Rising energy consumption, scarcity of resources and environmental pollution put our livelihoods long-term in question. Sustainability means pursuing new paths, to develop ideas and concepts that guarantee humanity today and in the future a livable environment.

We want to expand our knowledge and pass it on. In addition to continuous employee training, we specifically foster collaboration with research institutes and get involved in professional groups. This way we stay up to date with the latest knowledge. Furthermore we pass on our experience within different teaching activities, for example, at the University of Liechtenstein and the Lucerne University of Applied Science and Arts.

Since 2020, EK Energiekonzepte and Lenum’s lighting design has been combined under our new brand spectrum ( and thus reconciles different interdisciplinary competences at two locations.


Memberships in associations

Lenum AG, EK Energiekonzepte AG or an employee are members of the following associations:

DECHEMA Society for Chemical Engineering and Biotechnology registered association
ENAW Business Energy Agency
Energie Cluster
Energy City
FEZ Forum.Energy.Zurich
LIA Liechtenstein Engineer and Architects association
NNBS  Network for Sustainable Building Switzerland
Passive House planner
SES Swiss Energy Foundation
SGA Schweizerische Gesellschaft für Akustik
SGNI Swiss Society for Sustainable Real-estate Management
SIA Schweizerischer Ingenieur- und Architektenverein
SGL Schweizerische Lichtgesellschaft
SVU Swiss Society for Environmental Experts
VDI Association of German Engineers, registered association
VOBE East Swiss Society Building and Energy Experts
Liechtenstein Chamber of Commerce