Cyber warfare startup Twenty raises $100M at $1B valuation
What's the deal? Twenty, a startup that builds AI-powered offensive cyber weapons for US agencies, has raised a $100M Series B led by Accel, valuing the company at $1B. Point72 VenturesDealroom has a profile for this one. Try Dealroom →, Caffeinated Capital, and Friends & Family CapitalDealroom has a profile for this one. Try Dealroom → also participated. The round brings Twenty's total funding to $138M.
The company was founded by Joe LinDealroom has a profile for this one. Try Dealroom →, Leo Olson, and Pete SorrentinoDealroom has a profile for this one. Try Dealroom →, all veterans of Expanse's national security division, which was acquired by Palo Alto Networks. Lin frequently testifies before Congress on US cyber strategy.
Why now? Twenty's chief executive argues that deterrence in cyberspace only works when adversaries face "credible consequences." He points to Chinese pre-positioning on US infrastructure and Russian cyber activity around the war in Ukraine as proof the threat is escalating.
"For the first time, you're seeing an administration call for offensive cyber to be a national priority," Lin said. The Trump administration has signalled this shift across its national security tech agenda, creating a tailwind for companies like Twenty.
Accel said the need for this capability came through clearly during diligence, calling Twenty "the first call when the government needs help." The firm noted that Twenty has "caught fire with incredible momentum" in a market known for slow procurement.
What could go wrong? A venture-funded company building machine-speed offensive cyber tools is exactly the kind of thing that used to live quietly inside governments. Doing it at startup pace, for profit, raises questions about escalation, oversight, and who decides when a privately built capability gets deployed.
For now, those questions sit behind undisclosed contracts and deliberately vague descriptions of what the software does.
The signal: Most cybersecurity startups sell defence — detecting intrusions, patching holes. Twenty openly sells attack, and investors just valued that at $1B. It suggests "cyber warfare" is no longer a phrase the venture world avoids; it is one that can anchor a unicorn valuation.
Twenty's $38M Series A in November 2025 drew In-Q-Tel, the CIA-linked fund. Its team includes veterans of US Cyber Command and the NSA. The progression from government-adjacent seed capital to a top-tier venture firm leading a $100M round signals that offence-focused cyber is becoming a mainstream investment category.
Read more: Accel · The Next Web · Tech Funding News
