| 13 Bedford Square Limited | Brighton | 2016 |
| 13 Belsize Grove Limited | London | 1963 |
| 13 Belsize Park Gardens (Hampstead) Limited | Barnet | 1996 |
| 13 Birchanger Road Residents Management Company Limited | Ipswich | 2024 |
| 13 Birdhurst Road South Croydon Management Co. Limited | South Croydon | 1986 |
| 13 Blenheim Park Road Limited | London | 2020 |
| 13 Bohemia Road Ltd | St. Leonards-On-Sea | 2004 |
| 13 Bonchurch Road Management Limited | London | 2002 |
| 13 Boyden House Ltd | London | 2018 |
| 13 Brecknock Road Limited | London | 2026 |
| 13 Bromfield Street Management Company Limited | London | 2005 |
| 13 Brookfurlong Ltd | Peterborough | 2018 |
| 13 Buckingham Road Management Limited | Brighton | 2004 |
| 13 Campden Road (FLAT1) Limited | London | 2022 |
| 13 Campden Road Freehold Ltd | London | 2023 |
| 13 Candler Ltd | London | 2024 |
| 13 Cantons Limited | Altrincham | 2026 |
| 13 Capital Limited | Wolverhampton | 2019 |
| 13 Carysfort Road N8 Limited | London | 2013 |
| 13 Castellain Road Limited | London | 2005 |
| 13 Chapter House Management Company Limited | London | 2013 |
| 13 Chaucer Crescent Ltd | London | 2023 |
| 13 Cissbury Road Hove Limited | Hove | 1986 |
| 13 Clarendon Road Management Company Limited | Bristol | 1982 |
| 13 Clarendon Villas (Freehold) Limited | Brighton | 2016 |
| 13 Cloudesley Road Freehold Ltd | Bexhill-On-Sea | 2016 |
| 13 Clouds Ltd | London | 2025 |
| 13 Coleherne Road Limited | London | 2009 |
| 13 College Road Ltd | London | 2022 |
| 13 Connaught Road Limited | London | 2025 |
| 13 Connaught Road Management Limited | Enterprise Park | 2005 |
| 13 Cooper Street Bideford Limited | Bideford | 2019 |
| 13 Cromer Road Freehold Limited | London | 2016 |
| 13 Davigdor Road Freehold Limited | Brighton | 2020 |
| 13 Delia Street Wandsworth Limited | London | 2015 |
| 13 Denbigh ST Limited | Knutsford | 2013 |
| 13 Denning Road Freehold Ltd | London | 2025 |
| 13 Denver Limited | London | 2021 |
| 13 Developments and Dwellings Ltd | Leicester | 2025 |
| 13 Dorset Road Limited | London | 1999 |
| 13 Downing Street Limited | Hungerford | 2017 |
| 13 DPR Limited | Great Marlings | 1999 |
| 13 Draxford Limited | Bolton | 2026 |
| 13 Eastleigh Ltd | Woodford Green | 2025 |
| 13 Eldon Square Freehold Limited | Reading | 2003 |
| 13 Exeter Road Management Company Ltd | London | 1997 |
| 13 Farlton Road Limited | New Malden | 2001 |
| 13 Franklin Street Ltd | London | 2018 |
| 13 Fulham Park Gardens Ltd | London | 2023 |
| 13 Gascony Avenue Freehold Ltd | London | 2015 |
| 13 Gautrey Road (London) Limited | Halesworth | 2008 |
| 13 GAY Street (Bath) Management Company Limited | Dulverton | 2000 |
| 13 Gayton Road Management Company Limited | Watford | 2000 |
| 13 Gleneagle Road RTM Company Limited | London | 2009 |
| 13 Goldsmid Road Hove Limited | | 2005 |
| 13 Grosvenor Crescent Management Limited | Scarborough | 2020 |
| 13 Harecourt Road Limited | London | 1993 |
| 13 Hartfield Road Management Company Limited | East Sussex | 1998 |
| 13 Haven Avenue Limited | Stoke-On-Trent | 2025 |
| 13 Heath Drive Limited | London | 1996 |
| 13 Heathland Ltd | London | 2019 |
| 13 Hinton Road Management Company Limited | Bristol | 2017 |
| 13 Holland Road Limited | Woodstock | 1999 |
| 13 Homes Limited | Slough | 2021 |
| 13 Hshh Ltd | Hampton | 2022 |
| 13 Imperial Ltd | Croydon | 2021 |
| 13 Jeffreys Road Management Company Limited | London | 1998 |
| 13 Jubilee Road Limited | Bristol | 2017 |
| 13 Junction Road Right to Manage Company Limited | Burgess Hill | 2008 |
| 13 Kings Grove RTM Company Ltd | London | 2021 |
| 13 Landmark Property Development Ltd | Bexhill | 2020 |
| 13 Lawrence Road (Hove) Freehold Limited | Hove | 2020 |
| 13 London Road Limited | London | 2006 |
| 13 Mandela Street Freehold Limited | London | 2025 |
| 13 Manor Road RTM Company Limited | Beckenham | 2012 |
| 13 Marlborough Road Management Company Limited | Watford | 1988 |
| 13 Melrose Road Freeholders Limited | London | 1992 |
| 13 MGA Ltd | London | 2020 |
| 13 Murray Grove RTM Company Ltd | Broadstairs | 2014 |
| 13 Neighbours Limited | London | 2021 |
| 13 Oakfield Road Residents Management Limited | Surrey | 2001 |
| 13 Oakhill Road Management Company Limited | London | 1999 |
| 13 Oaklands Grove RTM Company Limited | Folkestone | 2016 |
| 13 One 13 Limited | Cardiff | 2016 |
| 13 Osborne Road Management Limited | Bristol | 1974 |
| 13 Palace Gate Management Limited | London | 2001 |
| 13 Percy Street Ltd | Newcastle Upon Tyne | 2020 |
| 13 Perry Road Ltd | Birmingham | 2025 |
| 13 Petworth Road Limited | Haslemere | 2011 |
| 13 Poplar Grove RTM Company Ltd | London | 2022 |
| 13 Porchester Road Management Limited | London | 2021 |
| 13 Private Ltd | Glasgow | 2026 |
| 13 Properties Ltd | West Bromwich | 2024 |
| 13 Property Developments Limited | Cottingham | 2025 |
| 13 Property Group Limited | Motherwell | 2024 |
| 13 Property Holdings Ltd | London | 2026 |
| 13 Property Ltd | Manchester | 2024 |
| 13 Property Management Limited | Bolton | 2025 |
| 13 Property Street Limited | Nuneaton | 2020 |
| 13 Proprietors Limited | Southall | 2024 |