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

"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

"The depth of offshore wind farm information in the database is unmatched."

UK Foundations Ltd.

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


Latest News

Hull Siemens Gamesa workers ballot for pay strikes
12 July 2024
Filed under: General, Windfarms

Approximately 300 workers at the Siemens Gamesa wind turbine factory in Hull are being balloted for strike action over a pay dispute, announced Unite, the UK's leading union.

WindSpider secures NOK 17.5 million grant for advanced wind turbine crane development
12 July 2024
Filed under: CHMI, Equipment, General, Turbines, Windfarms

WindSpider has been awarded a NOK 17.5 million grant from Innovation Norway to advance their aluminium lifting solution, control system, and simulator for wind turbine maintenance.

Arendals Fossekompani sells Vergia to Swiss Life Asset Managers
12 July 2024
Filed under: Corporate, General, Windfarms

Arendals Fossekompani has divested its portfolio company, Vergia, to Swiss Life Asset Managers. Financial details of the transaction were not disclosed.