Catà collaborated often with other architects. After finishing his studies, he worked in the workshop of the modernist architect Lluís Domènech i Montaner. In 1916 with Eusebi Bona i Puig he won the competition to build the Posts and Telegraphs building in Girona. Another success was in collaboration with Pedro Cendoya the winning of the design competition for the Palau Nacional in 1925, completed for the 1929 Barcelona International Exposition. Collaborating with the architect Adolf Florensa, Catà built the Cultural centre of the Doctor in Barcelona between 1929 and 1933.