The shareholders and associate members of the CTAO gGmbH

The CTA Observatory gGmbH (CTAO gGmbH) is the legal entity for CTA in the preparation of the implementation of the CTA Observatory. The CTAO gGmbH works in close cooperation with the CTA Consortium, which is responsible for directing the science goals of the Observatory and is involved in the array design and supplying components (as in-kind contributions). The CTAO is governed by the CTA Council, composed of shareholders from 11 countries and associate members from two countries:

Shareholder Country Shareholder Delegates Entrance Year
Australia Australia Astronomy Limited James Murray, Gavin Rowell 2018
Austria Leopold Franzens Universität Olaf Reimer 2016
Czech Republic Institute of Physics of the Academy of Science of the Czech Republic Petr Travnick, Marek Vyšinka 2015
France Centre national de la recherche scientifique (CNRS) Berrie Giebels, Guy Perrin 2016
France Commissariat à l’énergie atomique et aux énergies alternatives (CEA) Pascal Debu 2016
Germany Deutsches Elektronen-Synchrotron (DESY) Christian Stegmann 2014
Germany Max-Planck-Gesellschaft (MPG) Markus Schleier, Corinna Minderop 2016
Italy Istituto Nazionale di Astrofisica (INAF) Filippo Maria Zerbi 2014
Italy Istituto Nazionale di Fisica Nucleare (INFN) Antonio Masiero 2017
Japan University of Tokyo Masahiro Teshima 2015
Slovenia University of Nova Gorica Danilo Zavrtanik 2018
Spain Instituto de Astrofísica de Canarias (IAC) Inma Figueroa, Rafael Rebolo 2015
Switzerland Universität Zürich Florencia Canelli, Xavier Reymond 2014
United Kingdom The Science and Technology Facilities Council Antony Medland 2015
Associate Member Country Associate Member Delegates Entrance Year
Netherlands Netherlands Organisation for Scientific Research (NWO) Saskia Matheussen, Jacco Vink  2015
South Africa National Research Foundation Markus Böttcher  2015

The statutes of the CTAO gGmbH: Articles of Association


Chair, CTA Council: Gabriel Chardin

Vice-Chair, CTA Council: Giampaolo Vettolani

Managing Director, CTAO gGmbH: Federico Ferrini

Administrative and Finance Committee (AFC)
Purpose: To advise the Council on matters of administrative and legal issues of financial management.
Chair: Dirk Steinbach

Vice Chair: James Botha


In-Kind Review Committee (IKRC)
Purpose: To assess the process of calls for in-kind contributions to the CTA Observatory, evaluate proposals received, provide recommendations on the selection of the proposals to the Council and to advise on the contracting and reviewing process of in-kind contributions.

Chair: Richard Schilizzi

Vice Chair: Christian Fabjan

Scientific and Technical Advisory Committee (STAC)

Purpose: To monitor and evaluate the scientific goals and overall layout of CTA, including its technical design. To assess the costs of construction and operation of the facility.
Chair: Roger Blandford

CTA Council Meetings


The CTA Council meets on a regular basis but at least once per year. The meetings are not open to the public and are attended by shareholder delegates and their experts, associate member delegates, CTA spokesperson(s), the chair of the Consortium Board and the Managing Director assisted by the Technical Director/Project Manager, the Scientific Director/Project Scientist and additional members of the company at the Chair’s discretion. Other persons whose presence may be required (e.g. external auditors) may be invited by the Chair with the Council’s approval.


Next Meeting

16th Council Meeting

7-8 March

Bologna, Italy


Go to the CTA members site (log-in required).

13-14 November 2018

19-20 June 2018

1-2 March 2018

12 January 2018

14-15 November 2017

11-12 July 2017

8-9 March 2017

14-15 November 2016

26 September 2016

13-14 June 2016

6-7 March 2016

13 November 2015

15-16 July 2015

25-26 March 2015

22 October 2014

5 September 2014