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About OCS
Our history
Our brands
Our customers
Our suppliers
Our values
Our leadership
Our achievements
Annual Review
Gender Pay Report
Sectors
Aviation
Education
Financial and professional
Government
Healthcare
Manufacturing
Retail
Sports, leisure and entertainment
Utilities
Services
Facilities management
Security
Cleaning
Catering
Passenger assistance and aviation support
Front-of-house and support services
Waste management and recycling
Electrical testing and compliance
Horticulture
Industrial and environmental
Washrooms and hygiene
Pest control
Responsibility
Supporting our communities
Sustainability
Health and safety
News
Careers
Knowledge Centre
Contact us