ΣΤΑΘΕΡΕΣ ΣΥΓΚΟΙΝΩΝΙΕΣ ΜΟΝΟΠΡΟΣΩΠΗ ΑΝΩΝΥΜΗ ΕΤΑΙΡΕΙΑ

ΣΤΑΘΕΡΕΣ ΣΥΓΚΟΙΝΩΝΙΕΣ ΜΟΝΟΠΡΟΣΩΠΗ ΑΝΩΝΥΜΗ ΕΤΑΙΡΕΙΑ (ΣΤΑΣΥ Α.Ε.) is a state-owned entity operating Athens' metro and tram systems, with no involvement in defense, aerospace, or security work. As a public utility under OASA oversight, it procures supplies, services, and equipment from third parties to maintain and operate its rail infrastructure, including through public-private partnerships.