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Gardline, a wholly owned subsidiary of Boskalis, is a multidisciplinary marine survey company, providing a comprehensive range of marine services including geophysical, geotechnical and environmental surveys. Established in 1969 in Great Yarmouth, Gardline has grown to become one of the world's largest and well reputed marine survey companies.


Company Profile

Providing high quality data and expert analysis, we lay the foundations for efficient progress and sustainable growth.

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Offshore Energy


Geophysical Services

To support our clients to make the best decisions on the design and development of offshore installations, Gardline provides vital and detailed information of the seabed and underlying sub strata.


Geotechnical Services

We supply a complete offshore geotechnical solution utilising offshore heave compensated drilling systems with wireline sampling, in situ testing and coring, seabed coring and CPTU services.


Environmental Services

We have been successfully completing environmental surveys worldwide for over 30 years, which has allowed the development of a high level of scientific and technical experience in the full range of marine environments.

Our Activities

At Gardline we deliver bespoke solutions for complex offshore challenges.

What sets us apart


Our expertise

We have 50 years of expertise and knowledge of the industry and an unrivalled understanding of the marine survey world.


Innovative & Flexible Solutions

With our excellent research and development capabilities and an aptitude for innovative solutions, we are leaders in the marine survey industry.


Client focus

We are client oriented and flexible, contributing to increasing efficiency and complexity reduction.

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Corporate Brochure

Never stop exploring


Technical Brochure

Empowering the transforming energy sector

Our Brochures

Please download our brochures to find out more about our services.

Explore Gardline

Looking to transform your career?

If you are interested in finding out more about what it is like to work for Gardline, please visit our careers page.

Let's Talk

Find our key contact details and get in touch with us about your project requirements.

Empowering the Transforming Energy Sector

Gardline is committed to sustainable development, and takes into account health, safety, environmental, and broader socio-economic considerations to meet business needs.


To further improve our safety culture and reach our goal of an incident-free working environment, Gardline has adopted the Boskalis NINA safety programme.

Fleet and Equipment

Gardline has an extensive and versatile fleet of vessels which can be deployed in the optimum configuration for your project.

Policies and Procedures

Gardline adheres to a strict code of safety and management standards. Find out more about our management policies and procedures.