Nat Turner and Zach Weinberg founded Flatiron Health in 2012 shortly after their first company was acquired by Google. A few years earlier, Nat’s seven-year old cousin Brennan was diagnosed with a rare leukemia. It was during Brennan’s cancer treatment journey when he and Zach first witnessed a fragmented and siloed healthcare system. Nat and Zach started Flatiron in pursuit of an audacious idea: combine some of the best minds in medicine and technology to transform the way cancer is understood and treated.