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An extraordinary tale of vision, commitment and sheer hard work, the OCS story starts way back in 1900 with the formation of The New Century Window and General Cleaning Company, a small independent window cleaning enterprise. Since then, we have grown from one man with a ladder, pail and pushcart to an international business providing a range of essential services in facilities owned by our clients, with 87,000 colleagues worldwide.

Exceeding expectations, wherever you are in the world

Our global reach