The association is constituted by the following members categories
Founder members : the companies that participated in the articles of association
Ordinary members : companies that carry out manufacturing activities for the fabrication of pressure equipment.
Aggregate members: companies in the mechanical sector of pressure equipment, which carry out their activities in complementary sectors or which operate on behalf of or in collaboration with companies qualified as ordinary members.
Honorary members: companies, public and private bodies, personalities, who distinguished themselves in the development and support of the pressure equipment industrial sector appointed by the Association's Board of Directors.