OES d.o.o., Bulevar JNA 176, RS – 11000 Beograd (Voždovac)
Optimal Energy Solutions d.o.o., Ivana Šibla 11, HR - 10000 Zagreb
The main activity of the company is engineering, sales and servicing of equipment for process and thermotechnical plants. For the entire range of products, in addition to training, maintenance and servicing, we also offer technical support in the selection, designing, installation and commissioning of our equipment.