In the spring of 1934, upon founding the Daniel Sieff Research Institute (later the Weizmann Institute of Science), in Rehovot, Palestine, Chaim Weizmann invited Bloch to take part in the establishment of the Institute and to head its Physics Department. Initially Bloch joined Dr. Weizmann's team in London and worked for about a year at the University of Cambridge, then, in the fall of 1935, he arrived in Rehovot (Eretz-Israel). Soon after, because of severe budgetary difficulties of the new institute, Bloch took upon himself, in the beginning of 1936, the task of managing the institute in addition to his capacity as the head of the physics department and to his own scientific research. In 1941, Bloch, then one of ten Board Governors of Sieff Institute, was nominated as its first and sole Managing Governor. Later on, having been one of the founding fathers of the Weizmann Institute of Science, Bloch continued in the position of Administrative Director as well as a member of the Board of Governors and of all the councils and committees of the Institute.