American cybersecurity company Tenable is buying Israeli startup Apex Security for more than $105 million, according to Calcalist. This purchase will help Tenable improve its security platform by adding new tools focused on artificial intelligence, which is a fast-growing and important area in cybersecurity.
After looking at different companies in the AI security space, Tenable chose Apex as the top player in the field. Even though Apex had only raised $8.6 million, it’s now being bought for over $105 million—a big achievement for a company that was started just two years ago.
Apex’s first funding round was led by Sequoia Capital and Index Ventures. Well-known investors like OpenAI CEO Sam Altman and Hugging Face CEO Clem Delangue also supported the company.
Apex was founded in 2023 by CEO Matan Derman and CPO Tomer Avni. The two met while serving in Israel’s Unit 8200, where Derman was a Lieutenant Colonel and Avni was a Captain. Both later earned Master’s degrees—one from Stanford and the other from Harvard.
Even though the company is still young, Apex already works with several Fortune 500 companies as clients.
Apex has created a security platform that helps companies clearly see and manage how AI is being used across their organization. This lets them set rules and keep AI use safe and under control.
The platform can spot when security rules are broken and quickly respond to AI-related threats. It helps protect companies from problems like data leaks, harmful data being added, privacy issues, legal risks, and cyberattacks—so they can safely use AI technology.
Tenable is a U.S.-based cybersecurity company that focuses on helping organizations manage and reduce their online security risks. It was founded in 2002 and is based in Columbia, Maryland.
Tenable is best known for creating Nessus, a popular tool used around the world to find security weaknesses in computer systems. The company was started by Ronald Gula, Jack Huffard, and Renaud Deraison—who had already built Nessus in 1998, before founding Tenable.
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