Swiss federal authorities

Organogram

ENSI’s organisation is governed by the Swiss Federal Nuclear Safety Inspectorate Act (ENSIG).

Click here for the ENSI organisation chart.


News

  • Exterior view of the FLEX building
    News, Posts

    Change in Leadership of the Nuclear Power Plants Division at ENSI

    Dr. Annette Ramezanian is stepping down from her position at the Swiss Federal Nuclear Safety Inspectorate ENSI and will leave ENSI on October 30, 2026.

  • News, Posts

    Federal Council approves ENSI Board’s 2025 activity and business report

    The ENSI Board considers ENSI’s oversight of Swiss nuclear installations to be responsible, effective and of high quality.

  • Patrick Tschudin, new Chief of Staff of ENSI's Directorate Division
    News, Posts

    New Chief of Staff of the Directorate Division

    On 25 March, the Board of the Swiss Federal Nuclear Safety Inspectorate (ENSI) appointed Patrick Tschudin as the new Chief of Staff of the Directorate Division. He will take up his post on 1 August this year. The lawyer and current head of the Legal Section succeeds Andreas Schefer, who will continue to work for…


Documents