Sectors
Sectors we serve
Security, cleaning and personnel for the environments we are set up to serve in London and the South East.
Choose your sector
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Rail and transport
Safety-critical station personnel, station security and station-side cleaning.
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Local authorities and public sector
Security and cleaning for public buildings, with the screening and documents public buyers expect.
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Schools and education
Cleaning and security around the school day, with Enhanced DBS obtained per contract where required.
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Commercial property
Corporate guarding, access control, front-of-house security, office cleaning and shared-area support.
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Construction and infrastructure
Site guarding, gatehouses, access and delivery management, and welfare-area cleaning.
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Facilities management contractors
Screened staff for your contracts, with mobilisation support and compliance records.
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Retail, logistics and industrial
Guarding, gatehouse and access control, patrols and keyholding, and cleaning for offices and welfare areas.
Venues and events
Licensed door supervisors and event security and stewarding staff. See door supervision and events.
For procurement teams
Contact procurement
Send tender invitations and supplier questionnaires to procurement@3lsecurity.uk. We reply within 2 working days.
Our capability statement, insurance schedules and certificates are available on request. See our procurement resources.