Why This Bay Area Heart Software Biotech Could Become Silicon Valley’s Newest Unicorn

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HeartFlow makes software that builds a 3D model of your heart’s arteries, based on CT scans.

Redwood City-based medical software startup HeartFlow is on the hunt for a $150 million Series E round of funding, which would push the company’s private valuation above $1 billion, according to a new regulatory filing first spotted by PitchBook.

The company was founded 10 years ago by a Stanford University professor and the former head of vascular surgery at Stanford University Medical Center and has raised $227 million to date.

HeartFlow makes software that builds a 3D model of your heart’s arteries, based on CT scans.

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