David Tsao Net Worth (Estimated)
CTO at BillionToOne · YC S17
Quick answer
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026.
David Tsao is CTO at BillionToOne (YC S17). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Public
- Education: PhD in Bioengineering from Rice University; Bachelor's in Physics (cum laude) with minors in Biophysics and Engineering & Management Systems from Princeton University.
- Region: United States of America
- Industries: Healthcare, Diagnostics
- Team size: 300
- Website: https://www.billiontoone.com
Who is David Tsao?
David Tsao is the co-founder and CTO of BillionToOne, a precision diagnostics company that develops and offers molecular diagnostic products. He is the original inventor of their molecular counting platform, which enhances cell-free DNA diagnostics.
Highlights:
- Co-founder and CTO of BillionToOne, a Y Combinator S17 alum.
- Original inventor of BillionToOne's molecular counting platform.
- Graduated cum laude from Princeton University and holds a PhD from Rice Universi
About BillionToOne
BillionToOne has developed a DNA molecular counter that increases the cell-free DNA diagnostics resolution by over 1,000 fold, which unlocks transformative improvements in prenatal screening and liquid biopsy for cancers. Unity Screen, BillionToOne's commercially available non-invasive prenatal test (NIPT), is the only NIPT that can assess fetal risk for both recessive conditions and aneuploidies from maternal...
Model inputs
- Stage: public
- Valuation tier: fallback-public
- Valuation note: no_discovery_sources [scale: public leftover raise not used as 10× input]
- Research as-of: 2026-08-04
- Funding input: no public raise amount found; stage fallback valuation
FAQ: David Tsao net worth and BillionToOne valuation
What is David Tsao's net worth?
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.
David Tsao net worth
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. This David Tsao net worth figure is estimated paper wealth, not a verified statement of assets.
How much is David Tsao worth?
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. How much David Tsao is worth here means estimated paper wealth from public company and role data — not financial advice.
How rich is David Tsao?
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. “How rich is David Tsao” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.
David Tsao fortune
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. This David Tsao fortune figure is estimated paper wealth only, not a verified statement of assets.
David Tsao equity value
David Tsao's estimated net worth / paper wealth is $50.0M (range $35.0M–$75.0M) as of 2026. David Tsao equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.
What is BillionToOne valuation?
BillionToOne's estimated valuation on Entrepreneurial Check is $2.0B. Independent model output, not a verified appraisal or official mark.
What is BillionToOne post-money valuation?
BillionToOne's estimated valuation on Entrepreneurial Check is $2.0B. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.
What is BillionToOne funding?
BillionToOne funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much BillionToOne raised is not a complete cap table — figures are estimates only.
How much did BillionToOne raise?
How much BillionToOne raised, when disclosed, informs the estimated BillionToOne valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.
How much money did BillionToOne raise?
How much money BillionToOne raised, when a public figure is available, is a model input for the estimated BillionToOne valuation on this profile. Estimates only — not a complete cap table.
What is BillionToOne series funding?
BillionToOne series funding, when a public raise is disclosed, informs the estimated BillionToOne valuation here. Not a complete financing history.
What company is David Tsao building?
David Tsao is CTO at BillionToOne, a Y Combinator-backed startup (batch S17).
What does BillionToOne do?
BillionToOne — The genetic testing platform detecting and measuring disease.
What YC batch is David Tsao from?
David Tsao is associated with Y Combinator batch S17.
Where did David Tsao go to school?
Public profiles associate David Tsao with PhD in Bioengineering from Rice University; Bachelor's in Physics (cum laude) with minors in Biophysics and Engineering & Management Systems from Princeton University..
What other companies is David Tsao connected to?
Public associations for David Tsao include Northrop Grumman, Groupon, Adku.
Where is David Tsao based?
Public directory data lists David Tsao's region as United States of America.
What industry is David Tsao in?
David Tsao is listed under Healthcare, Diagnostics.
How big is BillionToOne?
Public data lists BillionToOne's team size as 300.
What is BillionToOne's status?
BillionToOne is listed as Public in public company data.
What else is notable about David Tsao?
Original inventor of BillionToOne's molecular counting platform.
Is Entrepreneurial Check affiliated with Y Combinator?
No. Entrepreneurial Check is an independent informational site and is not affiliated with, endorsed by, or sponsored by Y Combinator or the profiled companies.