Leading Global Market Research and Intelligence for Offshore Renewable Energy

Through on-demand market intelligence powered by the 4C Offshore platform, TGS offers comprehensive datasets, insight and support for the complete lifecycle of global offshore wind projects and cable consultancy services. Over recent decades, we’ve built unique product offerings and an unrivaled database, serving offshore energy developers, supply chains, investors and governments worldwide.

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Empowering Offshore Wind Intelligence

We contribute to the global energy transition as a leading provider of strategic market intelligence and consulting services to the flourishing offshore renewable energy and subsea power cables sectors. Together, we create value for subscribers by providing them with the market knowledge and insights needed for tactical and strategic decision-making.


Offshore Wind Projects


Countries Covered


Data Intelligence Subscription


Years of Providing Reliable Data

Offshore Wind Intelligence Products

Access an unrivaled breadth and depth of data from across the offshore wind industry and beyond. Stay up to date with trusted market intelligence delivered to you when and how you need it. Make informed, data-driven decisions.

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Subsea Cable & Pipeline

Having an experienced consultant is vital for your project, especially to help mitigate issues raised by design, installation and operation. From project feasibility to investment cases, route engineering, installation, operations or maintenance, our expert marine consultants specialize in submarine cable and pipeline.

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Market Consultancy

We provide highly detailed, accurate, and expert analysis of the offshore wind industry. With fact-based answers to complex questions and full access to the most comprehensive database, our offshore consultancy services will support the growth of your business by allowing you to make informed investment decisions.

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The 4C Offshore Intelligence Web App

The 4C Offshore Intelligence Web App

Access the information you need in the detail and format that you need via our web app. Content includes extensive statistics and exclusive webinars, charts and interactive maps.

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Offshore Market Intelligence Services

Sign up now to reveal the full potential of 4C Offshore market intelligence, including enterprise and premium membership options and a diverse range of specialized intelligence modules.

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Global Offshore Wind Farms

Global Offshore Wind Farms

Extensive insights into offshore wind farm projects across the globe.

Offshore Wind Turbines Market Intelligence Services

Offshore Wind Turbines

Detailed information on over 289 offshore wind turbine models, dimensions and wind speeds.

Offshore Transmission & Cables

Offshore Transmission & Cables

Access subsea cables intelligence for offshore wind, interconnector projects and transmission.

Offshore Wind Logistics

Offshore Wind Logistics

Discover unique insights about global vessel supply and demand, project development and ports.

Construction and Heavy Maintenance

Construction and Heavy Maintenance

Analysis on component trends for turbines, installation vessels, specifications and supply & demand.

Mapping & GIS

Mapping & GIS

Access information and geospatial data on global offshore wind farm boundaries.

What Our Customers Say

"It's the most comprehensive and reliable source of industry information available"


"The 4C database is an incredibly useful tool to help understand the industry, the trends and where to give future focus. The volume of data is impressive and gives a comprehensive view on the entire market."

Wärtsilä Deutschland GmbH

"Every day I check the 4C news mail and get many insights and information. I am very satisfied with the contents! And on a scale of 1-10 how likely would I be to recommend 4C Offshore, it would be 10 as good news and data source."

Kyuden International Corporation

Latest News

Germany accelerates offshore wind energy expansion
15 July 2024
Filed under: General, Turbines, Windfarms

Germany's offshore wind energy sector is witnessing significant growth, with 377 MW added in the first half of 2024, according to new figures from Deutsche WindGuard.

Ossian offshore wind farm submits Section 36 Consent Application
15 July 2024
Filed under: Corporate, General, Windfarms

The developers of the Ossian offshore wind farm, located south-east of the Aberdeenshire coast, have officially submitted a Section 36 Consent Application for the construction and operation of their new generating station.

NKT partners with SSEN Transmission for Scottish HVDC projects
15 July 2024
Filed under: Cables, General, Interconnectors

NKT has confirmed its role as the partner for Scottish transmission system operator SSEN Transmission, securing production and offshore installation capacity for two high-voltage direct current (HVDC) transmission links.