AS Metrosert is the Central Office of Metrology (equivalent to a National Metrology Institute) in Estonia. AS Metrosert performs the calibration and verification of measuring instruments, certification of products and management systems and provides training in metrology. The company also maintains and develops the national measurement standards.
Assay Office "Eesti Proovikoda" is accredited in the precious metals analyses field according to EVS-EN ISO/ IEC 17025 standard.

Metrosert represents Estonia in EURAMET e.V. and has signed Mutual Recognition Arrangement CIPM MRA for national measurement standards and for calibration and measurement certificates issued by National Metrology Institutes. Metrosert is an eligible participant of The European Metrology Programme for Innovation and Research (EMPIR).

The company is the successor of the Chamber of Weights and Measures established in 1919.

Metrosert participates in Estonian and international standardization activities through

the technical committees of the Estonian Centre for Standardization (EVS/TC 38 Metrology,

EVS/TC 33 Management systems and conformity assessment).

Metrosert is a member of the Estonian Chamber of Commerce and Industry.

Metrosert is a member of the Estonian Association for Quality.

Metrosert is a training card partner with Töötukassa.