PromptArmor
Last verified 2026-06-13. JSON
The funding figures on this page are attributed, not sourced: a publisher is on record but no document URL is. How we mark provenance.
| Total raised | $1.0Mattributed |
|---|---|
| Latest round | seed, $1.0M, 2024-01-01attributed |
| Founded | 2023 |
| Headquarters | San Francisco, CA |
| Industry | cybersecurity |
| Stage | seed |
| Website | promptarmor.com |
PromptArmor is an AI-risk assessment platform that surfaces prompt-injection, data-leak, and model-supply-chain risks across third-party and internal AI tools. It serves InfoSec, GRC, privacy, and legal teams at Fortune 50 and AmLaw 50 firms managing AI rollouts. Its scoring covers 26 risk vectors mapped to OWASP LLM Top 10, NIST AI RMF, and MITRE ATLAS, where most AI-security competitors still ship single-purpose firewalls.
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2024-01-01 | seed | $1.0M | undisclosed |
Detected tech stack
doubleclick floodlight, framer sites, google analytics, google tag manager, hsts, http/3, mysql, php, react 16.13.1, web-vitals, wordpress
Provenance
| Fact | Status | Basis |
|---|---|---|
| Seed, $1.0M | attributed | yc named as publisher. No document URL on file. |
| Total raised $1.0M | attributed | yc named as publisher. No document URL on file. |
| Company existence | sourced | Y Combinator named as publisher. Document, retrieved 2026-09-17. |
| Description | self-reported | promptarmor.com, read 2026-06-13 |
Change history
| Date | Fact | Change | Basis |
|---|---|---|---|
| 2026-09-24Existence: self-reported → sourced, Y Combinator, document, retrieved 2026-09-17 | Existence | self-reported → sourced | Y Combinator, document, retrieved 2026-09-17 |
Records begin 2026-09-24. All changes