In critical care medicine, collaborative networks are well-developped for clinical research. This model is equally interesting for care, education and management. For example, in a network, an intensivist can be easily sent to another hospital in order to deliver specialized care. In French and Italian part of Switzerland, a critical care network was recently founded and it implements now several collaborative projects. Networks are very interesting for their members because they allows some small ICUs to survive and avoid very expensive costs related to restructuration of the larger ones. Thus, this model will certainly develop during the next years.