Clients
- Confederation: FOEN, SFOE, ARE, FFA, FTA, SECO
- Others: Intergovernmental Conference of the Mountain Cantons RKGK, Wasser-Agenda 21, AQUABERN Association, Pro Natura, VSA, SIA, Resun AG, SVKI, WWF, SVGW, Swisselectric, Wärme Initiative Schweiz, KliK Foundation, OcCC, national and international research programmes (NRP, EU)