Fronius International is an Austrian company with headquarters in Pettenbach and other sites in Wels, Thalheim, Steinhaus, Sattledt, Vienna, Salzburg and Innsbruck and 34 international Fronius subsidiaries and sales partners/representatives in over 60 countries. With more than 5,400 employees worldwide, the company is active in the fields of battery charging systems, welding technology and solar energy. With its innovative products and services and more than 1,200 active patents, Fronius is world technology leader.