VASAS has ca. 20000 active and 4000 pensionary members. VASAS is based on democratic principles. Members at the same workplace or company form a basic organization, which cooperate at regional level.

The main decision-making body is the Congress, where the 3 main officials of VASAS, the president and the two vice-presidents, are elected for 5 years. At the Congress, the Supervisory Board also get its mandate.