Leibniz Institute for Social Sciences Germany
GESIS - Leibniz Institute for the Social Sciences Cyber
Denver, CO
Cologne, Germany
New Graph Environment Ltd. Earth
@insightsengineering Spain
University of Siegen Siegen, Germany
Bielefeld, Germany
Michigan State University http://aisp.msu.edu/about/land/
Freelance Madrid (Spain)
cynkra Germany
Public Transport Bern, Switzerland