Scholars have discussed for many years whether leaders are born or made. A key question is whether leadership training can push leaders to a more active leadership behavior - also in the eyes of their employees. This article presents the results of a large-scale field experiment where public and private leaders were randomly assigned to a control group or one of three leadership training modules aimed at affecting employee-perceived transformational and/or transactional leadership. The participating leaders are from different Danish organizations: Tax agencies, primary and secondary schools, daycare centers, and banks. All participating leaders and employees were surveyed before and after the training programs, providing us with panel data from 4,782 employees from 474 organizations. We find that the three leadership training programs significantly affected the level of employee-perceived leadership in the intended directions, indicating that leaders can actually be made.