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Building for the future from a proven track record.

Coldharbour Marine Limited, based in the UK, can trace its origins back more than 35 years and our products and designs have been used extensively in both the marine and offshore sectors. We provide practical, innovative solutions to the technical problems facing our customers.

Engineering Excellence

Our focus is on engineering excellence combined with the intelligent application of robust, advanced technologies into extreme environments. We make it our business to understand our customers' requirements and to provide practical solutions to the technical problems they face. We are continually developing and enhancing our products in response to changing operational and legislative pressures, aiming to safeguard our customers by designing and developing solutions which can accommodate future changes to international regulations without the need for re-design or re-engineering, thereby providing our customers with the benefits of our forward thinking by future proofing our technologies wherever possible.


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Ballast Water Treatment Systems

Designed and optimised for large Oil Tankers,  Bulkers, LNG Vessels and Ore Carriers, the GLD™ BWTS uses a combination of diffused inert gas and ultrasonic shock-waves to treat the ballast water in the tank and during the ballast voyage.

Inert Gas Generator Systems

Sea Guardian™ Inert Gas Generator incorporates a number of innovative, patented elements aimed at achieving cleaner more stable operation and simaltaneously reducing maintenance costs and downtime.







Coldharbour Marine Ltd

Foot Anstey LLP

Senate Court,

Southernhay Gardens,


England, EX1 1NT

e: sales@coldharbourmarine.com

Registered in England and Wales

with company number 07090799

Coldharbour Marine Ltd is a wholly owned subsidiary of Coldharbour Technology Ltd.

Foot Anstey LLP, Senate Court, Southernhay Gardens,

Exeter, England, EX1 1NT


Registered in England and Wales

with company number 10636773