| 5K Homes Ltd | Birmingham | 2020 |
| 5K Investments Phoenix Bradford Limited | London | 2021 |
| 5K Properties Ltd | Dartford | 2013 |
| 5K Properties Midland Limited | Wolverhampton | 2024 |
| 5K Real Estate Limited | Uxbridge | 2017 |
| 5K Universal Ltd | London | 2016 |
| 5KR Ltd | Waltham Abbey | 2019 |
| 5KX Commercials Limited | Birmingham | 2024 |
| 5L Properties Ltd | Hampton | 2018 |
| 5LEVELS Properties Limited | Braintree | 2021 |
| 5M Company Limited | Lymington | 1981 |
| 5M Estates Ltd | Renfrew | 2023 |
| 5M Group Limited | Harrow | 2016 |
| 5M Housing Solutions Ltd | Dagenham | 2023 |
| 5M Property Investment Ltd | London | 2018 |
| 5MCL Ltd | Fareham | 2026 |
| 5MF Ltd | London | 2024 |
| 5MPV Limited | | 2007 |
| 5MR Limited | London | 2013 |
| 5MS Properties Ltd | Aberdeen | 2023 |
| 5MU Properties Ltd | Edinburgh | 2014 |
| 5N Investment Ltd | Essex | 2025 |
| 5NINES Global Ltd. | London | 2015 |
| 5NYP Ltd | Birmingham | 2023 |
| 5OLP Limited | Sunbury-On-Thames | 2012 |
| 5P Holdings Ltd | Sutton Coldfield | 2024 |
| 5PI Limited | Dartford | 2015 |
| 5PR TW LL Limited | London | 2025 |
| 5PR TW Residential Limited | London | 2025 |
| 5QBANAT Limited | London | 2021 |
| 5QR Limited | Surrey | 1998 |
| 5R Holdings Ltd | Birmingham | 2018 |
| 5R Investments Ltd | Walsall | 2021 |
| 5R Limited | Mildenhall | 2025 |
| 5R Properties Limited | Dartford | 2022 |
| 5R Property Holdings Limited | Scunthorpe | 2020 |
| 5RBG Ltd | Didsbury | 2026 |
| 5RL Limited | Alton | 2003 |
| 5ROOMS Ltd | Newport Pagnell | 2019 |
| 5RP Ltd | Sheffield | 2024 |
| 5RS Homes Ltd | Grays | 2022 |
| 5S Abode Limited | Leicester | 2021 |
| 5S Investments Ltd | Manchester | 2024 |
| 5S Properties Ltd | Bristol | 2025 |
| 5S Property Investment Company Ltd | Colchester | 2020 |
| 5SAINTS Ltd | Gravesend | 2019 |
| 5SINGH Properties Ltd | London | 2025 |
| 5SIXTERS Limited | Wigan | 2025 |
| 5SM Ltd | Clitheroe | 2026 |
| 5SPACES Limited | Thornhill | 2026 |
| 5STA Property Ltd | Wigan | 2026 |
| 5STAR Premier House Ltd | Bolton | 2025 |
| 5STARWEALTH Ltd | Bexleyheath | 2025 |
| 5T Investments Limited | Paisley | 2024 |
| 5T Limited | Taunton | 2002 |
| 5T Property Limited | Northampton | 2026 |
| 5TH AVE Ltd | London | 2023 |
| 5TH Avenue Homes Ltd | Glasgow | 2025 |
| 5TH Avenue Housing Ltd | Milton Keynes | 2021 |
| 5TH Avenue Lettings Ltd | Motherwell | 2025 |
| 5TH Estates Limited | London | 2022 |
| 5TH Generation Property Ltd | Dronfield | 2022 |
| 5TH Property Trading Limited | London | 2004 |
| 5TH Settlement Properties Ltd | London | 2019 |
| 5TH Wave Ltd | Birmingham | 2022 |
| 5TJ Limited | Belfast | 2015 |
| 5TORONTO Properties Limited | Durham | 2024 |
| 5TPK Business Ltd | Manchester | 2025 |
| 5TTS Limited | London | 2015 |
| 5TUDIO Ltd | Coventry | 2023 |
| 5UML Ltd | Glasgow | 2024 |
| 5W New Ltd | Southampton | 2025 |
| 5W Property Ltd | Lanark | 2022 |
| 5WHS LDN UK PTE Ltd | London | 2022 |
| 5WJC Ltd | London | 2023 |
| 5WV Property Limited | Plymouth | 2024 |
| 5X5 Properties Limited | Reading | 2025 |
| 5X5 Property Limited | Bath | 2017 |
| 5XM Limited | Upminster | 1997 |
| 5Y3D Property Limited | Luton | 2025 |
| 5YED Ltd | Birmingham | 2016 |
| 5Z Properties Ltd | London | 2021 |
| 6 & 6A Mandalay Road Management Limited | London | 2003 |
| 6 & 6A Rosetta Park Apartments Management Company Limited | Newtownabbey | 2007 |
| 6 & 7 Dixon Close (Freehold) Limited | London | 2019 |
| 6 & 8 Bromley Crescent Limited | Bromley | 1999 |
| 6 & 8 the Square Management Company Limited | Bury | 2025 |
| 6 Aldrich Road Limited | Bicester | 2015 |
| 6 Aldridge Road Villas Management Limited | London | 2016 |
| 6 Alfred Street Bath Management Company Limited | | 1998 |
| 6 Ancona Road Limited | London | 2019 |
| 6 and 8 Harlyn Drive Limited | Pinner | 2005 |
| 6 Augusta Gardens Freehold Limited | Folkestone | 2026 |
| 6 B Properties Limited | Liverpool | 2021 |
| 6 Barton Buildings Management Company Limited | Bath | 2013 |
| 6 Bath Street Frome (Management) Limited | Frome | 1996 |
| 6 Bath Street Ltd | London | 2025 |
| 6 Bath Street Subco Limited | London | 2025 |
| 6 Bear ST Ltd | Bristol | 2026 |
| 6 Belsize Square Limited | | 1999 |