The "AD Xenopol" Institute of History has, as main objective, the research of the history of the Romanians, in close connection with the European historical evolutions from our immediate proximity or from more distant spaces. Special attention is paid to the continuation of the editing of medieval sources, in the prestigious national collection Documenta Romaniae Historica, Series A. Moldova, which is one of the fundamental research projects of the Romanian Academy. To this are added the systematic studies carried out by the institute's researchers regarding the social structure of the Romanian society, the evolution of the institutions, the medieval Moldovan village and city, the historical demography, the establishment and evolution of the modern Romanian state, the issues of elites, nationalism and minorities. , cultural policies or the history of totalitarianism and anti-communist resistance,

The Government of Romania decided to establish the Institute of History of Religions as a research institute subordinated to the Romanian Academy, having as main directions: the history of Indian and Iranian religions, the comparative history of monotheisms and religion and modernity.

Institute of Linguistics „Iorgu Iordan - Al. Rosetti ”is conducting research studies in order to cultivate and promote the Romanian language. It develops works in the field of linguistics, to be used by scholarly and general public alike, such as: grammar guidance, spelling, orthoepy, dictionaries and linguistic atlases

The Institute of Mathematics "Simion Stoilow" (IMAR) represents one of the most significant centres of the Romanian mathematical life. During its 50 years of activity virtually all leading Romanian mathematicians were members or associated with this research unit. IMAR is organized on research groups, each group having its own research agenda for periods of 1-3 years. Each group has a staff of senior researchers accompanied by young researchers and organizes at least one weekly seminar. Each group has permanent collaborations with many Universities from Romania and with different important research centers from abroad

The Institute was created over 25 years ago as a Center for the study of Bucovina Region's problems and it was subordinated to the Iaşi Branch of the Romanian Academy. Its fields of research are history, literary history, ethnography and folklore, natural sciences, all focused on the Bucovina region.