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View so-strom's top competitors like Austrian Energy Agency, Envision Energy, and Fronius International.

Envision Energy
Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions. Encompassing three major business sectors - Smart Wind Turbines, Energy Storage, and Green Hydrogen Solutions, Envision Energy collaboratively constructs comprehensive solutions for energy transformation. It also manages Envision-Hongshan Carbon-Neutral Fund and owns Envision Racing Formula E team, who conquered the Formula E Teams' Championship in 2023. With its contribution to the global green energy transition, Envision Energy is listed as a “Green Giant” in TIME “2024Time 100 Most Influential Companies” list. Envision Energy has also received several accolades for its sustainability performance, including the EcoVadis Gold Medal and the CDP “A-List”. It was also recognized in Fortune's “Change the World” list and ranked among the top 10 smartest companies by the MIT Technology Review. Today, Envision Energy leverages its global network of R&D and engineering centers across China, the United States, UK, France, Germany, Denmark, etc. to continuously lead global green technology development. Envision Energy joined the Science Based Targets initiative (SBTi) and committed to achieving the "Business Ambition for 1.5°C" in 2021. By the end of 2022, it had achieved carbon neutrality in its global operations, with a goal of reaching net-zero emissions by 2040.
Shanghai, CN
Private
$461.7M Revenue
http://www.envision-group.com
2.9K Employees
Fronius International
We are Fronius, an Austrian company specializing in welding technology, photovoltaics, and battery charging technology. Together with our partners, customers and more than 6,100 employees, we work on inspired solutions, for a better today and a sustainable tomorrow. Whether it's efficient solar power, smart ways to charge batteries or the perfect welding seam, our products last for generations. Our inverters, welding systems and battery charging systems are in demand worldwide, which is why we are now represented in more than 60 countries on five continents. This enables us to provide optimum support and service to our customers around the globe. Our common goal: to convert and control energy efficiently and intelligently. We are proud of our very special corporate culture: our Fronius spirit, our sense of unity, is always present. Whether as an employee in our production, development or in our office areas, whether in daily business or at events like the big summer party or our end-of-year celebration: We are all part of the community. We are Fronius. 𝗛𝗶𝘀𝘁𝗼𝗿𝘆 From a one-man business to a global player: it all began in the market town of Pettenbach, where company founder Günter Fronius earned a living as a repair and maintenance man in 1945. Then came the idea that got the ball rolling: the trained electrical engineer developed a battery charger for cars. “I’ll build you a device that you can connect to the grid to charge the battery,” said Günter Fronius. Over the years the product range has expanded many times over. 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • 1945: 1 employee • 1980: 250 employees • 2009: 2,700 employees • 2020: 5,660 employees • 2022: more than 6,100 employees 𝗠𝗼𝗿𝗲 𝗶𝗻𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻 • www.fronius.com/en • www.fronius.com/en/career • www.fronius.com/en/imprint • www.fronius.com/en/data-privacy-statement
Wels, AT
Private
$100M Revenue
http://www.fronius.com
1.5K Employees
Wien Energie GmbH
Wien Energie is the largest regional energy provider in Austria and a subsidiary of the municipal utility company Wiener Stadtwerke. We reliably supply two million people with environmentally friendly power, cooling, heating, electromobility and telecommunications. In order to promote climate protection, we will be investing heavily in expanding the use of renewables such as solar, wind and hydro power as well as electromobility. We are actively shaping the future of energy through innovation and research. With a turnover of EUR 1,948.1 million and an average of 2,167 employees (2020), Wien Energie can be counted among Austria’s top 30 companies in terms of turnover. Wien Energie is therefore one of the largest employers in the Austrian capital.
Wien, AT
Private
$3.4B Revenue
https://wienenergie.at
1.6K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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