The "Scientific and technical activities, administrative and support services" major economic sector (MES) falls under the NAF 2008 classification.
The new classification of economic activities "NAF 2025" has been in application in the Principality since 1 January 2026. In this context, the groupings and labels of this sector have been redefined and divided into two new MESs ("Professional, scientific and technical activities" and "Administrative and support service activities").