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About us
Fronius Wels

Why Fronius?

6 values that define Fronius

Our success as a global technology and quality leader – but at the same time as a family-run business – is based on values that we live by every day.
We are proud to say we have been standing by our principles for over 75 years.
portrait Elisabeth Engelbrechtsmüller-Strauß

Then and now – a stable family business 

Fronius remains, as it has always been, a stable family-owned business. Today Fronius is managed by Elisabeth Engelbrechtsmüller-Strauß, and has now been in family ownership for three generations. The values that were important to her grandfather Günter Fronius remain part of Fronius’ culture today.

We have a solid and a diverse business with our three pillars of battery charging technology, welding technology and solar energy.

24 hours of sun video

A global network with Austrian roots

From our strong roots in Austria we have developed a global presence – we are represented around the world by over 30 national Fronius companies. The Business Unit Solar Energy is an important part of over 20 of these. 

In addition, with our worldwide partner network of sales and Fronius Service Partners in more than 60 countries, we can ensure that experts are always close by to provide local support for our customers.

father with kid

Level-headed & reliable – a dependable partner in the photovoltaic industry

Our three Business Units provide us with a diverse base, giving our company strength and stability. Our focus is on:

  • Sustainable and healthy growth
  • Premium quality
  • Sustainable use of resources

Impartial experts’ opinions confirm our dependability: Dun & Bradstreet (D&B), the world’s largest service provider of business-to-business trade information, issued us with a Paper of Excellence in 2020 and assigned us a risk indicator of 1

We can therefore boast the highest security factor.

Fronius Sattledt

Our quality promise – Made in Austria

The connection to our Austrian roots is also reflected in our “Made in Austria” quality promise. As an Austrian family business, we are particularly proud of our sustainable research and production in Upper Austria.

We can back up our claim to offer the highest quality with tests performed under extreme conditions. Our comprehensive endurance tests go far beyond the prescribed standards and routine operating conditions. Only when a device is able to withstand the external influences of extreme temperatures, moisture, ice, salt, dust and dirt without damage will it go into series production.

Fronius Solhub in Thalheim

An innovation leader thanks to experience & enthusiasm

We recognized early on what is important to us and have been working intensively with solar technology and other innovative topics such as hydrogen since the 1990s. Our many years of work and experience in the field of sustainable energy solutions have made us the innovation leader.

Many of our key milestones have been recognized with well-known awards such as the Intersolar Award.


Strong partnerships – working together for 24 hours of sun

Sustainable and professional partnerships are of paramount importance to us. Our Fronius System Partner program helps us to ensure the usual Fronius quality for everyone involved: 

Our certified Fronius System Partners benefit from regular training and service support, plus much more. It ensures that our partners have the expertise they need relating to our products and can in turn offer their customers the best quality.

Our partner network is widely distributed, so every customer receives professional advice, high-quality products and comprehensive support services. In this way, we are taking solar energy to the next level and, working together with our customers and partners, to bring our vision of 24 hours of sun to life.

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