He became a member of the Administrative Board of the Spanish Popular Bank in 1964, and, later that year, was instrumental in creating a new branch - the European Business Bank. In 1965, he helped set up the Spanish Analysts' Investment Institute, the board of which he presided over until 1973 when he was named Honorary President.
He joined the Administrative Board of the Spanish Popular Bank in 1964 and subsequently played a significant role in launching the European Business Bank that year. He also contributed to the creation of the Spanish Analysts' Investment Institute in 1965, which he chaired until 1973 when he was appointed as Honorary President.