ETSS AG is an EMPA-ETH Domain Spin-Off and Swiss research and consulting company in the field of probability and variability analytics, strategy consulting, environment and health.

Our passion lies in risk research and engineering. Our services include, technology assessment, statistical and game-theoretic decision support as well as material flow analysis, external peer review, quality assurance and project management.

Do you think in scenarios? We compute these, a thousand times, a million times. Gain in knowledge is guaranteed!

Our expertise helps companies and institutions make safer decisions. We more broadly capture uncertainties and ambiguities by making them quantifiable with statistical methods.

We rely on many years of experience and on a network of specialized partners in other public and private institutions/companies in Europe and worldwide.

We operate in the commercial sector, we do not offer academic support.




René Ritter, Dipl. El. Ing. ETH
2018- Board of directors  ETSS
– 2017 Senior consultant, Operations manager, Computer science &
Development engineer: United Security Providers AG, James Martin Associates,
Olivetti (Schweiz) AG, ASCOM AG







Fadri Gottschalk, Dr. sc. ETH
– 2011- Board of directors, Manager and Researcher of ETSS 
2009-2015 Lecturer, Decision Theory, ETH Zürich
– 2007-2012 Doc & Postdoc EMPA St. Gallen, ETH Zürich
– 1996-2007, Teacher math, nat. (Head since 2001), Scuol


Sandy Ubl, Dr. sc. ETH
2017- Researcher & Manager ETSS
2010-2015 Researcher Safety and Environmental Technology Group, ETH, Zürich
2007-2009 Scientific staff, MeteoSchweiz, Zürich
2002-2006, Doc & Postdoc EMPA Dübendorf, ETH Zürich


Yuanfang Zheng
-2016-Student MSc & Teaching Assistance Env. Eng. ETH
2015-2016 Research Assistant, UNNC (China)
-2014 Consultant China Huanqiu Contracting & Engineering Corporation (Shanghai)