The annual All SystemsX.ch Day is the largest event organized by SystemsX.ch and counts around 400 guests every year. It is a Swiss-wide networking and information exchange event, which attracts scientists, politicians, industry partners, and the public media. Besides being the main location where new projects are presented or proposed, it also promotes education and training opportunities in Systems Biology. 

It takes place in rotating cities in Switzerland, according to the location of the hosting institution co-organizing the event, which is always one of the 11 partners of SystemsX.ch. Every year there is a guest speaker invited to talk about the latest news and discoveries in Systems Biology. Additionally, researchers from SystemsX.ch projects present their projects and results. The event ends with a PhD Student Poster Award; a scientific poster competition recognizing the best poster with a generous award for the successful PhD students.

The All SystemsX.ch Day provides scientists and non-scientists alike a great opportunity to exchange their knowledge, interests, and needs, while simultaneously acting as an initial platform for future research cooperation.