Antoine Hersen net worth

Who is Antoine Hersen?

Antoine Hersen co-founded PlanGrid in 2011, a construction tech startup that was part of Y Combinator's Winter 2012 batch. He passed away at the age of 29 shortly after the company's YC acceptance.

Highlights:

• Worked as a rendering engineer at Pixar Animation Studios
• Co-founded PlanGrid (YC W12)
• Known as PlanGrid's 'Chief Mad Scientist'

Background

He passed away in January 2012 at his home in France due to a rare form of cancer. Heritage/background labels may be inferred and are not verified identity documents.

About PlanGrid

PlanGrid is the leader in construction productivity software, used on more than one million projects in 84 countries. PlanGrid's cloud-based platform empowers contractors and owners in commercial, heavy civil, and other industries to collaborate easily from their mobile devices and desktop, managing blueprints, specs, photos, RFIs, field reports, and punch lists. With over 100 million digital blueprints on its...

FAQ: Antoine Hersen net worth and PlanGrid valuation

What is Antoine Hersen's net worth?

Antoine Hersen's estimated net worth is $7.5M (range $5.25M – $11.25M) as of 2026. Antoine Hersen is Founder at PlanGrid. 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 PlanGrid valuation?

PlanGrid's estimated valuation on Entrepreneurial Check is $100.0M. 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 Antoine Hersen's role?

Antoine Hersen is Founder at PlanGrid, a Y Combinator-backed startup (batch W12).