Twenty Raises $100M Series B at $1B -- America's First VC-Backed Cyber-Warfare Startup

Arlington-based Twenty raised a $100M Series B at a $1B valuation to build AI-enabled offensive cyber systems for US military and intelligence customers. It's a rare unicorn-on-Series-B in defense tech and a clean signal that offensive cyber is now a venture category.

$100M
Raised
$1B
Valuation
Series B
Stage
Arlington, VA
HQ
TC
Trace Cohen
Early-stage VC & angel ยท Founder, New York Venture Partners
June 17, 2026
1 min read
KEY TAKEAWAYS FOR VCs & FOUNDERS
1

Defense tech keeps minting billion-dollar valuations -- the Anduril playbook is spreading to offensive cyber

2

VCs are now openly funding offensive, not just defensive, security -- a notable shift in what's investable

TC
The VC Read ยท Trace's TakeTrace Cohen

The line VCs wouldn't cross five years ago -- funding offensive, not just defensive, cyber -- is now a $1B Series B. That's the Anduril effect fully metastasized: defense-tech is a venture category, and the buyers have budgets no commercial market can match. The risk founders underrate is concentration -- when your customer is the US government, your TAM is huge but your sales cycle and political exposure are brutal. Watch whether dual-use commercial revenue ever shows up, or if this stays a pure-gov play.

Twenty, an Arlington, Virginia-based startup billing itself as America's first VC-backed cyber-warfare company, raised a $100 million Series B at a $1 billion valuation. The company builds AI-enabled offensive cyber systems for US military and intelligence customers -- a category that until recently lived inside government contractors and classified programs, not venture portfolios.

The round is part of the broader defense-tech wave that Anduril and Palantir normalized: well-funded, software-first companies selling directly to the national-security apparatus, valued like growth-stage tech rather than legacy primes. A billion-dollar mark at Series B for an offensive-cyber company shows how far investor appetite for dual-use and defense has expanded.

โ€œTwenty, an Arlington, Virginia-based startup billing itself as America's first VC-backed cyber-warfare company, raised a $100 million Series B at a $1 billion valuation.โ€

For founders, Twenty is a marker of where defense capital is flowing next. The first wave funded autonomy, sensing, and hardware; offensive cyber is the new frontier, and the buyers -- DoD and the intelligence community -- have budgets that dwarf most commercial markets.

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Originally reported by PR Newswire. Analysis and editorial commentary by Value Add Pulse.

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