F4

F4 Industries

YC S25

San Francisco, US · Founded 2025 · 5 employees · 2 known investors

f4.dev ↗

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.

Founders & leadership· Y Combinator alumni (S25)

PS

Paul Shinin𝕏Founder

AC

Aidan Cantuin𝕏CTO & Co-Founder

Investors · 2

Y

Y CombinatorSan Francisco · $500K

46

468 CapitalreportedBerlin