Hellenic Aerospace Industry (HAI) is the leading aerospace company of Greece. The company headquarters is located in Tanagra, 65 kilometers north-west of Athens, with the industrial complex covering an area of 200,000 sq.m.

Tanagra is a town and a municipality north of Athens in Boeotia, Greece. The seat of the municipality is the town Schimatari. It is not far from Thebes, and it was noted in antiquity for the figurines named after it. The Tanagra figurines were a mass-produced, mold-cast and fired type of Greek terracotta figurine produced from the later fourth century BC, primarily in Tanagra.