Israeli cyber startup Onyx Security announced on Thursday that it has nabbed $113 million in funding to build a platform that lets humans stay in control, as advanced autonomous systems and smart artificial intelligence agents ramp up in the workplace.

The funding round comes four months after Onyx emerged from stealth with $40 million in financing from investors. The latest round, which values the startup at about $640 million, was led by Bessemer Venture Partners. Other investors, including Cyberstarts, TCV, Conviction, FirstMark, Vintage Investment Partners, QuantumLight and G Squared also joined. To date, the startup has raised $153 million.

Onyx was founded in 2024 by Maxim Bar Kogan, a former officer in the IDF’s cyber intelligence Unit 8200 and former vice president of product and engineering at Mixtiles, together with Gil Elbaz, a former AI architect at US chip giant Nvidia, who previously served as a senior algorithm developer in the Israeli Air Force’s operational technology unit.

Bar Kogan and Elbaz said they teamed up to develop a platform to secure and control AI agents, as advanced AI systems are adopted faster than traditional enterprise security systems can keep up.

“In 2025, less than one percent of all actions were performed by AI agents,” said Bar Kogan, CEO of Onyx. “A year from now, most actions inside the enterprise will be. And not long after that, entire companies will run as autonomous agent operations, making the decisions humans used to make about capital allocation, energy grids, patient care, and supply chains.”

“That raises a fundamental question: How can........

© The Times of Israel