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Our people
You and your team came together for a purpose. So did we at Sum.
We believe in business as a force for good. We find meaning in supporting your transformative journey. We all share a deep commitment to you and your aspirations.
Our team is a global one, multicultural and cosmopolitan; professionals with many years of life and business experience, doing their own work of developing their outer skill and inner character. We’d love you to meet the people who will confide in your challenges, root for your successes and support you with your progress.
Ekkehard Kuppel
Zurich, Switzerland
Alper Tengüz
Istanbul, Turkey
Laura Devillers
Basel, Switzerland
Oliver Henzler
New York, USA
Pablo Damerau
Buenos Aires, Argentina
Bea Catalá
Madrid, Spain
Beat Zwahlen
Zurich, Switzerland
Bernhard Raschke
London, United Kingdom
Camilla Rohrmann
Hamburg, Germany
Didem Tekay
Istanbul, Turkey
Guido Del Buono
Madrid, Spain
Hendrik Jan Laseur
Lisbon, Portugal & The Hague, The Netherlands
Leah Lawrence
New York, USA
Matthias Hanny
Munich, Germany
Marko Roeder
Zurich, Switzerland
Michaela Luise Fischer
Würzburg, Germany
Philippe Laurent
Paris, France
Rosario Altgelt
Buenos Aires, Argentina
Stefan Wilhelm Fischer
Würzburg, Germany
Claudia Ortner
Vienna, Austria
Our partners
We’re so much more than our immediate team. Over the years, our network of executives have become good friends and collaborators. We’re proud to have founded a growing community of sum experts worldwide.