It also owns Techint Engineering & Construction, which provides operation and management services for complex and large-scale projects; Tenova, which designs technologies and develops services that help metals and mining companies limit environmental impact; Tecpetrol, an energy exploration and production company in Latin America; and Humanitas, which owns health care institutions.

[1] After World War II, Rocca, who opposed the fascist regime in Italy, traveled to Latin America, where he provided engineering and construction services.

[1][4] In the 1980s, important projects were undertaken in Argentina, Brazil, Ecuador and Mexico, and the company diversified into new fields of activity, building the first nuclear facilities and offshore platforms.

A significant part of Techint's core manufacturing strength has since been concentrated in the San Nicolás de los Arroyos-Villa Constitución oil-and-steel corridor, where the company is involved in the production of cold rolled steel.

[1] In the mid 1990s, in Italy, the Techint Group entered the health services sector by building and managing Istituto Clinico Humanitas (ICH), a hospital and medical research institute near Milan.