National Intelligence Service (Greece) Tags: Government Agency.The National Intelligence Service (NIS) (Greek: Εθνική Υπηρεσία Πληροφοριών ΕΥΠ Ethniki Ypiresia Pliroforion EYP) is the national intelligence agency of Greece. Its headquarters are located in Athens.Its Director General is Theodore Dravillas MSc. formation date 1953-05-09 formation year 1953-01-01T00:00:00+02:00 headquarter Athens, Greece jurisdiction Politics of Greece location Athens, Greece Learn more... Loading...