Lorin Gresser is the founder of Dem Dx, a medical diagnosis app used by medical students and professionals that guides users through symptoms to find the most likely medical diagnosis, while enabling access to decades of clinical experience along the way. Prior to launching DemDx in 2015, Gresser was head of alternative investments and product strategy for Threadneedle Investments from 2006 to 2010, and director of strategy for the company from 2000 to 2006. She was a consultant with The Boston Consulting Group from 1998 to 2000. She received her Doctor of Medicine from Kings College London.