| 4HIM Ltd | Kingston Upon Thames | 2018 |
| 4I Holdings Ltd | London | 2022 |
| 4I-SMILE Ltd | Harlow | 2021 |
| 4JK Investment Limited | London | 2023 |
| 4JS Property Maintenance Ltd | Sheffield | 2022 |
| 4K Barber Ltd | Harrow | 2022 |
| 4K Barber Warrington Ltd | Warrington | 2026 |
| 4K Beauty Limited | London | 2024 |
| 4K Cuts Ltd | Romney Marsh | 2022 |
| 4K Cutz Bradford Ltd | Bradford | 2024 |
| 4K Fades Ltd | London | 2022 |
| 4K Fadez Cleethorpes Ltd | Cleethorpes | 2025 |
| 4K SAM Services Ltd | Bacup | 2021 |
| 4LA Consults Ltd | Buckingham | 2025 |
| 4M Barber Ltd | Harrow | 2025 |
| 4M Commissioning Limited | Basildon | 2024 |
| 4M Limited | | 2006 |
| 4M Logistics Global Ltd | Hayes | 2024 |
| 4M Services Ltd | London | 2022 |
| 4MAT Digital Limited | Blackburn | 2019 |
| 4MAT Systems Ltd | Derbyshire | 1998 |
| 4MEN'S Ltd | Antrim | 2023 |
| 4MS Construction Services Limited | Hailsham | 2007 |
| 4MS Services Ltd | Luton | 2017 |
| 4NETWORKING Online Ltd | Tamworth | 2020 |
| 4NL Ltd | Bristol | 2011 |
| 4ORTY2 Ltd | Gloucester | 2007 |
| 4P Home LAB Ltd | London | 2025 |
| 4P Kurdistan Ltd | Smethwick | 2026 |
| 4P Property Services Limited | Berwick-Upon-Tweed | 2016 |
| 4PAWFRIEND Ltd | London | 2025 |
| 4PAWS Pet Services Limited | Birmingham | 2015 |
| 4PEARLZ Company Ltd | Leicester | 2016 |
| 4PEOPLE Ltd | Manchester | 2022 |
| 4PRESTIGE Services Ltd | London | 2018 |
| 4R Cleaning Services Limited | London | 2011 |
| 4RD Property Ltd | London | 2023 |
| 4RT Studio Limited | London | 2018 |
| 4SEASONS Eco Grants Ltd | Bradford | 2024 |
| 4SEND CIC | Croydon | 2024 |
| 4SENSUS Ltd | London | 2024 |
| 4SIGHT Sport Limited | Northamptonshire | 2006 |
| 4SIGHT Vision Support | Bognor Regis | 1999 |
| 4STARS S Ltd | Birmingham | 2015 |
| 4TE Ltd | Nottingham | 2024 |
| 4TH Avenue Ltd | North Shields | 2017 |
| 4TH Dimension Limited | East Grinstead | 2002 |
| 4THEREGION CIC | Swansea | 2018 |
| 4TRESS4U Ltd | Bristol | 2017 |
| 4TS Brewhouse Ltd | Warrington | 2020 |
| 4U Barber Ltd | Middlewich | 2025 |
| 4U Barber Shop Ltd | Llanelli | 2025 |
| 4U Cutz Bo'Ness Ltd | Bo'Ness | 2025 |
| 4U Valeting Supplies Limited | Luton | 2012 |
| 4UR Store Limited | London | 2026 |
| 4WARD Events Ltd | Stourbridge | 2015 |
| 4WARD Sports Promotions Limited | Whetstone | 2011 |
| 4WELLNESS Ltd | London | 2025 |
| 4WILLOW & Co Ltd | London | 2026 |
| 4WT Limited | St. Helens | 2016 |
| 4X4 - Without a Club Limited | Berkshire | 2006 |
| 4XPAWS Limited | Maidenhead | 2025 |
| 4YOU Hairdressing Ltd | Ayr | 2022 |
| 4Z Holdings Ltd | London | 2020 |
| 5 Acres Canine Ltd | Northallerton | 2023 |
| 5 AM Records Limited | West Bromwich | 2000 |
| 5 Brothers Barbers Ltd | High Peak | 2023 |
| 5 C Properties Limited | Carshalton | 2013 |
| 5 Cavendish Limited | London | 2022 |
| 5 Dowry Square Management Company Limited | Bristol | 1997 |
| 5 Drayton Road RTM Limited | London | 2021 |
| 5 DS Sookarry Investments Limited | High Wycombe | 2023 |
| 5 Edward Road Residents Association Limited | Rye | 2001 |
| 5 Financial Legacy Powers Ltd | Bristol | 2020 |
| 5 Gold Ltd | Horsham | 2022 |
| 5 Goldstars Limited | Herne Bay | 2020 |
| 5 Grosvenor Road Limited | Nottingham | 1983 |
| 5 Hot Chillies Limited | Wembley | 2023 |
| 5 Keys Ventures Ltd | Birmingham | 2008 |
| 5 Montpellier Barbers Ltd | Cheltenham | 2026 |
| 5 Nails & Spa Limited | Hull | 2022 |
| 5 Palace Court Management Company Limited | Borehamwood | 2017 |
| 5 Perham Road Residents Association Limited | London | 1999 |
| 5 Pillers UK Ltd | Southall | 2025 |
| 5 Rivers Fitness Ltd | Southall | 2022 |
| 5 Sight Limited | London | 2023 |
| 5 Star Appliance Repair Ltd | Blackheath | 2017 |
| 5 Star Barber (Ryton) Ltd | Ryton | 2025 |
| 5 Star Barber 1 Ltd | Hull | 2023 |
| 5 Star Barber I Ltd | Rushden | 2023 |
| 5 Star Barber Ltd | Oxford | 2017 |
| 5 Star Barber Oadby Limited | Leicester | 2024 |
| 5 Star Barbers (Preston) Ltd | Preston | 2020 |
| 5 Star Barbers Ryton Ltd | Ryton | 2026 |
| 5 Star Barbers Skegness Ltd | Skegness | 2023 |
| 5 Star Barberz Ltd | Coventry | 2024 |
| 5 Star Beauty Ltd | Birmingham | 2024 |
| 5 Star Blouch Limited | Greater Manchester | 2025 |
| 5 Star Car Wash (Scotland) Ltd | Lanark | 2014 |
| 5 Star Chauffeur Services Limited | Dagenham | 2015 |