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About OCS
Our history
Our brands
Our customers
Our suppliers
Our values
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Annual Review
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Sectors
Aviation
Retail
Healthcare
Financial and professional
Sports, leisure and entertainment
Education
Utilities
Government
Manufacturing
Ports
Services
Pandemic response services
Facilities management
Security
Cleaning
Technical services
Catering
Port and Marine Services
Aviation services
Front-of-house and support services
Waste management and recycling
Horticulture
Industrial and environmental
Washrooms and hygiene
Pest control
Responsibility
Supporting our communities
Sustainability
Health and safety
News
Careers
Knowledge Centre
Contact us