F4

San Francisco, United States

F4 is an industrial hardware design validation platform that focuses on engineering drawing compliance and interpretations.

$500K raised

Sep 2025

Pre-Seed

Top Investors

Y Combinator

19,000+ verified contacts

Emails, phones & LinkedIn profiles

How much funding has F4 raised?

F4 has raised $500K in total funding. The most recent round was Pre-Seed. The last funding was announced in September 2025.

Who are F4's investors?

F4's investors include Y Combinator.

Where is F4 headquartered?

F4 is headquartered in San Francisco, United States.

What does F4 do?

F4 is an industrial hardware design validation platform that focuses on engineering drawing compliance and interpretations.

What stage is F4 at?

F4 is at the Pre-Seed stage.

Cite this page

Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated September 9, 2025.

MLA

"F4 — Funding & Investors." VCBacked, September 9, 2025, https://www.vcbacked.co/company/f4. Accessed June 8, 2026.

APA

VCBacked. (2025). F4 — Funding & Investors. Retrieved June 8, 2026, from https://www.vcbacked.co/company/f4

Wikipedia (cite web)

{{cite web |title=F4 — Funding & Investors |url=https://www.vcbacked.co/company/f4 |website=VCBacked |access-date=June 8, 2026}}

Profile data sourced and verified per the VCBacked methodology. Last funding round dated September 9, 2025.