From its birth until today, CSI-Piemonte has seen its membership increase with the addition of organizations representing the main recipients of its wide-ranging activities.
In addition to the Piedmont Region administration and the two universities in Turin, which originally founded the "Piedmont Consortium for Automatic Data Management" in 1977 (the so-called "Founders"), in 1979 the City of Turin and the Province of Turin ("Supporting Members") joined the organisation. They were then followed later by a large number of other organizations ("Ordinary Members").
Among them are all the provinces in the Piedmont region, several municipalities, local health service offices, agencies, an association of municipalities and a mountain community.
The consortium currently has 85 member organizations.