Gray Swan
Pittsburgh, US · Founded 2023 · 88 employees on LinkedIn · 9 known investors
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Gray Swan provides automated adversarial testing and runtime AI security solutions for enterprises and AI labs deploying large language models. The company maintains a red teaming network to identify vulnerabilities and protect AI systems in production.
Founders & leadership
Gray Swan was founded in 2023 by Jeremy Kolter, Matthew Fredrikson, and Jiaming Zou.
Investors · 9
How we know: Juniper Ventures Management, Llc's portfolio page · Not right? Tell us
How we know: Madrona Venture Group's portfolio page · a partner's Signal profile · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: fintech.global · samsungnext.com · Not right? Tell us
How we know: Wing's portfolio page · a partner's Signal profile · fintech.global · open dataset · 5k.vc investor directory · Not right? Tell us
Also in the syndicate · 2
Funding
SEC filings, press & company announcements$85.7M disclosed across 4 rounds · 2024–2026
- $40MSeries AJun 2026 · 3 sources
Madrona (lead), Wing Venture Capital (lead), Hudson River Trading, Magarac Venture Partners, Obvious Ventures, Samsung Next, Snowflake Ventures
Source ↗ - $40MSeries AMay 2026 · 2 sourcesSource ↗
▶$5.5MraisedMay 2024 · 1 investors · Other TechnologyRule 506(b)
- Matthew FredriksonExecutive Officer, Director, Promoter
- Jiaming ZouExecutive Officer, Director, Promoter
- Jeremy KolterExecutive Officer, Director, Promoter
- Offering amount
- $5.5M
- Amount sold
- $5.5M
- Proceeds to insiders
- $350K
- First sale
- May 2024
- Incorporated
- Corporation, Delaware, 2023
- Federal exemptions
- 06b
▶$180KraisedMar 2024 · 4 investors · Other TechnologyRule 506(b)
- Jeremy KolterExecutive Officer, Director, Promoter
- Matthew FredriksonExecutive Officer, Director, Promoter
- Jiaming ZouExecutive Officer, Director, Promoter
- Offering amount
- $1M
- Amount sold
- $180K
- First sale
- Mar 2024
- Incorporated
- Corporation, Delaware, 2023
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
2 people who came through Gray Swan went on to found or lead other companies.
Related companies · 2
Companies working in the same space as Gray Swan.
In the news
Frequently asked questions
- What does Gray Swan do?
- Gray Swan provides automated adversarial testing and runtime AI security solutions for enterprises and AI labs deploying large language models. The company maintains a red teaming network to identify vulnerabilities and protect AI systems in production.
- Who founded Gray Swan?
- Gray Swan was founded by Jeremy Kolter, Matthew Fredrikson, Jiaming Zou in 2023.
- Who are Gray Swan's investors?
- Gray Swan's investors include Juniper Ventures Management, Llc, Madrona Venture Group, Samsung Next, Wing, Magarac Venture Partners, Obvious Ventures, Snowflake Ventures.
- How much funding has Gray Swan raised?
- Gray Swan has disclosed $85.7M raised across 4 rounds.
- Where is Gray Swan headquartered?
- Gray Swan is headquartered in Pittsburgh, US.






