Stuart Johnstone Net Worth (Estimated)
Founder at Stralis Aircraft · YC W23
Quick answer
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026.
Stuart Johnstone is Founder at Stralis Aircraft (YC W23). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: Australia
- Industries: Industrials, Aviation and Space
- Team size: 4
- Website: https://stralis.aero/
Who is Stuart Johnstone?
Stuart Johnstone is a founder of Stralis Aircraft, which was part of Y Combinator's Winter 2023 batch.
Highlights:
- Y Combinator W23
- Stralis Aircraft
About Stralis Aircraft
Our planes fly 10 times further than battery electric alternatives, with a lower operating cost than fossil fuel powered aircraft. Our first product is a 15 seat aircraft with a range of 800 km that enters service in 2026 with launch customer Skytrans. Our team has over 85 years of aerospace experience and have developed, flight tested and certified aircraft at Google X, magniX, Heart Aerospace, Ampaire, Airbus,...
Model inputs
- Stage: seed
- Valuation tier: fallback-seed
- Valuation note: no_discovery_sources [scale: $500k-class amount looked like a YC check, not a published seed]
- Research as-of: 2026-08-04
- Funding input: no public raise amount found; stage fallback valuation
FAQ: Stuart Johnstone net worth and Stralis Aircraft valuation
What is Stuart Johnstone's net worth?
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.
Stuart Johnstone net worth
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. This Stuart Johnstone net worth figure is estimated paper wealth, not a verified statement of assets.
How much is Stuart Johnstone worth?
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. How much Stuart Johnstone is worth here means estimated paper wealth from public company and role data — not financial advice.
How rich is Stuart Johnstone?
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. “How rich is Stuart Johnstone” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.
Stuart Johnstone fortune
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. This Stuart Johnstone fortune figure is estimated paper wealth only, not a verified statement of assets.
Stuart Johnstone equity value
Stuart Johnstone's estimated net worth / paper wealth is $10.0M (range $7.0M–$15.0M) as of 2026. Stuart Johnstone equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.
What is Stralis Aircraft valuation?
Stralis Aircraft's estimated valuation on Entrepreneurial Check is $20.0M. Independent model output, not a verified appraisal or official mark.
What is Stralis Aircraft post-money valuation?
Stralis Aircraft's estimated valuation on Entrepreneurial Check is $20.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.
What is Stralis Aircraft funding?
Stralis Aircraft funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much Stralis Aircraft raised is not a complete cap table — figures are estimates only.
How much did Stralis Aircraft raise?
How much Stralis Aircraft raised, when disclosed, informs the estimated Stralis Aircraft valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.
How much money did Stralis Aircraft raise?
How much money Stralis Aircraft raised, when a public figure is available, is a model input for the estimated Stralis Aircraft valuation on this profile. Estimates only — not a complete cap table.
What is Stralis Aircraft series funding?
Stralis Aircraft series funding, when a public raise is disclosed, informs the estimated Stralis Aircraft valuation here. Not a complete financing history.
What company is Stuart Johnstone building?
Stuart Johnstone is Founder at Stralis Aircraft, a Y Combinator-backed startup (batch W23).
What does Stralis Aircraft do?
Stralis Aircraft — Emission free hydrogen electric aircraft
What YC batch is Stuart Johnstone from?
Stuart Johnstone is associated with Y Combinator batch W23.
Where is Stuart Johnstone based?
Public directory data lists Stuart Johnstone's region as Australia.
What industry is Stuart Johnstone in?
Stuart Johnstone is listed under Industrials, Aviation and Space.
How big is Stralis Aircraft?
Public data lists Stralis Aircraft's team size as 4.
What else is notable about Stuart Johnstone?
Y Combinator W23.
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.