The OS currently has 20 members, which are: W.S.G. Abacus C.T.S.G. Alembic S.V. Arago S.A. Astatine S.A. Atlantis S.A. Communiqué ConcepT S.G. Daedalus S.V. Dimensie W.T.S. Ideefiks I.C.T.S.V. Inter-Actief Komma W.S.G. Isaac Newton H.V. Ockham Onwijs S.V. Paradoks S.A. Proto E.T.S.V. Scintilla Sirius S.V. Stress
