Harmonic Security raises $50M to govern employee use of AI tools

Harmonic Security has raised $50 million in a Series B round led by Crosspoint Capital Partners. Its platform inspects what employees send to AI tools before it leaves, using custom small language models to return a verdict in milliseconds. More than 100 companies are customers, and total funding now stands at $76 million.

• $50M Series B led by Crosspoint Capital Partners
• Platform checks data before it reaches AI tools in milliseconds
• Over 100 customers, including some of the largest enterprises
• Total funding reaches $76M; staff tops 90 across US and UK