Twenty

Summary active Updated Jun 22, 2026

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Location Arlington, Virginia
Founded 2024
Latest Stage Series B
Total Raised $138M

Investors

Accel series-b (2026)

Founders

Joe Lin Co-Founder & CEO

About

Twenty is an Arlington, Virginia-based defense-tech startup building AI-enabled offensive cyber warfare systems for the U.S. military and Intelligence Community 12. The company describes itself as America’s first venture-backed cyber warfare startup 1.

Funding History

Date Round Amount Lead Co-investors
2026-06-17 Series B $100M Accel Friends & Family Capital, Point72 Ventures, Caffeinated Capital 12345

The Series B values the company at $1B post-money and brings total funding to approximately $138M 2345.

What Investors Say

“Twenty is the clear leader in this market: the team is unmatched, the mission is urgent and timely, and the company has reached operational relevance at a pace rarely seen in defense technology.”

— Jonathan Turner, Partner at Accel 1

“The company has moved with commercial urgency in one of the government’s most sensitive and consequential mission areas, which is extraordinarily difficult to do.”

— Colin Anderson, Founding Partner at Friends & Family Capital 1

What Founders Say

“This round is extraordinary validation from some of the world’s foremost investors, and we are pouring this funding directly into research and engineering.”

— Joe Lin, Co-Founder & CEO 2

Sources


  1. Twenty press release via PR Newswire, “America’s First VC-Backed Cyber Warfare Startup Raises $100M Series B at $1B Valuation,” June 17, 2026. Accessed June 2026. https://www.prnewswire.com/news-releases/americas-first-vc-backed-cyber-warfare-startup-raises-100m-series-b-at-1b-valuation-302802401.html

  2. GovCon Wire, “Cyber Warfare Startup Twenty Raises $100M in Series B Funding Round,” June 17, 2026. Accessed June 2026. https://www.govconwire.com/articles/twenty-100m-series-b-round-ai-cyber-warfare

  3. The SaaS News, “Twenty Raises $100M Series B,” June 17, 2026. Accessed June 2026. https://www.thesaasnews.com/news/twenty-raises-100m-series-b/

  4. SiliconANGLE, “AI cyber warfare startup Twenty raises $100M at $1B valuation,” June 17, 2026. Accessed June 2026. https://siliconangle.com/2026/06/17/ai-cyber-warfare-startup-twenty-raises-100m-1b-valuation/

  5. The Next Web, “Twenty: cyber warfare startup hits $1bn on $100M raise,” June 17, 2026. Accessed June 2026. https://thenextweb.com/news/a-startup-that-builds-offensive-cyber-weapons-just-became-a-1bn-unicorn