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With roughly 250 million gross tons or some 20% of the world’s merchant fleet on register, ClassNK is one of the world’s largest classification societies in terms of gross tonnage under class.

Founded in 1899, ClassNK is a ship classification society dedicated to safer, cleaner seas. ClassNK offers diverse technical services including the survey and classification of ships and marine structures based on technical independently developed rules, statutory surveys performed on behalf of more than 110 flag States, management system certifications based on ISO and other international standards, as well as other services to help our clients safeguard ships, their crews, and their cargo, while protecting the marine environment.

ClassNK is also a leader in maritime related research and development. Devoting significant resources and expertise to R&D, ClassNK works in close partnership with the industry to develop a broad array of new cutting-edge technological solutions aimed at securing a safer and greener future for the maritime community as a whole.

ClassNK is a global organization committed to providing the highest quality services and supporting its clients 24/7 through a network of over 120 exclusive surveyor offices across the world.

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