In the "2019 Top Think Tanks Worldwide (US and non-US)" category, the Konrad-Adenauer-Stiftung (KAS) ranks 15 out of the 176 think tanks evaluated, making it the best German think tank in the ranking. The American think tank Carnegie Endowment for International Peace took first place.

KAS claimed first place in the categories "Best Think Tank Network" and "Best Think Tank with a Political Party Affiliation Center for Excellence" for three years in a row from 2016 to 2018.

All results of the international ranking are available online: https://repository.upenn.edu/think_tanks/17.