From 1998 onward, agreements of association have been signed with the following organisations:
University of Tartu, Tartu Observatory
Academic Library of Tallinn University
Institute of the Estonian Language
Estonian Literary Museum
Estonian National Museum
Centre of Estonian Rural Research and Knowledge (METK)
Agreements of association have been terminated with three partners: Institute of Zoology and Botany at Estonian Agricultural University, Institute of Ecology at Tallinn University, Institute for International and Social Studies at Tallinn University.