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Zlatko Jončev estimated net worth profile

Zlatko Jončev net worth

Zlatko Jončev Net Worth 2026 (Estimated) · Founder at b12 Labs · YC S25
est. wealth $10.0M

Quick answer

Zlatko Jončev's estimated net worth is $10.0M (range $7.0M – $15.0M) as of 2026. Zlatko Jončev is Founder at b12 Labs. b12 Labs valuation.

Zlatko Jončev is Founder at b12 Labs (YC S25). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameZlatko Jončev
RoleFounder
Companyb12 Labs
YC batchS25
Est. company val$20.0M
Assumed ownership50%
Est. paper wealth / net worth$10.0M
$7.0M – $15.0M
  • Company status: Active
  • Region: United States of America
  • Industries: Healthcare, Drug Discovery and Delivery
  • Team size: 3
  • Website: https://b12-labs.com/

Who is Zlatko Jončev?

Zlatko Jončev is a founder at B12 Labs, which was part of Y Combinator's S25 batch.

Highlights:

  • Y Combinator S25
  • B12 Labs

About b12 Labs

b12 makes high-value molecules that are otherwise hard to make. We help pharma companies plan and make new drugs, accelerating early-stage drug discovery from years to months.

Andres built the first AI agent that can autonomously think and make molecules in a robotic lab, published in Nature Machine Intelligence (1000+ citations), and won the best paper award at the NeurIPS AI for Science conference. Zlatko is a...

FAQ: Zlatko Jončev net worth and b12 Labs valuation

What is Zlatko Jončev's net worth?

Zlatko Jončev's estimated net worth is $10.0M (range $7.0M – $15.0M) as of 2026. Zlatko Jončev is Founder at b12 Labs. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.

What is b12 Labs valuation?

b12 Labs's estimated valuation on Entrepreneurial Check is $20.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.

What is Zlatko Jončev's role?

Zlatko Jončev is Founder at b12 Labs, a Y Combinator-backed startup (batch S25).