Energie AG Oberösterreich Umwelt Service GmbH

ESCO (Energy Service Company)

Fronius International

Manufacturer in Upper Austria

GASOKOL

Manufacturer in Upper Austria

GLOBAL HYDRO ENERGY

Manufacturer in Upper Austria

GUNTAMATIC

Manufacturer in Upper Austria

Hargassner

Manufacturer in Upper Austria

Primetals Technologies Austria GmbH

Consultancy/ planning company