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Israeli Startup Onyx Raises $113 Million in Series B at $640 Million Valuation

aiai-fundraisingtechcybersecurity 2 posts · 2 accounts

Israeli AI security startup Onyx has raised $113 million in a Series B funding round, reaching a $640 million valuation.

The announcement comes just four months after the company emerged from stealth, positioning the business to capture the expanding market for securing artificial intelligence agents.

From the sources (2 posts)

@calcalistech

AI security startup @onyx_sec raises $113 million Series B at $640 million valuation. Just four months after emerging from stealth, the Israeli startup is betting that securing AI agents will become one of cybersecurity's biggest markets.

@saranormous

RT @maximbarkogan: We started Onyx two years ago with the mission to control advanced AI. Today, we’re announcing our $113M Series B led by…

Preview built on a synthetic news corpus (16 weeks, Apr–Jul 2026). Impact calls are model reads, not price data.

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