Franck Lahaye Net Worth (Estimated)

Who is Franck Lahaye?

Franck Lahaye is a co-founder of Airthium, a startup that participates in Y Combinator's Summer 2017 batch.

Highlights:

• ESCP Business School
• Lille Catholic University
• Alstom

About Airthium

We build engines that have the potential to slash 33% or worldwide CO2 emissions - cost-effectively.

First, we help food and mining companies cut both their heat costs *and* CO2 emissions by replacing gas-fired steam boilers with our proprietary high temperature heat pumps. Our heat pumps make up to 3x more heat with the same amount of electricity, even at up to 1000°F.

Once the heat pump market is mature, we...

Model inputs

• Stage: crowdfunding
• Valuation tier: raise-10x
• Funding input: reported raise $134K
• Valuation note: Cleared Caplight May-2024 estimate $21M; Jun 2026 crowdfunding $134K undisclosed val.
• Research as-of: 2026-08-01
• Funding source: https://www.caplight.com/companies/airthium

FAQ: Franck Lahaye net worth and Airthium valuation

What is Franck Lahaye's net worth?

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Franck Lahaye net worth

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. This Franck Lahaye net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Franck Lahaye worth?

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. How much Franck Lahaye is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Franck Lahaye?

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. “How rich is Franck Lahaye” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Franck Lahaye fortune

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. This Franck Lahaye fortune figure is estimated paper wealth only, not a verified statement of assets.

Franck Lahaye equity value

Franck Lahaye's estimated net worth / paper wealth is $469K (range $328K–$704K) as of 2026. Franck Lahaye equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Airthium valuation?

Airthium's estimated valuation on Entrepreneurial Check is $1.3M. Independent model output, not a verified appraisal or official mark.

What is Airthium post-money valuation?

Airthium's estimated valuation on Entrepreneurial Check is $1.3M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Airthium funding?

Airthium funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much Airthium raised is not a complete cap table — figures are estimates only.

How much did Airthium raise?

How much Airthium raised, when disclosed, informs the estimated Airthium valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.

How much money did Airthium raise?

How much money Airthium raised, when a public figure is available, is a model input for the estimated Airthium valuation on this profile. Estimates only — not a complete cap table.

What is Airthium series funding?

Airthium series funding, when a public raise is disclosed, informs the estimated Airthium valuation here. Not a complete financing history.

What company is Franck Lahaye building?

Franck Lahaye is Co-Founder at Airthium, a Y Combinator-backed startup (batch S17).

What does Airthium do?

Airthium — Decarbonized heat and power cheaper than fossil fuels

What YC batch is Franck Lahaye from?

Franck Lahaye is associated with Y Combinator batch S17.

Where did Franck Lahaye go to school?

Public profiles associate Franck Lahaye with ESCP Business School.

What other companies is Franck Lahaye connected to?

Public associations for Franck Lahaye include Airthium, Alstom.

Where is Franck Lahaye based?

Public directory data lists Franck Lahaye's region as United States of America.

What industry is Franck Lahaye in?

Franck Lahaye is listed under Industrials, Climate.

How big is Airthium?

Public data lists Airthium's team size as 18.

What else is notable about Franck Lahaye?

ESCP Business School.

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.