David Tsao

David Tsao

Y Combinator Logo Batch: S17

Achievements

  • Founded BillionToOne, a biotech startup revolutionizing genetic testing
  • Led BillionToOne to close a $55M Series B funding round
  • Y Combinator alum from the S17 batch, gaining credibility in Silicon Valley
  • Transitioned from aerospace engineering at Northrop Grumman to tech startups
  • Gained experience scaling companies at Groupon and Adku
  • Built tech capable of detecting previously undetectable genetic markers

Real talk about David Tsao

Buckle up for the great process of David Tsao. This guy’s the real deal in the startup world. He jumped into the scene with a serious background, bouncing around from aerospace at Northrop Grumman to big names like Groupon and Adku, but what really put him on the map was BillionToOne.

He’s a YC alum from the S17 batch, so he’s been in the game for a minute, grinding through the trenches of Silicon Valley. That YC badge? Yeah, it’s a big deal, but what’s more impressive is what he’s done with it. BillionToOne, the company he’s most famous for now, is crushing it in genetic testing. They built a platform that’s actually detecting stuff nobody else can, like, significant tech that’s got the possible to shake up healthcare big time.

What’s crazy is, this isn’t some random startup. BillionToOne just closed a $55M Series B, no joke. That kind of cash doesn’t come easy unless you’re onto something real. David’s the guy at the wheel, and his story isn’t just about jumping into startups for fun. The guy’s genuinely fired up about tech that actually makes a difference, especially in biotech and healthcare.

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Before all this, he was in aerospace, which is kinda crazy because it’s a totally different game, but it shows he’s got that engineering mindset, that precision, that drive to build stuff that’s complex but effective. Then he went into tech startups, Groupon, Adku, learning the ropes, understanding how to scale, what customers want, all that gritty hustle.

So, what does this tell us about him? Dude’s super motivated, no bullshit. He’s not just in it for the hustle; he genuinely wants to create something that matters, tech that can save lives or change how we do healthcare forever. His process’s proof that if you got the skills, the grit, and a vision, you can jump from aerospace to biotech and crush it.

Bottom line: David Tsao’s a tech innovator who’s proven he’s got the brains, the hustle, and the vision. He’s out here building companies that actually push the needle, and he’s doing it with that Silicon Valley edge, smart, bold, and not afraid to jump into the deep end. No cap, he’s one to watch.

Founder ID: 106457

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