Reference list of the most important investors we have collaborated with in recent years:

• Croatian Waters
• City of Zagreb
• Environmental Protection and Energy Efficiency Fund
• HŽ Infrastruktura LLC
• Hrvatska elektroprivreda d.d.
• Dubrovnik-Neretva County
• Šibenik-Knin County
• Split-Dalmatia County
• Zadar County
• Primorje-Gorski Kotar County
• City of Dubrovnik
• Bosnia and Herzegovina, Una-Sana Canton, Kantonalno ministarstvo privrede, Directorate for roads
• City of Ploče
• Varkom Varaždin
• Čistoća Dubrovnik
• IND-EKO d.o.o., Rijeka
• Žičara Učka d.o.o., Opatija
• Cromaris d.d, Zadar
• KD Autotrolej d.o.o. Rijeka
• Knauf d.o.o., Knin
• Rijakatank d.o.o., Rijeka
• Holinger AG, Zurich
• IIstrian Water Protection System LCC
• Water Institute Josip Juraj Strossmayer
• HEP-Proizvodnja d.o.o.
• JP Elektroprivreda HZ BZ