Sunvesta Team


Sunvesta Team


CEO and Chairman of the Board

Hans Rigendinger graduated from the Swiss Federal Institute of Technology Zurich (ETHZ) in 1969 with an MA in Civil Engineering, majoring in Structural and Foundation Engineering.


Member of the Board

Dr. Max Rössler studied Mathematics at the Swiss Federal Institute of Technology Zurich (ETHZ). After graduating with a PhD, he received a research assignment from NASA at Harvard University.

Humberto Pacheco-Alpízar, M.C.L.

Member of the Board

Until December 2017, Humberto Pacheco was the Chairman and largest shareholder of Pacheco Coto, the oldest Costa Rican law firm, with offices in eleven countries on four continents, specializing in international asset planning.

Thomas Schmid

Executive Project Manager

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Thomas Schmid has already accompanied several challenging strategic and architectural redesigns of unique hotel projects and been active in the management of various Swiss luxury hotels.

Fabricio Bianchini

Project Manager Engineering

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Fabricio Bianchini Murillo graduated from the University of Costa Rica as a civil engineer in 2010. He subsequently obtained his MASc in Engineering from the University of British Columbia, majoring in Construction and Project Management.

Andrea Beck

Executive Assistant

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Andrea Beck has been Executive Assistant to the CEO of Sunvesta Holding AG since 2007. In 2001, she completed her law studies at the University of Zurich. She then worked for AIG Europe Versicherungsgesellschaft and later for the Zurich District Court. In 2009, while working for Sunvesta Holding AG, Andrea Beck also completed her training as an HR specialist.

Violeta Reithaar


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Violeta Reithaar has been Head of Accounting at Sunvesta Holding AG since 2016. In 1998, she completed her studies with a BA, majoring in Tourism/Hotel & Restaurant at the University of Economics in Varna (Bulgaria). In the following years, she acquired a lot of experience in the hotel and catering industries. In 2014, Violeta Reithaar completed her continued education and training at NBW Zurich as an Accounting Clerk and in 2015 at the STS Swiss Fiduciary School as Specialist Salary Administration.