I-O psychology is one of the fastest growing fields (Schellenberger, 2010; U.S. Bureau of Labor Statistics, 2014) of this decade, and the job of industrial organizational psychologist has been ranked the second most attractive job in science (“Industrial Organizational Psychologist Overview,” 2018). As more undergraduate students enter the field of I-O psychology, this will result in an increased demand for graduate-level degrees. With the growing influence of I-O psychology as a result of this influx, there is a need to understand from where I-O PhD programs draw their faculty. These faculty train new I-O psychology PhDs, and their training can have an effect on the course of the science (Smaldino & McElreath, 2016) and the academic life of these institutions. One way to understand how I-O psychology graduate programs grow is through an investigation of the academic origins of their faculty.