our Leadership

Executive board
The Viessmann Generations Group is led by the Executive Board - all united by our shared purpose.
Max Viessmann

Chief Executive Officer and President
Max Viessmann
Max Viessmann represents the fourth generation of the founding family and serves as a CEO and President of Viessmann Generations Group. A visionary leader, he is guiding the family company towards scalable, sustainable solutions for a smarter future. With a strong focus on innovation, technology, and environmental responsibility, Max brings together exceptional entrepreneurs and companies worldwide under one shared purpose: Co-creating living spheres for generations to come.
Boris Scukanec Hopinski

Chief Investment and Operating Officer
Boris Scukanec Hopinski
Boris Scukanec Hopinski joined Viessmann Generations Group as Chief Investment and Operating Officer in early 2024. Earlier in his career, he gained financial expertise at Goldman Sachs and executive leadership roles at UniCredit. He is passionate about identifying high-potential investments and driving operational excellence to create long-term value across the Group's ecosystem.
With nearly two decades of experience, Boris combines strategic investment insight with hands-on operational leadership.
Desiree Castell

Chief People Officer
Desiree Castell
Desiree Castell was appointed Chief People Officer of Viessmann Generations Group in April 2026. She has been shaping the Group’s global people, organization, and ecosystem since 2021. Prior to Viessmann, she led rapid growth at a technology scale-up and advised on strategy and organizational transformation at McKinsey & Company. Desiree is passionate about building value-driven organizations and believes that lasting performance is created by empowering the right people in the right place.
Rolf Wetzel

Chief Financial Officer
Rolf Wetzel
Rolf Wetzel joined Viessmann Generations Group as Chief Financial Officer and Member of the Executive Board in October 2025. Earlier in his career, he spent over a decade at Heraeus as CFO on the Board of Managing Directors and held senior roles at Lanxess AG.
He brings extensive financial expertise in family-owned and global corporations and works closely with the Investment Team on portfolio stewardship and capital allocation.
Board of directors
The entrepreneurial personalities in the Board of Directors actively support the Executive Board with advice and ideas, oversee its work, and ensure the highest standards of corporate governance and corporate responsibility.
Prof. Dr. Martin Viessmann
Non-Executive Member of the Board of Directors
Prof. Dr. Martin Viessmann
Frauke von Polier
Frauke von Polier
Prof. Dr. Thomas Rödder
Deputy Chairman