Twenty Inc. has raised $100 million in Series B funding, reaching a $1 billion valuation. Accel led the round with participation from Friends & Family Capital, Point72 Ventures, and Caffeinated Capital. The capital will finance research and development for the defense startup’s artificial intelligence platforms.
Founded in 2024 by former public sector experts and Palo Alto Networks veterans, Twenty develops cyber warfare software for the U.S. military and intelligence community. CEO Joe Lin states the company is building the industrial base for American cyber power. The platform uses AI to automate tasks that typically require weeks of manual labor while keeping human judgment central to operations.
This investment arrives as AI models demonstrate growing offensive cybersecurity capabilities. While frontier models like Anthropic’s Claude Mythos can identify and exploit thousands of vulnerabilities, Twenty focuses on specialized defense applications rather than general-purpose algorithms. The total funding to date stands at $138 million.