F4 Industries
YC S25San Francisco, US · Founded 2025 · 5 employees · 2 known investors
F4 is a platform for analyzing, validating, and visualizing GD&T (geometric dimensioning and tolerancing) in engineering drawings. It serves industrial teams including manufacturers, aerospace, and defense organizations by automating the interpretation of design files from CAD platforms and generating compliance reports.
Also known as F4
Founders & leadership· Y Combinator alumni (S25)
F4 Industries was founded in 2025 by Paul Shin and Aidan Cantu.
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Paul Shinin𝕏CEO & Co-FounderHe previously worked as a mechanical design engineer at Tesla, where he oversaw multiple CyberCab and SEMI production components and managed the global drive unit heat exchanger program. Earlier, he conducted research in liquid-bipropellant rocketry at the University of Arizona and UC Berkeley.
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Aidan Cantuin𝕏Co-founder · Chief Technology OfficerPreviously, he worked as an avionics test engineer at SpaceX, where he focused on hardware design for engine testing. He holds dual degrees in electrical engineering along with minors in computer science and mathematics.
Investors · 2
In the news
Frequently asked questions
- What does F4 Industries do?
- F4 is a platform for analyzing, validating, and visualizing GD&T (geometric dimensioning and tolerancing) in engineering drawings. It serves industrial teams including manufacturers, aerospace, and defense organizations by automating the interpretation of design files from CAD platforms and generating compliance reports.
- Who founded F4 Industries?
- F4 Industries was founded by Paul Shin, Aidan Cantu in 2025.
- Who are F4 Industries's investors?
- F4 Industries's investors include Y Combinator, 468 Capital.
- Where is F4 Industries headquartered?
- F4 Industries is headquartered in San Francisco, US.