Ministry of Environment and Water

World Bank in Bulgaria

Ministry of Agriculture and Food

Ministry of Regional Development and Public Works

Sofia Municipality

National Electric Company

Bulgarian State Railways

Municipality of Rousse

Municipality of Dobrich

Municipality of Sandanski

Municipality of Sliven

Municipality of Kardzhali

Municipality of Dospat

Municipality of Gotse Delchev

Municipality of Banite

Municipality of Madan

The Kingdom of Morocco

Water Supply and Sewerage of Gabrovo

Irrigation systems

Sopharma AD

Solvay

EP Hydro Power

Plumbing Yovkovtsi

Italcimenti Group