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F4 Industries

The GD&T Analysis Platform for Engineering Drawings

About

GD&T takes years to master. Engineers must encode their design intent into a dense syntax that manufacturers must decode, and not everyone gets it right.

Put ten engineers in front of the same drawing and you may get ten different interpretations. Which means errors often surface later in interface stack-ups, manufacturing, or in the field - when they’re far more expensive to fix.

That’s why we built F4 - the platform that analyzes GD&T to determine whether your designs are ready for production.

Drop in your drawing and 3D file. F4 analyzes every element of your GD&T to assess whether your design is clear, manufacturable, and production ready. To make the drawing easier to understand, engineers can visualize their datums, reference frames, and tolerance zones directly on the 3D model. F4 also calculates tolerance stack-ups instantly - directly from the drawing. What once took hours of manual work now takes seconds.

When issues are found, F4 flags them and guides engineers toward resolving the problem.

After analyzing your drawing, F4 also automatically generates design and inspection reports - stack-up tables, FAI reports - ready to share with your team.

And it does all of this locally on-device with no AI used for analysis. Producing deterministic results engineers can trust.

Topics

Location
San Francisco, CA, United States
Team size
5 employees
YC batch
Summer 2025
Status
Active
Stage
Early stage

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Questions and answers

What does F4 Industries do?

The GD&T Analysis Platform for Engineering Drawings

Where is F4 Industries based?

San Francisco, CA, United States

How many people work at F4 Industries?

5 employees, according to the company profile.

Has F4 Industries raised money?

There are no funding rounds for F4 Industries in our data.

What are the alternatives to F4 Industries?

Similar startups: Cascade Space, Vendra, and Applied Electrodynamics, Inc.