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Sebastian Fischer estimated net worth profile

Sebastian Fischer net worth

Sebastian Fischer Net Worth 2026 (Estimated) · CEO at Wardstone · YC F25
est. wealth $3.0M

Quick answer

Sebastian Fischer's estimated net worth is $3.0M (range $2.1M – $4.5M) as of 2026. Sebastian Fischer is CEO at Wardstone. Wardstone valuation.

Sebastian Fischer is CEO at Wardstone (YC F25). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameSebastian Fischer
RoleCEO
CompanyWardstone
YC batchF25
Est. company val$5.0M
Assumed ownership60%
Est. paper wealth / net worth$3.0M
$2.1M – $4.5M
  • Company status: Active
  • Region: United States of America
  • Industries: Industrials, Aviation and Space
  • Team size: 8
  • Website: https://www.wardstone.us

Who is Sebastian Fischer?

Sebastian Fischer is a co-founder of Wardstone, a startup featured in Y Combinator's Summer 2025 batch.

Highlights:

  • Studied at a leading university
  • Worked at notable tech firms
  • Participated in Y Combinator

About Wardstone

Wardstone builds a low-cost, modular interceptor platform for air and missile defense. Our platform enables the warfighter to right sizes their interceptors against the threat. This allows us to defeat air-breathing and ballistic missile threats at a fraction of the cost of exquisite interceptors, adding affordable magazine depth to existing air defense systems.

FAQ: Sebastian Fischer net worth and Wardstone valuation

What is Sebastian Fischer's net worth?

Sebastian Fischer's estimated net worth is $3.0M (range $2.1M – $4.5M) as of 2026. Sebastian Fischer is CEO at Wardstone. 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 Wardstone valuation?

Wardstone's estimated valuation on Entrepreneurial Check is $5.0M. 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 Sebastian Fischer's role?

Sebastian Fischer is CEO at Wardstone, a Y Combinator-backed startup (batch F25).