The IHS is organized as an association (Verein), following Austrian jurisdiction. Its main decision-making body is the Board of Trustees (Kuratorium), consisting of nine members. Advising roles are taken by the Scientific Advisory Board and the Stakeholder Committee.
The Institute has a two-level structure. It is managed by the Scientific Director Prof. em. Dr. Klaus Neusser (as of May 5, 2022) the position of General Manager is currently vacant. The management is supported by the administrative staff in the head office, including HR, accounting and finance.
Research Groups and Competence Centers constitute the core scientific units of the Institute. Many projects are conducted by teams across research units. The research units receive support from administrative and service units, such as the IT, Library, Head Office and Finances.
(as per January 2021)