---
title: "Gray Swan's $40M Series A: The AI Security Firm Trusted by Every Frontier Lab"
description: "Pittsburgh's Gray Swan raised a $40M Series A in May 2026, co-led by Wing and Madrona, to secure AI models and agents for OpenAI, Anthropic, Meta, and enterprises."
date: 2026-05-28T00:00:00.000Z
tags: ["2026-vc-news", "startup-funding", "venture-capital", "cybersecurity", "ai-infrastructure"]
source: https://venturecapitaltracker.com/2026-gray-swan-40m-series-a-ai-security
---

# Gray Swan's $40M Series A: The AI Security Firm Trusted by Every Frontier Lab

> Pittsburgh's Gray Swan raised a $40M Series A in May 2026, co-led by Wing and Madrona, to secure AI models and agents for OpenAI, Anthropic, Meta, and enterprises.

Gray Swan's **$40M Series A** in May 2026 backs a startup with a rare moat: its AI red-teaming is **embedded in the pre-release safety evaluations of OpenAI, Anthropic, and Meta.** When the frontier labs trust your security, enterprises follow.

### The problem this startup is attacking
AI models and agents behave in unintended ways — prompt injection, data exfiltration, compliance failures. Gray Swan finds these vulnerabilities before deployment and blocks them at runtime.

### Why this is a live problem now
- AI adoption is outpacing AI security.
- Agents acting autonomously multiply the attack surface.
- Enterprises want frontier-lab-grade security to deploy with confidence.

### Competitive map
- **Cyera** and data-security platforms (the "trust layer").
- AI-guardrail and LLM-firewall startups.
- In-house safety teams at large labs.

### Market signal (the number to remember)
- **Born from Carnegie Mellon's AI-safety research** (CEO Matt Fredrikson, chief scientist Zico Kolter), Gray Swan serves 20+ global enterprises and generates 1M+ real-world attack trajectories via its Arena community. A Snowflake partnership brings the same security to enterprise data platforms.

### Practical takeaway (operator + investor)
Gray Swan shows the strongest AI-security wedge is **credibility with the frontier labs.** Founders should pursue design-partner relationships that become distribution; investors should prize defensible threat-intelligence data and research pedigree.

### Sources
1. Gray Swan (Series A announcement): https://www.grayswan.ai/news/gray-swan-announces-series-a
2. Technical.ly (Gray Swan $40M): https://technical.ly/entrepreneurship/gray-swan-ai-security-40m-series-a/
3. FinSMEs (Gray Swan $40M Series A): https://www.finsmes.com/2026/06/gray-swan-raises-40m-in-series-a-funding.html