London and the South East · Based in Richmond
Security, cleaning and operational personnel you can rely on
3L Security Services Limited provides security personnel, cleaning teams, soft facilities management and safety-critical rail personnel for transport, public-sector and commercial environments. Our approach combines workforce screening, practical service planning and direct management accountability.
Accreditations and memberships
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RISQS Verified Supplier – ID 10445
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Cyber Essentials certified
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SafeContractor Approved – BS1272
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REC Corporate Member – No. 00209106
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BSI Member
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Disability Confident Committed
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ICO registered – ZC096201
What we provide
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Security guarding and site protection
SIA-licensed officers for static guarding, construction sites, door supervision and events, mobile patrols and keyholding.
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Corporate security and access control
Front-of-house security, visitor and contractor management, and building access control.
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Commercial and transport cleaning
Office, public-building, school and station-side cleaning, washrooms and litter clearance.
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Rail and transport personnel
Safety-critical station personnel: gateline assistants, customer service assistants and rail replacement bus controllers.
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Soft facilities management
Cleaning, janitorial, front-of-house and reception support, and temporary FM staffing.
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Workforce supply
Screened, licensed staff for security companies, cleaning and FM contractors and main contractors.
Why choose 3L
- RISQS Verified Supplier
- All operatives screened to BS 7858:2019 as standard
- SIA-licensed officers for every security role
- SafeContractor approved and Cyber Essentials certified
- Modern Slavery Compliant, with ethical recruitment and supply chain checks
- Documented health and safety arrangements, with a competent health and safety provider
- Deployment planned for each contract, agreed with you before the first shift
- Direct management accountability: you deal with decision-makers, not a call centre
Sectors
London and the South East.
- Rail and transport – station-side only
- Local authorities and public sector
- Schools and education – Enhanced DBS obtained per contract where required
- Commercial property
- Construction and infrastructure
- Facilities management contractors
- Retail, logistics and industrial
Our position
From our personal experience in security and operations management, we are well set to deliver the contracts we are awarded smoothly and successfully. We have built our company with strong fundamentals and credentials to support and deliver them.
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.