Israeli AI cybersecurity startup Onyx Security has announced it has completed a $113 million Series B financing round led by Bessemer Venture Partners with participation from Cyberstarts, TCV, Conviction, FirstMark, Vintage Investment Partners, QuantumLight, and G Squared. RELATED ARTICLES Israeli startup Onyx Security raises $40mOnyx has developed a secure platform that allows organizations to discover, manage, and govern the use of AI agents - both third-party agents and internally developed agents built by engineering teams. The company was founded in 2024 by CEO Maxim Bar Kogan, a former Unit 8200 officer and chief AI officer Gil Elbaz, an AI entrepreneur who served in the Israeli Air Force's operational technology unit. Onyx has over 80 employees in Israel, the US, and Canada, and already works with many Fortune 500 companies. Bar Kogan said, "In 2025, less than one percent of all actions were performed by AI agents.