| 241 Acton Lane Limited | London | 2007 |
| 241 Property Ltd | Orpington | 2015 |
| 241 Royton Car Wash Ltd | Oldham | 2026 |
| 242 Consulting Limited | Warrington | 2008 |
| 242 Group Ltd | Redditch | 2022 |
| 245 P&E Ltd | Glasgow | 2008 |
| 24601 Limited | Edinburgh | 2016 |
| 247 Access Limited | London | 2016 |
| 247 Alliance Ltd | Birmingham | 2015 |
| 247 AR Limited | Slough | 2015 |
| 247 Best Clean Ltd | London | 2021 |
| 247 Blocked Drains Cleaning Ltd | Birmingham | 2021 |
| 247 Blue Diamond Care Ltd | London | 2023 |
| 247 Cctv and Security Ltd | Settle | 2026 |
| 247 Clean Commercial & Domestic Ltd | Bilston | 2025 |
| 247 Commercial Rescue Services Limited | Northwood | 2025 |
| 247 Cover Ltd | London | 2018 |
| 247 DD Security Ltd | Coventry | 2023 |
| 247 Docs Online Limited | Andover | 2025 |
| 247 Eco Leads Ltd | Reading | 2022 |
| 247 Elite Cleaning Ltd | Hamilton | 2019 |
| 247 Emergency Call OUT Ltd | South Croydon | 2020 |
| 247 Exterior Cleaning Ltd | Ayr | 2021 |
| 247 Fleets Ltd | London | 2025 |
| 247 General Industrial Cleaning Ltd | Coventry | 2026 |
| 247 Guards Limited | Stockport | 2017 |
| 247 Health Care Staffing Solutions Ltd | Norwich | 2023 |
| 247 Home Rescue Limited | Burnley | 2015 |
| 247 Jada Ltd | London | 2022 |
| 247 Legals Limited | Harrow | 2020 |
| 247 London Concierge Limited | London | 2018 |
| 247 Money Group Limited | Manchester | 2017 |
| 247 National Limited | Wokingham | 2013 |
| 247 Personnel Ltd | Spalding | 2009 |
| 247 Private Security Ltd | London | 2024 |
| 247 Provisions Ltd | Ilford | 2022 |
| 247 Secure Installations Ltd. | Cardiff | 2020 |
| 247 Secure Limited | Nottingham | 2014 |
| 247 Security (NW) Ltd | Blackburn | 2026 |
| 247 Security FM Ltd | Ilford | 2025 |
| 247 Security Guards Ltd | Coventry | 2022 |
| 247 Security Solutions Ltd | Hove | 2022 |
| 247 Self Storage Ltd | Liverpool | 2024 |
| 247 Stores Controller Ltd | London | 2016 |
| 247 Virtual Support Ltd | London | 2023 |
| 247365 Limited | Slough | 1998 |
| 247CONSULTANCY Ltd | Derby | 2022 |
| 247NETWORK Limited | Rotherham | 2020 |
| 247PAYMENTS Limited | Chorley | 2022 |
| 247PMIUK Limited | Crewe | 2025 |
| 247SSUK Limited | Crewe | 2025 |
| 247STUK Dispatch Ltd | London | 2025 |
| 247UK Dispatch Ltd | London | 2025 |
| 249 Management Ltd | Altrincham | 2024 |
| 24:7 Security Manchester Limited | Manchester | 2015 |
| 24:FM Limited | Bromsgrove | 2018 |
| 24CLEANING Ltd | Birmingham | 2024 |
| 24GG Limited | Hailsham | 2024 |
| 24H Locksmiths Ltd | London | 2023 |
| 24H Recruitment Solutions Ltd | Nottingham | 2019 |
| 24HAYMARKET (KCP Nominees) Limited | London | 2022 |
| 24HAYMARKET BBI (KCP Nominees) Limited | London | 2021 |
| 24HR Care Limited | Dagenham | 2020 |
| 24HR Dynamic Care Ltd | Paisley | 2021 |
| 24HR Healthcare Limited | Burnley | 2009 |
| 24HR Solutions Ltd | St Albans | 2012 |
| 24HR Staff Limited | Glasgow | 2016 |
| 24HRLOCKS Limited | Leyland | 2023 |
| 24HRS Gripix Ltd | Stoke-On-Trent | 2026 |
| 24HRS Lockdown Group Limited | Wellingborough | 2025 |
| 24JTMCL Limited | London | 2024 |
| 24K Security Limited | Epsom | 2026 |
| 24KEYS Limited | Cheltenham | 2014 |
| 24R Limited | Bampton | 2005 |
| 24SE7EN Limited | Sidcup | 2019 |
| 24SEVEN Companies Ltd | Saffron Walden | 2011 |
| 24SEVEN FM Services Limited | Bangor | 2025 |
| 24SEVEN Hire Limited | Ashford | 2002 |
| 24SEVEN Medics and Recruitment Services Limited | London | 2011 |
| 24SS Ltd | Liverpool | 2020 |
| 24SSG Security Ltd | Birmingham | 2022 |
| 24STORE Limited | Telford | 2021 |
| 24TRUE Care Ltd | Portsmouth | 2023 |
| 24X7 Home Appliance Support Ltd | London | 2018 |
| 24X7 Special Needs Holiday Trading Limited | Dunmow | 2016 |
| 25 Agincourt Road Limited | Barnet | 1980 |
| 25 BID Limited | Birmingham | 2005 |
| 25 Carnarvon RD RTM Company Ltd. | Greenwich | 2014 |
| 25 Cleaning Ltd | Maidstone | 2025 |
| 25 Devereux Road Limited | | 2003 |
| 25 Earls Terrace Limited | Winchester | 2020 |
| 25 Gleneagle Road Management Company Limited | London | 1995 |
| 25 GWR Limited | Bury St Edmunds | 2011 |
| 25 Lansdowne Road (FH2) Limited | London | 2015 |
| 25 Leighton Grove Freehold Ltd | London | 2017 |
| 25 Lime Grove RTM Company Ltd | Petersfield | 2014 |
| 25 Rent Ltd | London | 2022 |
| 25 Rothsay Road Management Company Limited | Cambridge | 1993 |
| 25 Seven Talent Solutions Ltd | Wolverhampton | 2022 |
| 25 Sinclair Gardens Limited | | 1994 |