The Hellenic Institute of Metrology (EIM) is the national metrology institute of Greece. It is supervised by the General Secretariat of Industry,of the Ministry of Development. It constitutes the national metrological body as well as the official technical state advisor on issues of metrology. It was founded in 1994 and legally established by the state law 2231/94. It is located in the Industrial Area of Thessaloniki, Greece.

It includes 16 metrology laboratories housed in two independent buildings that cover an area of 4.000 sq. m. (building A) and 1.800 sq. m. (building B) respectively that fully meet the standards for metrology laboratories. The laboratories are equipped with computerized environmental control systems and their construction is such that minimizes the electromagnetic interference and vibrations.

The laboratories maintain the national standards for the realization and dissemination of the fundamental and derived units of the International System of measurement (SI). The laboratories offer calibration services and their operation complies with the requirments of ISO 17025.