ESTEC IT Support Contacts

The Science and Operations IT Unit (SITU) at ESTEC deals with different aspects of the science-related IT infrastructure and services. However, for any type of question you may have, for instance for the Web Portal (Cosmos) and/or Web Applications, or for Linux desktops or UNIX/Linux servers, etc., please contact the SITU Service Desk.

If your question is about Linux desktops or UNIX/Linux servers at ESTEC, please select "SCIOPS Services at ESTEC" as "project/mission" for most efficient routing of your request.

For all Corporate IT services and applications (e.g. Windows/MacOS desktops/laptops), please contact the ESA IT Service Desk at

The preferred way to contact them is via email, in case that is not possible they can be contacted by phone as well. Use extension 80700 when at ESA or +39 06 941 80700 when outside ESA.