Prahlad Singh has been appointed president and chief operating officer of PerkinElmer, effective Jan. 1, 2019. Singh will be responsible for the Discovery and analytical solutions and the diagnostics operating divisions. He joined PerkinElmer in 2014 as president of the diagnostics business, was elected as an officer in 2016 and executive vice president in 2016. Prior to joining the firm, Singh served as general manager of GE Healthcare's women's health business. He has also held senior executive level positions in strategy, business development, and M&A at GE and at Philips Healthcare.