Top 10: Wind Power Companies
By Jasmin Jessen
July 09, 2025
Top 10: Wind Power Companies
The top wind power companies supporting and developing renewable energy projects globally include Siemens, NextEra Energy, GE Vernova and Enel
Wind power has grown substantially and is hoped to provide a significant portion of the world’s energy by 2050.
This clean source produces electricity without emitting greenhouse gases or pollutants and harnesses natural resources that will not run out.
To achieve global decarbonisation goals in time, the International Energy Agency says annual wind capacity additions need to increase from around 115 GW in 2023 to 340 GW in 2030.
Energy Digital has ranked 10 of the top wind power companies supporting wind development around the world.
10. Vestas CEO: Henrik Andersen
Headquarters: Aarhus, Denmark
Founded: 1945
Market cap: US$17.26bn
Vestas originated in 1898 as a blacksmith shop in Denmark and now covers all aspects of wind turbines, from manufacturing and sales to installation and servicing.
It has installed more than 189 GW of wind power capacity, including more than 10 GW offshore.
In Poland, Vestas has signed a deal for a blades factory with LM Wind Power, set to strengthen the company’s European manufacturing footprint.
Vestas Chief Technology and Operations Officer, Anders Nielsen, says: “Europe needs secure, affordable and sustainable energy more than ever, and we’re pleased to expand our European manufacturing footprint to support wind energy’s growing role in Europe’s energy system.”
9. ØrstedCEO: Rasmus Errboe
Headquarters: Fredericia, Denmark
Founded: 2006
Market cap: US$18.34bn
Rasmus Errboe, CEO at Ørsted - Credit: Ørsted
Ørsted is the world’s leading offshore wind developer with installed capacity of nearly 18 GW around the world.
The company took over full operational control of the Hornsea 2 wind farm in the UK and now fully manages its entire UK fleet with a capacity of 5.6 GW.
Darren Ramshaw, Head of Generation for UK East at Ørsted, says: “We couldn’t have got this far without the hundreds of dedicated people using their expertise through the whole process, from licenses, consents, building and development, all the way to the technicians who are servicing day-to-day.
“Hornsea 2 shows our business's collaborative success, leveraging expertise from across Ørsted to ensure safe and reliable generation on the world’s largest wind farm.”
8. RWECEO: Markus Krebber
Headquarters: Essen, Germany
Founded: 1898
Market cap: US$30.98bn
RWE's subsidiary RWE Offshore Wind operates 19 wind farms - Credit: RWE
RWE is one of the world’s largest owners and operators of both offshore and onshore wind farms.
Its construction projects include the 1.4 GW Sofia wind farm in the UK, 1.1 GW Thor offshore wind farm in Denmark and 1.6 GW Nordseecluster near the German island of Juist.
The Thor wind farm is expected to be completed by the end of 2025.
Pernille Asgaard Haaning, CEO of RWE Renewables Denmark, says: “The operations building for Thor will be the heart of our daily work and will create lasting local jobs in Thorsminde for many years to come.
“We are happy to be part of the local community and proud to be able to contribute to making Thorsminde a central hub for Denmark's green future.”
7. AdaniChairman: Gautam Adani
Headquarters: Ahmedabad, India
Founded: 1988
Market cap: US$34.75bn
Adani is one of the largest renewable energy companies in India through its subsidiaries Adani Green Energy and Adani Wind.
Adani Green Energy and has more than 15 GW of installed renewable energy capacity, nearly 2 GW of which is wind.
Adani Wind manufactures turbines in an integrated facility in Mundra, Gujarat.
Ashish Khanna, CEO at Adani Green Energy, says: “Surpassing the 15,000 MW milestone is a moment of immense pride.
“We aim to accelerate even faster from 15,000 MW to 50,000 MW by 2030, remaining steadfast in our mission to power India and the world with sustainable energy solutions.”
6. ACWA PowerCEO: Marco Arcelli
Headquarters: Riyadh, Saudi Arabia
Founded: 2004
Market cap: US$51.41bn
Marco Arcelli, CEO of ACWA Power - Credit: ACWA Power
Headquartered in Saudi Arabia, ACWA Power is a developer, operator and investor of power generation plants including wind.
The company is developing Egypt’s largest wind farm with 2 GW of capacity and has signed a power purchase agreement with Egyptian Electricity Transmission Company (EETC).
“Our agreement with EETC reinforces the strong and enduring partnership between ACWA Power and the Egyptian government, driving sustainable development with vigour over the past decade,” says Mohammad Abunayyan, Founder and Chairman of the Board of Directors of ACWA Power.
“Additionally, it is a key step in expediting the country’s highly inspiring and ambitious energy transition, with this project we confirm ACWA Power as the leading private investor in power in Africa.”
5. Enel CEO: Flavio Cattaneo
Headquarters: Rome, Italy
Founded: 1962
Market cap: US$96.18bn
Enel Green Power was created in 2008 - Credit: Enel Green Power
Enel’s subsidiary Enel Green Power manages more than 66 GW of renewable energy capacity around the world.
Nearly 20 GW of this is wind power, with wind farms spread across five continents.
Enel’s Wind Technical Service and Innovation Wind Departments has worked with the Electric Power Research Institute to use advanced modelling and algorithms to improve wind turbine maintenance.
"The collaborative efforts between Enel and EPRI have not only improved the reliability of wind turbine generators, but they have also paved the way for future innovations in renewable energy technology," says Jonatan Núñez, Global Head of Predictive & Data Driven Maintenance at Enel Green Power.
4. IberdrolaCEO: Pedro Azagra
Headquarters: Bilbao, Spain
Founded: 1992
Market cap: US$117.43bn
Iberdrola has more than 22 GW of wind energy capacity installed globally, with more than 20 GW from onshore wind farms.
It operates more than 15,000 wind turbines across hundreds of wind farms.
ScottishPower, a subsidiary of Iberdrola, is responsible for the East Anglia THREE offshore wind farm which has already broken records in the industry.
Charlie Jordan, ScottishPower Renewables CEO, says: “The installation of our first East Anglia THREE foundation is a real wow moment for both ScottishPower and Iberdrola.
“It represents a mammoth feat of engineering, skill and a huge amount of work.”
3. GE VernovaCEO: Scott Strazik
Headquarters: Massachusetts, US
Founded: 2024
Market cap: US$144.66bn
Scott Strazik, CEO at GE Vernova - Credit: GE Vernova
GE Vernova has installed around 120 GW of wind capacity across a fleet of about 57,000 turbines operating in more than 51 countries.
The company focuses on technological innovation, including component standardisation and the development of more powerful and efficient turbines.
Its efforts include a 6.1 MW turbine with a 158 metre rotor designed for medium to low wind conditions
The company has signed an agreement with Forestalia to provide these turbines for a project in Spain, where GE Vernova already accounts for 5.9 GW of the country’s wind capacity.
Gilan Sabatier, GE Vernova’s Chief Commercial Officer of international Onshore Wind, says: “Our workhorse turbines are well suited to wind conditions in Spain and across Europe, as customers continue to look to wind power to meet energy demand, bolster energy security and support renewable energy goals.”
2. NextEra EnergyCEO: John Ketchum
Headquarters: Florida, US
Founded: 1925
Market cap: US$149.17bn
NextEra Energy Resources operates 119 wind farms - Credit: NextEra Energy Resources
NextEra Energy operates 119 wind projects across the United States and Canada, making it the largest owner and operator of wind farms in North America.
It is working to develop co-located wind, solar and battery storage at sites like Wheatridge Renewable Energy Facilities in Oregon where 120 wind turbines sit with solar panels and battery storage.
The company is not just focussed on building new wind projects, but also repowering existing wind assets to extend their life and produce renewable energy.
In NextEra’s 2024 Sustainability Report, President and CEO John Ketchum says: “Renewables are not only the lowest cost and fastest generation technologies to deploy, but also are clean and face few regulatory constraints compared to current alternatives.
“Renewables do not require fuel other than sunshine and wind – making them energy independent, not subject to fuel price volatility and less impacted by inflation.
“We are pushing forward the frontiers of knowledge in all parts of the power generation value chain.”
1. SiemensCEO: Roland Busch
Headquarters: Munich, Germany
Founded: 1847
Market cap: US$206.72bn
Siemens Energy is a wind leader, installing more than 100 GW of renewable energy capacity since 1998.
“The road ahead for the entire wind industry is long,” says Vinod Philip, Member of the Executive Board of Siemens Energy and Executive Vice President Wind Power.
“But we can – and we will – walk it to create a more sustainable future.”
Siemens Gamesa, part of Siemens Energy, manufactures a broad portfolio of turbines tailored to various wind classes and site conditions.
The company established the world’s first offshore wind power plant in Denmark in 1991 and remains a leader in wind energy globally.
In 2024, Siemens Gamesa was awarded a contract worth more than US$1.3bn to supply offshore turbines for ScottishPower Renewables’ East Anglia TWO offshore wind farm, set to be manufactured in the UK.
On the announcement, UK Prime Minister Keir Starmer said: “Our mission to make Britain a clean energy superpower will fire up our industrial heartlands and break down barriers to growth in our hard-working towns and cities.
“By acting decisively and early, the UK has an opportunity to lead the world in the industries of the future – working in partnership with businesses like ScottishPower and Siemens Energy – creating real energy security, cutting energy bills and building jobs and supply chains in the UK.” |
