. "Nathaniel David is an American scientist and entrepreneur, who co-founded a series of technology companies in the biotechnology and sustainable energy sectors, including Syrrx (acquired by Takeda Pharmaceutical Company), Achaogen, Kythera Biopharmaceuticals (NASDAQ: KYTH), Sapphire Energy and Kilimanjaro Energy. These companies have raised more than $800 million and employ more than 350 scientists, engineers and business people."@en . "David, Nathaniel"@en . . . . . . . . "American molecular biologist" . "Nathaniel David"@en . .