He earned a Diploma from École supérieure des sciences économiques et commerciales in Paris, then entered the Artillery School of Fontainebleau in 1922.
In 1925, he embarked on a voyage, crossing the Atlantic Ocean; he visited Rio de Janeiro, Buenos Aires, Valparaiso, Santiago, La Paz, then Havana and New York City.
It has long been a tradition of the Hottinguer family to play an active role in consideration of the major questions of national and international economics and finance, Baron Rodolphe Hottinguer continued his tradition, occupying, in addition to his role in the bank, important posts including Vice-Chairman of the Paris Chamber of Commerce, Chairman of the International Chamber of Commerce, Chairman of the European Banking Federation and, between 1943 and 1979, Chairman of the French Banking Association.
Hottinger & Cie took part in the creation of the Insurance company Drouot, one of the origin of the group AXA.
He married Josiane Van Laer, and had two sons Rodolphe (1956) the seventh Baron Hottinguer and Frédéric.