Mason Chilmonczyk Net Worth (Estimated)
Founder at Andson Biotech · YC W22
Quick answer
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026.
Mason Chilmonczyk is Founder at Andson Biotech (YC W22). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Education: Bachelor of Science in Bioengineering from University of California, Berkeley
- Region: United States of America
- Industries: Healthcare
- Team size: 4
- Website: http://www.andsonbiotech.com
Who is Mason Chilmonczyk?
Mason Chilmonczyk is a founder at Andson Biotech, which was part of Y Combinator's Winter 2022 cohort.
Highlights:
- University of California, Berkeley
- Y Combinator
- Andson Biotech
About Andson Biotech
Andson Biotech helps pharmaceutical companies measure difficult to detect chemicals that they need to measure while developing and manufacturing drugs like cell-therapies or biologics. Drug companies want to use our technologies to get fast and accurate chemical measurements they do thousands of times per day for drug development and quality control.
Model inputs
- Stage: seed
- Valuation tier: arr-multiple
- Funding input: reported raise $4.7M
- ARR input: $1.8M
- Valuation note: YC W22 andsonbiotech.com (Chilmonczyk). Lock the first-party $4.7M close, not the $5.0M headline or the 2024 $3.6M seed as the latest figure.
- Research as-of: 2026-09-14
- Funding source: https://andsonbiotech.com/andson-biotech-secures-5-0m-in-funding-to-accelerate-commercialization-expand-product-portfolio/
FAQ: Mason Chilmonczyk net worth and Andson Biotech valuation
What is Mason Chilmonczyk's net worth?
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.
Mason Chilmonczyk net worth
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. This Mason Chilmonczyk net worth figure is estimated paper wealth, not a verified statement of assets.
How much is Mason Chilmonczyk worth?
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. How much Mason Chilmonczyk is worth here means estimated paper wealth from public company and role data — not financial advice.
How rich is Mason Chilmonczyk?
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. “How rich is Mason Chilmonczyk” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.
Mason Chilmonczyk fortune
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. This Mason Chilmonczyk fortune figure is estimated paper wealth only, not a verified statement of assets.
Mason Chilmonczyk equity value
Mason Chilmonczyk's estimated net worth / paper wealth is $18.0M (range $12.6M–$27.0M) as of 2026. Mason Chilmonczyk equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.
What is Andson Biotech valuation?
Andson Biotech's estimated valuation on Entrepreneurial Check is $18.0M. Independent model output, not a verified appraisal or official mark.
What is Andson Biotech post-money valuation?
Andson Biotech's estimated valuation on Entrepreneurial Check is $18.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.
What is Andson Biotech funding?
Andson Biotech funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much Andson Biotech raised is not a complete cap table — figures are estimates only.
How much did Andson Biotech raise?
How much Andson Biotech raised, when disclosed, informs the estimated Andson Biotech valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.
How much money did Andson Biotech raise?
How much money Andson Biotech raised, when a public figure is available, is a model input for the estimated Andson Biotech valuation on this profile. Estimates only — not a complete cap table.
What is Andson Biotech series funding?
Andson Biotech series funding, when a public raise is disclosed, informs the estimated Andson Biotech valuation here. Not a complete financing history.
What company is Mason Chilmonczyk building?
Mason Chilmonczyk is Founder at Andson Biotech, a Y Combinator-backed startup (batch W22).
What does Andson Biotech do?
Andson Biotech — Empowering Mass Spec for Biotech and Beyond
What YC batch is Mason Chilmonczyk from?
Mason Chilmonczyk is associated with Y Combinator batch W22.
Where did Mason Chilmonczyk go to school?
Public profiles associate Mason Chilmonczyk with Bachelor of Science in Bioengineering from University of California, Berkeley.
Where is Mason Chilmonczyk based?
Public directory data lists Mason Chilmonczyk's region as United States of America.
What industry is Mason Chilmonczyk in?
Mason Chilmonczyk is listed under Healthcare.
How big is Andson Biotech?
Public data lists Andson Biotech's team size as 4.
What else is notable about Mason Chilmonczyk?
University of California, Berkeley.
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.