Our team

As seen in our story, we are unreasonably picky about our peers. This sentiment applies to our executives as well. Our management team is comprised of savvy entrepreneurs and industry experts, bringing years of experience to a young company. We all are dedicated to our strong culture and work tirelessly to help our team scale, grow, and succeed.


Walter Kiesinger | CEO Coresystems

Walter Kiesinger


Finance / Admin

Alexander Thomas | Coresystems

Alexander Thoma


Patrizia Münch | Coresystems

Patrizia Münch



Michael Berkowsky | Coresystems

Michael Berkowsky

Head of Business Solutions CH

Matthias Butz

Head of Business Solutions DE

Sebastian Bierer

Maik Diessner

Markus Kobi

Robin Krietsch

Angana Maity

Libor Mego

Osama Safi
Marcel Möhlen | Coresystems

Marcel Möhlen

Fabian Zubler

Simone Sutter

Emilia Baumann

This could be you!


Sonja Altschuh

Head of Development

Pedro Magueija

Anders Olsson

Stavros Kontovas

Mauro Lupo

This could be you!

Human Resources

Chantal Kramer-Grenacher

Head of HR

Hanna Bergner

Marco De Rinaldis

Internal IT

Daniel Inderbinen

Head of IT

Marek Giesen

Markus Rüegg

Partner Management / Channel Sales

Fabienne Schuler

Head of Partner Management

Stefanie Huber
Raphael Hübner

Raphael Hübner
Dominik Leuenberger

Dominik Leuenberger

Bernhard Weiersmüller


Kay Diederen

Account Manager


Simon Kaufman

Head of Support

Karin Ahrens
Ron Almogi, Coresystems

Ron Almogi

Oleh Fabri

Roger Grenacher
Cyril Roth | Coresystems

Cyril Roth

Bryan Schneider

Tülin Sivri

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Board of Directors

Frédéric Chanson | Coresystems

Frédéric Chanson

Chairman of the Board of Directors

Frédéric Chanson is a lawyer by education with over 30 years experience in both listed and private equity investments.

Formerly a Director with Bank Julius Baer & Co. AG, he co-founded the investment boutique Firminvest AG in Zurich in 1995, where assets are managed on behalf of its international clientele. He is an anchor investor in Coresystems.

Manuel Grenacher

Member of the Board of Directors, Founder of Coresystems AG

Manuel Grenacher is a tech entrepreneur with a strong drive to achieve and a vision to transform the customer service experience using Crowd technology.

With a proven track record for vision and leadership, his achievements have been recognized by Gartner, CIO Magazine, the Swiss Economic Council and Ernst & Young’s Emerging Entrepreneur of the Year Awards.

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