Slovenia from 1992
Croatia from 1995
Albania (Mediana sh.p.k.) and
Serbia (Mediana Adria) from 2007
Macedonia (Mediana Marketing solutions) since 2011


TGI survey is currently implemented in 69 countries around the world and includes over 700,000 respondents.

In Slovenia, the TGI survey annually obtains responses from almost 6.000 randomly selected respondents. TGI is also the most inclusive syndicated study on brands in Slovenia, in the region and globally.