Artificial intelligence is rapidly reshaping cybersecurity, and growing investor interest is fueling a new wave of startups focused on defending against increasingly automated cyber threats.
Tenex.ai has secured $250 million in fresh funding, reaching a valuation of more than $1 billion. The Tenex AI cybersecurity funding round highlights rising demand for solutions that use artificial intelligence to detect and respond to modern cyberattacks.
The investment was led by Crosspoint Capital, with participation from Shield Capital and DeepWork Capital. The Sarasota based startup had previously attracted backing from Andreessen Horowitz, underscoring strong confidence from major investors in the AI security space.
The Tenex AI cybersecurity funding comes amid heightened activity in the sector, as enterprises seek advanced tools to counter attackers who are also leveraging AI. Industry momentum has been reinforced by recent developments such as OpenAI agreeing to acquire Promptfoo, alongside new AI driven security agents introduced by OpenAI and Anthropic to help identify vulnerabilities in large scale systems.
Founded by former chief information security officers and financial services professionals, Tenex delivers an AI enabled managed detection and response platform. Its technology is designed to identify, track, and remove active threats in real time. The solution combines AI automation and intelligent agents with human expertise, reflecting a hybrid model that is becoming increasingly common in enterprise cybersecurity.
Tenex has also established partnerships with major cloud providers, including Google, Microsoft, and Amazon, enabling it to integrate and deliver security capabilities across large scale cloud ecosystems.
“We basically believe that the market is going towards the hyperscalers as the security platform winners,” said Tenex Chief Executive Officer Eric Foster, referring to the large cloud providers. “We believe we are best positioned to be the services partner and especially the AI services partner to them.”
Unlike some AI security vendors that focus on testing and identifying vulnerabilities in code, Tenex is targeting real time threat detection and response, aiming to actively remove attackers from compromised environments.
“The AI security space has become a gold rush,” Foster said. “We all correctly identify that this is one of the most obvious and provably return-driving uses of artificial intelligence in the enterprise. This is toil and drudgery that’s highly data-driven that the AI can actually make a really strong difference on.”
Industry experts note that scaling cybersecurity services has traditionally required significant staffing due to the complexity of enterprise environments. Greg Clark, managing partner at Crosspoint and former CEO of Symantec, highlighted how AI is transforming this dynamic.
“Artificial intelligence and the ability to automate security operations changes that game completely,” he said.
Tenex currently employs nearly 100 people and plans to expand its workforce to 300 by 2026. The company also announced the appointment of Bashar Abouseido, former chief information security officer at Charles Schwab, as president.
As the Tenex AI cybersecurity funding accelerates growth, it underscores a broader industry shift toward AI driven security operations, where automation, scalability, and real time threat response are becoming essential for defending modern digital infrastructure.
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