Jessica Richman: CEO and cofounder, UBiome

Age: Under 30

About: Jessica Richman is the co-founder and CEO of uBiome, a biotech startup focused on researching microbiomes inside the human body. Y Combinator alum uBiome was financed by crowdfunding — its 2013 IndieGogo campaign raised $351,193 of its $100,000 goal. In August, uBiome raised $4.5 million from investors including Andreessen Horowitz. Before co-founding uBiome, Richman had stints at companies like Google, McKinsey, and Lehman Brothers.