| 4RC Property Limited | Halesowen | 2022 |
| 4RDWICK Consortium Ltd | Manchester | 2019 |
| 4RDWICK Limited | Manchester | 2019 |
| 4REAL DOE Properties Limited | London | 2024 |
| 4REAL Estate Limited | Llanelli | 2023 |
| 4RH Investment Ltd | London | 2020 |
| 4RM Property Limited | Dundee | 2025 |
| 4RW Ltd | London | 2023 |
| 4S (MCR) Limited | Cheadle | 2021 |
| 4S AI Ltd | Durham | 2024 |
| 4S Corporation (UK) Ltd | Ilford | 2011 |
| 4S Global Properties Ltd | Leicester | 2019 |
| 4S Gupta Ltd | Glasgow | 2023 |
| 4S Homes Ltd | Northwood | 2017 |
| 4S Invest Limited | London | 2024 |
| 4S Management Limited | London | 2019 |
| 4S Properties Ltd | Ilford | 2020 |
| 4S Property Group Ltd | Cheltenham | 2025 |
| 4S Property Investments Ltd | London | 2014 |
| 4S UK Homes Limited | High Wycombe | 2026 |
| 4S&M Properties Limited | Newport | 2026 |
| 4S2 Properties Ltd | Manchester | 2025 |
| 4SALE Online Ltd | Leigh-On-Sea | 2020 |
| 4SALE2U (Barnsley) Limited | Barnsley | 2010 |
| 4SB Commercial Ltd | Oldbury | 2026 |
| 4SEASONS (Cafebars) Ltd | Eastbourne | 2017 |
| 4SEASONS Housing Ltd | Solihull | 2024 |
| 4SG Properties Limited | Reading | 2021 |
| 4SH Limited | London | 2017 |
| 4SHARE Property Ltd | Bristol | 2022 |
| 4SHAW Properties Limited | Whetstone | 2021 |
| 4SHORE UK Limited | Hull | 2018 |
| 4SIGHT Developments Ltd. | Glasgow | 2001 |
| 4SJ Properties Ltd | Bexleyheath | 2025 |
| 4SMG Limited | London | 2024 |
| 4SMS Properties Limited | Egham | 2017 |
| 4SP Ltd | Wembley | 2022 |
| 4SP Properties Ltd | Hayes | 2021 |
| 4STAR Properties Ltd | London | 2024 |
| 4STAR Property Limited | Walsall | 2020 |
| 4STONE Investments Ltd | London | 2026 |
| 4SURE Enterprise Ltd | Croydon | 2025 |
| 4SURE Propco Ltd | Corby | 2023 |
| 4SYTH Properties Limited | Bradford | 2018 |
| 4T Holdings Limited | London | 2020 |
| 4T&P Ltd | Newtownabbey | 2024 |
| 4T'S Investment Limited | Woodford Green | 2019 |
| 4T4 Ltd | Selkirk | 2024 |
| 4T8 Properties Limited | Tonbridge | 2007 |
| 4T8 Property Management Limited | Tonbridge | 2005 |
| 4TEEFY Property Limited | England | 2024 |
| 4TEES Ltd | Erith | 2018 |
| 4TENS Properties Ltd | Brighton | 2022 |
| 4TEULU Limited | Newport | 2024 |
| 4TH Avenue Properties Ltd | High Wycombe | 2022 |
| 4TH Born Ltd | London | 2024 |
| 4TH Developments (PM2) Limited | Glasgow | 2018 |
| 4TH Dimention Limited | Richmond | 2020 |
| 4TH Door Developments Limited | Glasgow | 2025 |
| 4TH House Homes Ltd | Norwich | 2026 |
| 4TH Industrial GP (UK) 2 Limited | London | 2022 |
| 4TH Industrial GP (UK) Ltd | London | 2020 |
| 4TH Industrial Management Ltd | London | 2020 |
| 4TH Industrial Nominee 2 Limited | London | 2022 |
| 4TH Industrial Nominee Ltd | London | 2020 |
| 4TH Property Services Limited | Glasgow | 2011 |
| 4TIFY Properties Ltd | Ellesmere Port | 2024 |
| 4TS Creative Limited | Birmingham | 2022 |
| 4TS Properties Ltd | Birmingham | 2022 |
| 4TS Property Ltd | Rossendale | 2018 |
| 4U Homes Ltd | Batley | 2025 |
| 4U Investments Ltd | Southall | 2024 |
| 4U Move Ltd | London | 2020 |
| 4U Properties Limited | Stockton On Tees | 2020 |
| 4U Property Group Limited | Derby | 2026 |
| 4U2C Homes UK Limited | Hitchin | 2022 |
| 4U2LET Limited | Mansfield | 2006 |
| 4U2NEST Ltd | Swindon | 2024 |
| 4U2RENT Ltd | Usk | 2022 |
| 4UKHT Ltd | Bridgwater | 2022 |
| 4UM Property Group Limited | Manchester | 2024 |
| 4UR Home Limited | Manchester | 2014 |
| 4URBAN Consulting Limited | Harrogate | 2011 |
| 4US4 Ltd | Rugeley | 2015 |
| 4V Enterprise Limited | Northwood | 2022 |
| 4VSH Ltd | Dunstable | 2025 |
| 4W Properties Ltd | Newcastle Upon Tyne | 2023 |
| 4W Property Management Limited | Preston | 2024 |
| 4WALLS Ltd | Hoddesdon | 2018 |
| 4WALLS Property York Ltd | York | 2025 |
| 4WALLS4RENT Ltd | Cardiff | 2019 |
| 4WARD Living Ltd | Leicester | 2020 |
| 4WARD Property & Surveying Ltd | Walsall | 2025 |
| 4WARDCOMMS Limited | Lincoln | 2002 |
| 4WAY Investment Properties Ltd | Potters Bar | 2020 |
| 4WAY Investments Ltd | Potters Bar | 2020 |
| 4WAY Property Services Limited | Newcastle Upon Tyne | 2018 |
| 4WIN Properties Limited | Egham | 2021 |
| 4WOODS Property Investments Ltd | Bedford | 2024 |
| 4X Aces Limited | Bournemouth | 2016 |