p/a CFACI 18 rue Balard
75015 Paris

T +49 711 679 76 0
F +49 711 679 76 11

We have decided to maintain our company registration in Paris, but to reintegrate the French-speaking staff in Stuttgart and Munich.
Our excellent transit connections allow us to be on site in Paris at short notice while offering the deep expertise available across our offices.

Your contacts in Stuttgart and Munich:

Christian Frenzel
Project Manager

Christian began his career as a thermal simulation specialist and the creative problem solver is still part of the software development team. more

Stefan Holst
Managing Partner

Stefan leads Transsolar's Munich team with his wide background in high-comfort, low-impact building concepts in projects around the world. more

Raphael Lafargue
Project Manager

Raphael is driven by a natural curiosity and seeks answers to unsolved questions. more

Christian Oberdorf
Project Manager

Christian has developed special knowledge in complex building and system analysis and is a leading expert on computational fluid dynamic air flow analysis. more

Léna Obrecht
Project Engineer

Léna holds two master’s degrees: ‘Building and Architectural Engineering’ and ‘Multidisciplinary Engineering’. more

Elise Roussel
Project Engineer

Elise holds a degree in Environmental Engineering from École Centrale in Lyon. She completed her Master's Degree in “Optimizing Wind Modeling Outdoors” with Transsolar. more

Nicole Schwonke