Leif Fenger Jensen served as the first managing director of the World Diabetes Foundation, holding the position from 2002 until 2005. After launching the foundation, he served as vice chairman of its board of directors from 2005 to 2017. He returned to the foundation as managing director in 2017. Jensen has also worked for Novo Nordisk A/S, holding several managerial positions in the company. In the course of his 25-year career in diabetes treatment and care, he has visited more than 100 countries. Jensen has a master's degree in economics and is a Danish citizen.