| 24 Servis Ltd. | Oldham | 2012 |
| 24 Seven Jobs Ltd | Lichfield | 2025 |
| 24 Seven Security & FM Ltd | London | 2024 |
| 24 Seven Security Services (London) Limited | Loughton | 2001 |
| 24 Seven UK Limited | London | 2007 |
| 24 Severn Civil Engineering & Groundworks Ltd | Ilkeston | 2023 |
| 24 Shelgate Road Limited | London | 2008 |
| 24 ST Andrews Road Limited | Bridport | 2006 |
| 24 Superior Cleaning Limited | Warrington | 2018 |
| 24 Talbot Road Freehold Company Limited | London | 2019 |
| 24 Terrapin Road Management Company Limited | London | 2007 |
| 24 the Best Cleaning Ltd | Leeds | 2022 |
| 24 TRK Solutions Limited | Ilford | 2024 |
| 24 Vehicle Hire Limited | London | 2026 |
| 24 X 7 (Investment) Limited | Dunmow | 2009 |
| 24 X 7 (Ventures) Limited | Little Easton Dunmow | 2015 |
| 24-28 Cambridge Road Limited | London | 2010 |
| 24-7 Agencies Ltd | Faversham | 2024 |
| 24-7 Arms Care Limited | Leicester | 2022 |
| 24-7 Aviation Services Limited | Hertford | 2017 |
| 24-7 Customs Limited | Maidstone | 2021 |
| 24-7 Electrical Services Yorkshire Ltd | Leeds | 2017 |
| 24-7 Employment Services Ltd | Tonbridge | 2022 |
| 24-7 FM Limited | Knutsford | 2002 |
| 24-7 Industrial Services UK Ltd | Sutton Coldfield | 2014 |
| 24-7 Language Services Ltd | Croydon | 2013 |
| 24-7 Locums Central Limited | Birmingham | 2008 |
| 24-7 Property Assistance Ltd | Blandford Forum | 2026 |
| 24-7 REC Services 119 Limited | London | 2016 |
| 24-7 Recruitment Ltd | Cardiff | 2024 |
| 24-7 Secure Systems Ltd | Nottingham | 2023 |
| 24-7 Security Fire and Data Limited | Knutsford | 2020 |
| 24-7 Security Ltd. | Camberley | 2001 |
| 24-7 Staff Hub Ltd | Walsall | 2022 |
| 24-7 Staffing Limited | Chippenham | 2003 |
| 24-7 Steller Packing Limited | Tonbridge | 2017 |
| 24-7 Systems Ltd | Rotherham | 2024 |
| 24-8 Virtual PA Ltd | Wallington | 2017 |
| 24/6 AKI Cleaners Limited | Hayes | 2026 |
| 24/7 ANY Weather Cleaning Ltd | Rochdale | 2025 |
| 24/7 Bike Hire Limited | London | 2024 |
| 24/7 Boxes and Packaging Ltd | Colchester | 2012 |
| 24/7 Business Finance Ltd | Manchester | 2022 |
| 24/7 Car Key Guardian Limited | Manchester | 2025 |
| 24/7 Cars Gravesham Ltd | Riddlesden | 2019 |
| 24/7 Center Care Ltd | London | 2022 |
| 24/7 Cleaning Ltd | Leeds | 2026 |
| 24/7 Crisis Home Help & Care Limited | Manchester | 2019 |
| 24/7 CS Limited | Halifax | 2014 |
| 24/7 Day & Knight Drainage Ltd | London | 2026 |
| 24/7 Defence Ltd | Luton | 2024 |
| 24/7 Divine Healthcare Limited | London | 2022 |
| 24/7 E-Filings Ltd | Southall | 2025 |
| 24/7 Elaine's Minitravel Ltd | Swansea | 2017 |
| 24/7 Elite Security Limited | Barnsley | 2024 |
| 24/7 Emergency Drains & Plumbing Ltd | Eastbourne | 2026 |
| 24/7 Euro Security Wardens Limited | Warrington | 2011 |
| 24/7 Event Crew Limited | Plymouth | 2019 |
| 24/7 Exceptional Care & Recruitment Services Limited | Hull | 2021 |
| 24/7 Facilities Management Ltd | King'S Lynn | 2021 |
| 24/7 Facilities Support Ltd | London | 2025 |
| 24/7 Fire and Security Protection Ltd | Darwen | 2018 |
| 24/7 Global Business Support Limited | Cardiff | 2019 |
| 24/7 Guard & FM Limited | Ilford | 2023 |
| 24/7 Home & Maintenance Solutions Ltd | London | 2024 |
| 24/7 Immaculate Cleaning Limited | Lisburn | 2024 |
| 24/7 Investments Ltd | Warrington | 2017 |
| 24/7 K9 Services Ltd | Bradford | 2019 |
| 24/7 Lifting Solutions Limited | Wortley | 2015 |
| 24/7 Luna Care Limited | London | 2021 |
| 24/7 Passenger Transport Services Ltd | Royal Wootton Bassett | 2014 |
| 24/7 People Solutions Limited | Leamington Spa | 2018 |
| 24/7 Premium Cleaning Services Ltd | Cardiff | 2019 |
| 24/7 Private Hire Rental Ltd | Birmingham | 2025 |
| 24/7 Productions (UK) Ltd | London | 2002 |
| 24/7 PTS Fleet Ltd | Swindon | 2023 |
| 24/7 Recovery and Rescue Limited | Liverpool | 2007 |
| 24/7 Recruitment Services UK Ltd | Walsall | 2025 |
| 24/7 Recruitment Solutions Ltd | Slough | 2004 |
| 24/7 Response Security Solutions Limited | Birmingham | 2014 |
| 24/7 Response Security Team Ltd | Luton | 2016 |
| 24/7 RTA Company Ltd | Wakefield | 2019 |
| 24/7 Security and Events Ltd | Driffield | 2015 |
| 24/7 Security Protection Ltd | Colne | 2020 |
| 24/7 Security Services Ltd | Taunton | 2015 |
| 24/7 Security UK Limited | London | 2003 |
| 24/7 Security Watch Ltd | Chippenham | 2012 |
| 24/7 Staffing Solutions Limited | London | 2009 |
| 24/7 Staffing Support Ltd | Kettering | 2014 |
| 24/7 Surveilance Security Ltd | Colne | 2021 |
| 24/7 Trailer Services Ltd | Dungannon | 2013 |
| 24/7 Valleting Centre Ltd | Chester | 2025 |
| 24/7 Vehicle Storage Ltd | Peterborough | 2021 |
| 24/7 Vision Limited | Chatham | 2026 |
| 24/7 Worldwide Exhibitions Limited | Warwick | 2020 |
| 24/7 York Care Agency Ltd | Cheltenham | 2024 |
| 24/7CARING Ltd | Rochdale | 2019 |
| 24/7RESPONSE Care Limited | London | 2019 |
| 240 Consulting Limited | Cardiff | 2015 |
| 240 Finchley Road Limited | Kingston Upon Thames | 2004 |