"ejona" is one of the most well-known companies in the country, with numerous projects carried out in the largest adequacies in the region. References include:
- Peja Water Supply Company "Hidrodrini"
- Regional Water Supply Company of Prishtina
- Regional Water Supply Company of Gjilan "Hidromorava"
- Regional Water Supply Company of Gjakova
- Regional Water Supply Company "Drini i Bardhe"
- Trepça Mines A.S
