- Institute for Canton Sarajevo Development - Canton Sarajevo lighting survey
- Testingelektro doo Sarajevo - electroenergetic network
- Arcade doo Tuzla - electroenergetic network - ground water and overground installations
- IUS Sarajevo educational fundation - electroenergetic, water supply and sewerage network
- Elko Marić doo Mostar - electroenergetic network
- CARITAS Sarajevo - electroenergetic network
- SETRO d.o.o. Kreševo