IRSA may refer to:-
- Istituto per le Ricerche di Storia dell'Arte, a publishing house in Poland
- Inversiones y Representaciones Sociedad Anónima, a real estate development firm in Argentina
- Indus River System Authority, an agency of the Pakistani government
IRSA primarily operates as a publishing house in the field of scholarly art historical texts. It is the publisher of the international periodical Artibus et Historiae; however, it also publishes important volumes by eminent scholars through its Bibliotheca Artibus et Historiae. Among its publications are exhibition catalogues, artists’ biographies and autobiographies, and even a book of poetry.
Inversiones y Representaciones Sociedad Anónima (IRSA) is the leading real estate development firm in Argentina. It's controlled by Cresud S.A. in a 64%.
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