Dr. Thomas Sieber

Thomas Sieber is a board member, board advisor, and university lecturer. He recently published a book on Navigating the Human Side of Boardroom Interactions. He chairs the People & Organization Board Chapter of the Swiss Institute of Directors and teaches at the Swiss Board School.

Thomas was a member of the Corporate Executive Committee of Baloise for more than ten years, where he was responsible for strategy, human resources, M&A, legal and corporate governance. Prior to that, he was General Counsel and Secretary to the Board of Directors and worked for Siemens, Landis & Gyr, and Lenz & Staehelin.

He studied law at the University of St. Gallen, where he also obtained his doctorate. Thomas is admitted to the Zurich bar and holds an Executive Master in Coaching and Consulting for Change from INSEAD.

Sieber Thomas Dr.
Dr. Thomas Sieber

SIoD Chapter Chair

Learn from Dr. Thomas Sieber

Programs

  • Board Diploma Program

    Develop your board leadership competencies as a diploma-certified board director.

    • 29.5.2026 - 31.5.2026open
    Duration 3 days
    Language English
    Location(s) Thun
    Investment CHF 7'750 (incl. accommodation)
  • VR-Zertifikats-Programm

    Entwickeln Sie Ihre Board-Leadership-Fähigkeiten als zertifizierte:r Verwaltungsrät:in

    • 21.8.2026 - 25.6.2027open
    • 22.1.2027 - 10.12.2027open
    Dauer 15 Tage
    Sprache Deutsch
    Standort(e) Basel, St.Gallen, Thun, Valbella, Weggis und Zürich
    Investition CHF 19’500
Meet Dr. Thomas Sieber

Events

  • Swiss Board Day

    Gain insights into the latest trends from accomplished board leaders and strengthen your network at Switzerland’s premier board event.

    30.6.2026, 10:00 - 17:00open