Billy founded Sterling in 1975 and has served as its Chairman since 2014. With more than 40 years of experience, Greenblatt is widely considered to be one of the pioneers of the background screening industry. Under his leadership, the company fundamentally transformed the way companies, both large and small, hire and retain the best talent for their organizations. In 2018 he returned to the role of CEO to lead the company through its next phase of growth.