Promptfoo

San Francisco, United States

Promptfoo develops software tools that support testing, evaluation, and security analysis of applications built with language models.

$18.4M raised

Jul 2025

Series A

Top Investors

30,000+ verified contacts

Emails, phones & LinkedIn profiles

How much funding has Promptfoo raised?

Promptfoo has raised $18.4M in total funding. The most recent round was Series A. The last funding was announced in July 2025.

Who are Promptfoo's investors?

Promptfoo's investors include Andreessen Horowitz, Insight Venture Management, LLC., Tobias Lütke, Frederic Kerrest, Stanislav Vishnevskiy.

Where is Promptfoo headquartered?

Promptfoo is headquartered in San Francisco, United States.

What does Promptfoo do?

Promptfoo develops software tools that support testing, evaluation, and security analysis of applications built with language models.

What stage is Promptfoo at?

Promptfoo is at the Series A stage.

Cite this page

Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated July 29, 2025.

MLA

"Promptfoo — Funding & Investors." VCBacked, July 29, 2025, https://www.vcbacked.co/company/promptfoo. Accessed July 2, 2026.

APA

VCBacked. (2025). Promptfoo — Funding & Investors. Retrieved July 2, 2026, from https://www.vcbacked.co/company/promptfoo

Wikipedia (cite web)

{{cite web |title=Promptfoo — Funding & Investors |url=https://www.vcbacked.co/company/promptfoo |website=VCBacked |access-date=July 2, 2026}}

Profile data sourced and verified per the VCBacked methodology. Last funding round dated July 29, 2025.