 Elmwood Management Limited | Harrow | 2005 |
| 1-14 Outwood Grange Freeholders Limited | Dorking | 2016 |
| 1-16 Bluecoats Yard (Maidstone) RTM Company Limited | Bromley | 2021 |
| 1-19 Plaza Close Ltd | Halstead | 2018 |
| 1-2 Embankment Gardens Limited | Marlow | 2012 |
| 1-2 Gloucester Street Clifton Management Company Limited | Bristol | 1993 |
| 1-2 Wilmot Place Management Ltd | Leicester | 2021 |
| 1-2-1 Investments (Scot) Ltd | Glasgow | 2024 |
| 1-2-LET (Lettings & Sales) Ltd | Glasgow | 2012 |
| 1-24 Armsby House Freehold Limited | Romford | 2020 |
| 1-25 School Lane Management Company Limited | Stockport | 2003 |
| 1-27 (Odds) TIR Founder Fields RTM Company Limited | Washington | 2021 |
| 1-28 Kensington Court Gardens Limited | Milton Keynes | 2018 |
| 1-3 Beaumont Mews Ltd | Godalming | 2017 |
| 1-3 Cleveland Gardens Limited | London | 2017 |
| 1-3 Cross Street Limited | Telford | 2026 |
| 1-3 High Street E13 Ltd | London | 2023 |
| 1-3 Trevena Management Company Limited | Truro | 2023 |
| 1-3 Upper James ST Limited | 7Th Floor | 2016 |
| 1-3 Woodlands Road RTM Company Ltd | Redhill | 2021 |
| 1-3-5 Bridge Wharf Freehold Limited | Isleworth | 2018 |