Qumulo CEO Bill Richter. Photo credit: Qumulo

Qumulo, a Seattle-based data storage startup, has raised $125 million in Series E funding that values it at roughly $1.2 billion. The funding was led by investment firm BlackRock, with participation from the likes of Kleiner Perkins, Madrona Venture Group, Highland Capital Partners, and Amity Ventures. The new funding adds up the total amount that Qumulo has raised since its inception to $351 million. Qumulo will use the new funding to accelerate its operations.

Qumulo develops software that helps enterprises to manage and curate large amounts of data. The company was founded in 2012 by alumni of Isilon, a data storage company that was acquired by EMC. Isilon was a publicly-traded company prior to being acquired. Qumulo is led by CEO Bill Richter, a former CFO of Isilon and also a former finance executive at Amazon.