The offshore wind energy sector focuses on harnessing wind power from the ocean to generate electricity. In recent years, this industry has seen robust growth, driven by the need for clean renewable energy sources. Various companies contribute, ranging from project developers to technology providers, and they offer a range of services like turbine manufacturing, installation, and maintenance. As countries set ambitious targets for reducing carbon emissions, investments in offshore wind are set to soar. Innovations in floating wind technologies are also expanding opportunities in deeper waters, promising a prosperous future for the industry.

This list features 23 notable offshore wind energy companies operating in different capacities within the market. With headquarters in regions like Denmark, Belgium, and the United States, these firms vary significantly in size, from small enterprises to large corporations with thousands of employees. Founded between 2006 and 2021, their specializations include project development, innovative turbine technology, and offshore operations. Many are actively involved in groundbreaking projects that will shape the renewable energy landscape for years to come.

Continue reading to discover the top offshore wind energy companies.

Top 23 Offshore Wind Energy Companies

1. Copenhagen Offshore Partners

• Website: cop.dk
• Ownership type: Private
• Headquarters: Copenhagen, Denmark
• Employee distribution: Denmark 32%, Taiwan 19%, South Korea 13%, Other 35%
• Founded year: 2015
• Headcount: 201-500
• LinkedIn: copenhagenoffshorepartners

Copenhagen Offshore Partners (COP) is a private renewable energy developer based in Copenhagen, Denmark, specializing in offshore wind project origination, development, and construction. Established in 2015, COP has rapidly expanded its footprint, operating across multiple continents with a workforce of approximately 484 employees. The company is dedicated to accelerating the energy transition, managing a portfolio of over 50 GW of offshore wind projects. Their involvement spans various significant projects, including the Changfang and Xidao projects in Taiwan, Vineyard Wind 1 in the United States, and the Zhong Neng Offshore Wind Farm, which recently completed construction. COP is also focused on pioneering floating offshore wind technologies, aiming to unlock new markets and enhance project efficiency. The company operates 15 offices worldwide, reflecting its global reach and commitment to sustainable energy solutions.

2. Mainstream Renewable Power

• Website: mainstreamrp.com
• Ownership type: Corporate
• Headquarters: Dublin, Dublin, Ireland
• Employee distribution: Chile 26%, Ireland 22%, South Africa 21%, Other 30%
• Latest funding: Other (Debt), $271.0M, April 2025
• Founded year: 2008
• Headcount: 201-500
• LinkedIn: mainstream-renewable-power

Mainstream Renewable Power, based in Dublin, Ireland, is a corporate entity specializing in renewable energy solutions, particularly in wind and solar energy generation. Founded in 2008, the company has established a robust presence across multiple continents, including Europe, Latin America, Africa, and Asia-Pacific. Mainstream has successfully delivered 6.5 GW of assets to financial close-ready status, with a notable focus on offshore wind projects. Their portfolio includes significant developments such as the 1.1 GW floating offshore wind farm in South Korea and a consortium project in the UK. The company has raised over €3 billion in project finance, showcasing its ability to attract investment for large-scale renewable energy initiatives. With a commitment to sustainability and community engagement, Mainstream aims to electrify the world through innovative renewable energy solutions.

3. C-Power

• Website: c-power.be
• Ownership type: Corporate
• Headquarters: Ostend, Flanders, Belgium
• Employee distribution: Belgium 91%, Germany 9%
• Latest funding: December 2011
• Founded year: 2013
• Headcount: 11-50
• LinkedIn: c-power

C-Power, established in 2013 and based in Ostend, Belgium, is an offshore wind energy company dedicated to the development, construction, and operation of wind farms. The company's flagship project is the Thornton Bank wind farm, located 30 km off the Belgian coast. This wind farm consists of 54 turbines with a total capacity of 325 MW, generating around 1,000 GWh of renewable energy each year. This output is equivalent to the annual electricity consumption of approximately 300,000 families, significantly contributing to the reduction of CO2 emissions by about 415,000 tonnes annually compared to traditional gas-fired power plants. C-Power is committed to maximizing the operational efficiency and environmental performance of its wind farm, ensuring safety and sustainability in its operations. The company employs a skilled team that manages all aspects of maintenance and technical solutions, showcasing its proactive approach in the offshore wind sector.

4. Elicio

• Website: elicio.be
• Ownership type: Private
• Headquarters: Ostend, Flanders, Belgium
• Employee distribution: Belgium 77%, France 10%, Serbia 7%, Other 6%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: elicio

Elicio is a Belgian renewable energy company founded in 2014, based in Ostend, Flanders. The company focuses on wind energy production, developing, constructing, and operating both onshore and offshore wind farms across Europe, including Belgium, France, Spain, Serbia, and Scotland. Elicio collaborates with major energy suppliers to provide sustainable energy solutions, playing a vital role in the transition to greener energy sources. With a workforce of approximately 70 employees, Elicio has established a solid presence in the renewable energy sector. The company operates 41 wind farms, with a total installed capacity of 1.5 GW, of which 1.1 GW is offshore. Elicio is committed to innovation and sustainability, continuously seeking to expand its portfolio and enhance its contributions to renewable energy production.

5. E.ON Uk

• Website: eonenergy.com
• Ownership type: Corporate
• Headquarters: Coventry, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 96%, Other 4%
• Latest funding: $15.3B, July 2002
• Founded year: 1989
• Headcount: 10001+
• LinkedIn: e-on-uk

E.ON UK, based in Coventry, England, is a corporate entity that provides electricity and gas services to both residential and business customers. Founded in 1989, it operates as a subsidiary of E.ON Germany. The company is heavily invested in renewable energy solutions and energy management, aiming to help customers meet their energy needs sustainably. E.ON UK plays a crucial role in the UK's energy market, particularly in the development of large-scale renewable projects, including offshore wind farms. Their commitment to renewable energy is evident in their ongoing projects and initiatives aimed at reducing carbon emissions and promoting sustainable energy practices. With a workforce of over 10,000 employees, E.ON UK is positioned as a significant contributor to the energy transition in the UK.

6. BlueFloat Energy

• Website: bluefloat.com
• Ownership type: Private
• Headquarters: Madrid, Madrid, Spain
• Employee distribution: Spain 63%, United Kingdom (UK) 11%, France 6%, Other 20%
• Founded year: 2020
• Headcount: 51-200
• LinkedIn: bluefloat-energy

BlueFloat Energy, based in Madrid, Spain, is a renewable energy company that focuses on the development of offshore wind energy projects. Founded in 2020, the company has quickly established itself in the industry by specializing in both floating and bottom-fixed wind technologies. BlueFloat Energy is actively involved in a global project pipeline that includes 32 GW of planned capacity across ten countries. Their approach emphasizes collaboration with local communities and stakeholders to ensure that projects are implemented sustainably and ethically. The company has formed strategic partnerships with notable entities, such as SENER and Falck Renewables, to enhance their project execution capabilities. BlueFloat Energy is also pioneering floating offshore wind in regions like Spain and Italy, demonstrating their commitment to expanding the offshore wind market. Their focus on stakeholder engagement and local partnerships further underscores their dedication to responsible energy development.

7. Global Wind Service

• Website: globalwindservice.com
• Ownership type: Corporate
• Headquarters: Fredericia, Fredericia, Denmark
• Employee distribution: Denmark 24%, Poland 14%, United Kingdom (UK) 9%, Other 52%
• Latest funding: May 2018
• Founded year: 2008
• Headcount: 1001-5000
• LinkedIn: global-wind-service

Global Wind Service, based in Fredericia, Denmark, is a corporate entity established in 2008 that specializes in wind turbine services. The company focuses on installation, maintenance, and inspection services for both onshore and offshore wind energy projects. With a workforce of over 1,500 employees, Global Wind Service operates in more than 40 countries and has successfully completed approximately 2,000 projects. Their service offerings include pre-assembly, blade maintenance, repowering, and high voltage services, catering to the needs of the renewable energy sector. The company is committed to health, safety, environment, and quality management, aiming for zero harm in their operations. They also emphasize training through their Global Wind Service Academy, ensuring that their technicians are well-prepared for the challenges of the industry.

8. Vena Energy

• Website: venaenergy.com
• Ownership type: Private
• Headquarters: Singapore
• Employee distribution: Japan 22%, India 19%, Philippines 18%, Other 41%
• Latest funding: Other (Debt), $580.2M, February 2024
• Founded year: 2012
• Headcount: 1001-5000
• LinkedIn: vena-energy

Vena Energy is a renewable energy company based in Singapore, established in 2012. With a workforce of over 1,000 employees, the company is dedicated to accelerating the energy transition in the Asia-Pacific region. Vena Energy specializes in onshore and offshore wind, solar energy, and energy storage solutions. Their portfolio includes a substantial commitment to offshore wind, with over 19.2 GW of projects currently in development. This positions them as a significant player in the renewable energy sector, catering to both governmental and business clients seeking sustainable energy solutions. In February 2024, Vena Energy secured a funding amount of approximately $580 million, indicating strong investor confidence in their growth and operational capabilities. The company operates across multiple countries, including Japan, India, the Philippines, Taiwan, and Australia, reflecting their extensive geographic reach and operational expertise.

9. Vineyard Wind

• Website: vineyardwind.com
• Ownership type: Corporate
• Headquarters: New Bedford, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 98%, Other 2%
• Latest funding: May 2017
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: vineyard-wind

Vineyard Wind is a renewable energy company based in New Bedford, Massachusetts, focused on offshore wind energy generation. Founded in 2009, the company is currently developing the Vineyard Wind 1 project, which aims to provide clean energy to over 400,000 homes and businesses in Massachusetts. This project will consist of 62 General Electric Haliade-X turbines, each capable of generating 13 megawatts of electricity, totaling 800 megawatts of power. Vineyard Wind is committed to engaging with local communities and stakeholders to ensure environmental protection and economic benefits. The company has established partnerships with Copenhagen Infrastructure Partners and Avangrid Renewables, which bolster its capabilities in the offshore wind sector. Vineyard Wind is also dedicated to minimizing impacts on marine habitats and the fishing industry, demonstrating a proactive approach to environmental stewardship. The project is expected to significantly reduce carbon emissions, making it a key player in the transition to renewable energy.

10. Parkwind

• Website: parkwind.eu
• Ownership type: Corporate
• Headquarters: Leuven, Flanders, Belgium
• Employee distribution: Belgium 90%, Australia 3%, Germany 3%, Other 4%
• Latest funding: $1.7B, March 2023
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: parkwind

Parkwind N.V. is a Belgian renewable energy company founded in 2012, specializing in offshore wind energy. The firm develops, finances, and operates wind farms, aiming to provide sustainable energy solutions to communities and governments. With a strong commitment to innovation and research, Parkwind is dedicated to accelerating the transition to green energy on a global scale. The company has successfully established a portfolio of operational wind farms, including Belwind, Northwind, Nobelwind, and Northwester 2, which collectively power hundreds of thousands of homes. As of 2023, Parkwind operates under JERA Nex, the renewable energy subsidiary of JERA Inc., which significantly boosts its operational capacity and project pipeline. Parkwind is actively involved in R&D initiatives, focusing on advancements in wind farm technology and exploring new energy solutions such as hydrogen. Their strategic approach and commitment to local talent further enhance their impact in the offshore wind sector.

11. Principle Power

• Website: principlepower.com
• Ownership type: Corporate
• Headquarters: Emeryville, California, United States (USA)
• Employee distribution: Portugal 44%, France 32%, United States (USA) 20%, Other 4%
• Latest funding: $22.0M, May 2020
• Founded year: 2007
• Headcount: 51-200
• LinkedIn: principle-power

Principle Power, established in 2007 and headquartered in Emeryville, California, is an engineering services provider focused on floating offshore wind technology. The company specializes in offering a full range of services, including project development support, design, execution, and maintenance for renewable energy projects. Principle Power's WindFloat® technology allows for the deployment of wind turbines in deep waters, overcoming traditional limitations associated with fixed foundations. With a workforce of around 110 employees, the company operates globally, with significant employee presence in Portugal and France. Principle Power has successfully completed projects that collectively generate 75 MW of capacity, with additional projects in advanced development stages. The company has also secured funding of $22 million in 2020, which underscores its ongoing commitment to innovation and growth in the offshore wind sector.

12. Simply Blue Group

• Website: simplybluegroup.com
• Ownership type: Corporate
• Headquarters: Cork, Cork, Ireland
• Employee distribution: Ireland 56%, Spain 14%, United Kingdom (UK) 11%, Other 20%
• Latest funding: June 2024
• Founded year: 2011
• Headcount: 51-200
• LinkedIn: simply-blue-energy-ltd

Simply Blue Group, based in Cork, Ireland, is a corporate entity founded in 2011 that specializes in renewable energy development. The company focuses on creating sustainable energy solutions through offshore wind, sustainable fuels, aquaculture, and seaweed farming. With a workforce of approximately 66 employees, Simply Blue Group operates globally, emphasizing projects that coexist with marine conservation efforts. Their offshore wind initiatives are particularly noteworthy, as they are involved in developing wind farms that aim to significantly contribute to renewable energy generation. The company is also committed to fostering economic opportunities for coastal communities while addressing the biodiversity crisis. Their recent projects include the Salamander wind farm and the development of a sustainable aviation fuel hub in Nova Scotia, showcasing their strategic expansion and commitment to clean energy.

13. Windlift

• Website: windlift.com
• Ownership type: Venture Capital
• Headquarters: Durham, North Carolina, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Pre-seed, October 2023
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: windlift

Windlift is a renewable energy company based in Durham, North Carolina, specializing in offshore wind technology. Founded in 2019, the company is dedicated to developing autonomous flying prototypes that harness wind energy. Their innovative solutions are aimed at energy companies and government organizations seeking sustainable energy alternatives. Windlift's operations are bolstered by strategic partnerships with the Department of Defense and the Department of Energy, which enhance their technological capabilities. The company is currently preparing for real-world demonstrations of their prototypes, scheduled for late 2024, showcasing their commitment to advancing offshore wind energy solutions.

14. Otary RS NV

• Website: otary.be
• Ownership type: Private
• Headquarters: Ostend, Flanders, Belgium
• Employee distribution: Belgium 100%
• Founded year: 2011
• Headcount: 11-50
• LinkedIn: otary-nv

Otary RS NV, based in Ostend, Belgium, is a private renewable energy company founded in 2011. The firm specializes in offshore wind farms, engaging in the entire lifecycle of wind energy projects—from development and financing to construction and management. Otary has played a pivotal role in the Belgian offshore wind sector, notably through its projects like the Rentel wind farm, which became operational in late 2018, and the SeaMade wind farm, which has been generating energy since 2020. These projects collectively contribute to powering hundreds of thousands of homes in Belgium. Otary prides itself on its collaborative approach, working closely with various stakeholders to ensure the success of its projects. The company is also involved in innovative practices aimed at enhancing efficiency and sustainability in offshore wind energy production.

15. Simply Blue Energy Ltd

• Website: simplyblueenergy.com
• Ownership type: Private
• Headquarters: Cork, Cork, Ireland
• Latest funding: $28.5M, November 2022
• Founded year: 2011
• Headcount: 11-50
• LinkedIn: simply-blue-energy-ltd

Simply Blue Energy Ltd, based in Cork, Ireland, is a private renewable energy developer founded in 2011. The company focuses on sustainable energy solutions, particularly in offshore wind energy, sustainable fuels, aquaculture, and seaweed farming. Simply Blue is dedicated to helping businesses transition to clean energy while promoting biodiversity and addressing climate change. They are involved in various offshore wind projects, including the Salamander wind farm, which recently reached a significant milestone with onshore consent submissions. The company operates in several regions, including Ireland, the UK, Spain, and Canada, and has received funding of approximately €28.5 million in November 2022, indicating their active pursuit of growth and project development in the renewable energy sector.

16. Triton-Holding B.V.

• Website: seawindtechnology.com
• Ownership type: Private
• Headquarters: Amsterdam, North Holland, Netherlands
• Employee distribution: Netherlands 58%, France 15%, Egypt 9%, Other 18%
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: seawind-technology

Triton-Holding B.V., known as Seawind Ocean Technology, is a renewable energy developer based in Amsterdam, Netherlands. Founded in 2014, the company specializes in offshore wind technologies, particularly in the development of innovative floating and bottom-fixed wind turbines. Seawind aims to support sustainable energy production by providing advanced solutions that lower the costs associated with green energy generation. Their patented turbine designs, inspired by research from NASA, focus on efficiency and durability, with a commitment to reducing carbon emissions. Seawind is actively involved in various projects across Europe, including the Del Toro offshore wind farms in Italy and the HyMed project, which aims to produce green hydrogen. The company operates with a small team of 11-50 employees and collaborates with tier-one suppliers and partners to enhance their project development capabilities.

17. Norther

• Website: norther.be
• Ownership type: Corporate
• Headquarters: Ostend, Flanders, Belgium
• Employee distribution: Belgium 100%
• Latest funding: $990.0M, December 2016
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: norther

Norther NV is a renewable energy company based in Ostend, Belgium, specializing in offshore wind energy generation. Founded in 2009, the company operates the Norther Offshore Wind Farm, which has a maximum capacity of 370 MW. This wind farm, consisting of 44 turbines, is strategically located in the Belgian North Sea, approximately 23 kilometers from the coast. It plays a vital role in supplying green electricity to nearly 400,000 households in Belgium, aligning with the country's renewable energy targets. Norther is co-owned by Elicio, a Belgian renewable energy producer, and Eneco, a major player in the renewable energy market in the Netherlands and Belgium. The company has received substantial funding, amounting to €990 million, which underscores its capacity for growth and development in the offshore wind sector. Norther's focus on sustainable energy solutions and its operational wind farm position it as a relevant entity in the offshore wind energy industry.

18. Mayflower Wind

• Website: mayflowerwind.com
• Ownership type: Private
• Headquarters: Boston, Massachusetts, United States (USA)
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: mayflower-wind

Mayflower Wind, operating under the name SouthCoast Wind, is an energy company based in Boston, Massachusetts, dedicated to the development of offshore wind energy projects in New England. Established in 2019, the company aims to generate over 2,400 megawatts of clean energy, which is projected to power more than one million homes. Their flagship project, SouthCoast Wind 1, has been awarded contracts to deliver 1,287 megawatts of energy to Massachusetts and Rhode Island. The company emphasizes community development and environmental stewardship, engaging with local stakeholders to ensure that their projects align with community needs and climate goals. They are also committed to creating job opportunities and fostering a robust supply chain in the renewable energy sector. Backed by OW Ocean Winds, which has a strong international presence in offshore wind development, Mayflower Wind is positioned to contribute significantly to the region's clean energy future.

19. Inch Cape Offshore Limited

• Website: inchcapewind.com
• Ownership type: Private
• Headquarters: Edinburgh, Scotland, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 81%, China 15%, Ireland 2%, Other 2%
• Founded year: 2020
• Headcount: 51-200
• LinkedIn: inch-cape-offshore-limited

Inch Cape Offshore Limited, based in Edinburgh, Scotland, is a private renewable energy company focused on offshore wind energy generation. Established in 2020, the company is currently developing the Inch Cape Offshore Wind Farm, which will feature up to 72 turbines located 15 kilometers off the Angus coast in the North Sea. With a projected capacity of 1.1 gigawatts, this project aims to significantly contribute to the UK's renewable energy goals. The company has already invested nearly £300 million with UK companies and plans to spend an additional £700 million, creating jobs and supporting local economies. Inch Cape is also committed to sustainability, aiming to reduce carbon emissions by 2.5 million tonnes annually once operational. The project is progressing towards full construction, with key milestones already achieved, including the completion of onshore enabling works and ongoing construction of the offshore substation. The company operates primarily in the North Sea and has established partnerships with energy providers and organizations seeking sustainable energy solutions.

20. Saitec Offshore Technologies

• Website: saitec-offshore.com
• Ownership type: Venture Capital
• Headquarters: Leioa, Basque Country, Spain
• Employee distribution: Spain 93%, China 7%
• Latest funding: January 2018
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: saitec-offshore-technologies

Saitec Offshore Technologies, based in Leioa, Basque Country, Spain, is a venture capital-backed company that specializes in offshore wind energy solutions. Established in 2016, the firm focuses on developing innovative concrete floating foundations and SATH (Swinging Around Twin Hull) technology, which is designed to operate efficiently in both shallow and deep waters. Saitec is involved in the industrial production of floating wind platforms and offers consultancy services tailored to the renewable energy sector. The company has made strides in advancing its technology, as evidenced by the recent certification of its DemoSATH floating wind project by Bureau Veritas, which validates its engineering and operational capabilities. With a strong emphasis on sustainability and a commitment to reducing the carbon footprint of offshore wind energy, Saitec Offshore Technologies is positioned to play a significant role in the future of renewable energy generation.

21. Floating Power Plant

• Website: floatingpowerplant.com
• Ownership type: Private
• Headquarters: Bandholm, Denmark
• Employee distribution: Denmark 88%, Spain 6%, United Kingdom (UK) 6%
• Latest funding: July 2023
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: floating-power-plant-a-s

Floating Power Plant A/S, based in Bandholm, Denmark, is a private clean-tech company founded in 2006. The company specializes in renewable energy solutions, particularly focusing on offshore wind and wave energy. They have developed a unique patented technology that allows for the harvesting of energy from both wind and waves through their innovative floating platforms. This technology has been rigorously tested and is the first of its kind to be successfully deployed offshore, providing power to the grid. Floating Power Plant aims to address the energy needs of off-grid and weak-grid customers, offering modular designs that enhance operational efficiency. The company has secured over €25 million in funding to date, which supports their ongoing projects and technological advancements. Their commitment to integrating hydrogen production and energy storage systems into their platforms positions them as a forward-thinking player in the renewable energy sector.

22. Vineyard Offshore

• Website: vineyardoffshore.com
• Ownership type: Private
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2021
• Headcount: 51-200
• LinkedIn: vineyard-offshore

Vineyard Offshore is a clean energy company based in Boston, Massachusetts, specializing in the development of offshore wind energy projects. Established in 2021, the company is involved in several significant initiatives, including Vineyard Wind 1, the first commercial-scale offshore wind farm in the United States, which is currently under construction. This project aims to generate enough renewable energy to power over 400,000 homes while significantly reducing carbon emissions. Vineyard Offshore is also developing additional projects such as Excelsior Wind in New York and a floating wind project off the coast of California. The company is dedicated to fostering local economic growth and job creation, actively engaging with communities, and ensuring environmental stewardship throughout its operations. With a focus on building a skilled workforce and supporting local businesses, Vineyard Offshore is positioned as a key player in the offshore wind energy sector.

23. Attentive Energy

• Website: attentiveenergy.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: attentive-energy

Attentive Energy is a renewable energy company based in New York, specializing in offshore wind energy generation. Established in 2019, the company is dedicated to developing projects that not only provide clean energy but also deliver economic advantages to local communities in New York and New Jersey. Their approach emphasizes community engagement, ensuring that local stakeholders are involved in the development process. Attentive Energy is currently working on the Attentive Energy One and Attentive Energy Two projects, which aim to harness the wind resources in the New York Bight. These projects are designed to power approximately 1.4 million homes with a total capacity of 3 GW. The company actively collaborates with various community groups, including fishermen and local suppliers, to create a sustainable energy ecosystem. Their commitment to transparency and accountability in stakeholder engagement further underscores their role in the offshore wind industry.

Offshore Wind Energy Insights: Key Companies

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