About us

GFA Entec AG is a Swiss consulting and engineering company based in St. Gallen with more than two decades of experience in the development of renewable energy and energy efficiency (RE & EE) and increasing access to modern energy for rural communities in Asia, Africa, Latin America, and Europe. We have extensive experience advising and assisting international donor agencies, government ministries, private sector project developers, and communities at all project levels.

GFA Entec AG is a 100% subsidiary of GFA Consulting Group GmbH, Germany, one of the largest European consulting firms in international cooperation, and is its representation in Switzerland.

By joining GFA CG, GFA Entec AG has gained access to the group’s global network of more than 1,300 experts and national partners in nearly 130 countries. These experts reinforce GFA Entec AG’s expertise in training, education, public awareness, capacity building, financial service advising, climate change, and water resources management.

>> Download GFA Entec Sustainable Energy Solutions


Managing Directors


Dr. Klaus Altemeier – Managing Director

Director and shareholder of GFA Consulting Group, is an economist with more than 30 years experience in development cooperation. 


Ulrich Theuerkauf Managing Director

Manager of the GFA Consulting Group energy team for Europe, Middle East and Africa, is a political scientist with more than 20 years of experience in development co-operation.