Gardline, a wholly owned subsidiary of Royal Boskalis Westminster N.V., is a multidisciplinary marine survey company, providing a comprehensive range of marine services including geophysical, hydrographic, geotechnical, geochemical, environmental and oceanographic surveys. Established in 1969 in Great Yarmouth, Gardline has grown to become one of the world's largest marine survey companies. Gardline's services are delivered across industry sectors with an interest in the marine environment, including wind, oil and gas operators, EPIC contractors, governments and public bodies, environmental consultants and telecommunication companies. A truly global company, Gardline operates worldwide, with principal offices in Europe, South America, the Middle East and Africa.
Our Mission

Gardline’s mission is to be best in class provider of geophysical, geotechnical and environmental surveys and related marine services to the offshore wind, oil and gas industries.

Gardline has three core services, each with its own operational support functions, such as tendering, engineering, fleet management and crewing. We provide:

Geophysical surveys
Geotechnical surveys
Environmental surveys

Gardline operates globally and has an extensive network of branches around the world.


Offshore oil and gas
Offshore wind
Government and Public
Submarine cable routes

Fleet and Equipment

Contact Information
Gardline, Endeavour House Admiralty Road Great Yarmouth Norfolk, NR30 3NG
Switchboard Number: 
+44 (0)1493 845 600

Consultancy Services and Products

Environmental Surveys Katie Cross
Marine Geophysical and Hydrographic Surveys Owen Hudson and Cliff Whatrup
Offshore Geotechnical Services Marcus Noakes