SIX has announced the appointment of Andre Helfenstein as its new Chairman of the Board of Directors, effective 1 January 2026. He will succeed Thomas Wellauer, who has served as Chairman since 2020 and will remain on the Board until May 2026 to support a smooth and orderly transition.
Helfenstein has been a member of the SIX Board since 2020 and brings extensive leadership and governance experience from across the financial services sector. Most recently, he served as Chief Executive Officer of Credit Suisse (Switzerland) Ltd., where he led the bank through a complex and transformative period. His career spans senior roles in private, corporate, and institutional banking, giving him a broad and in-depth perspective on financial markets and client needs.
Earlier in his career, Helfenstein spent more than a decade at Boston Consulting Group (BCG), where he held the role of Partner & Managing Director. During this time, he advised leading financial institutions on strategy, transformation, and organizational development, further strengthening his credentials in corporate leadership and long-term value creation.
The appointment reflects SIX’s commitment to continuity, strong governance, and strategic clarity as it continues to evolve its role at the heart of Switzerland’s financial market infrastructure. With his deep industry knowledge and board-level experience, Helfenstein is well positioned to guide SIX through its next phase of development, focusing on innovation, resilience, and the needs of market participants.
Thomas Wellauer’s continued presence on the Board until May 2026 is intended to ensure stability during the transition and to facilitate the effective handover of responsibilities. Under his chairmanship, SIX has advanced key strategic initiatives and strengthened its position as a trusted financial market infrastructure provider.
Helfenstein’s appointment marks an important milestone in SIX’s long-term leadership planning, reinforcing its focus on sustainable growth and its central role in supporting Switzerland’s financial ecosystem.
