Harmonic Security Raises $50M Series B

Harmonic Security, based in San Francisco and London, is a workforce AI security platform that enables safe AI adoption for enterprise employees. The company recently announced a $50 million Series B funding round, bringing its total funding raised to $76 million.

Investors

The funding round was led by Crosspoint Capital Partners, with participation from existing investors.

Harmonic Security Use of Funds

Harmonic Security plans to use the new capital to accelerate growth, specifically focusing on expanding its engineering and go-to-market teams across both the United States and the United Kingdom.

About Harmonic Security

Harmonic Security was founded to help organizations control, enable, and understand AI usage across their workforce. Using proprietary small language models, the company classifies sensitive data by context in real time to provide visibility and security controls for AI interactions, allowing enterprises to adopt AI tools securely.

Funding Details

Company Website: https://harmonic.security

Company: Harmonic Security
Raised: $50M
Round: Series B
Funding Date: October 14, 2026
Lead Investor: Crosspoint Capital Partners
Company Website: https://harmonic.security
Software Category: AI Security
Source: https://www.businesswire.com/news/home/20261014886358/en/Harmonic-Security-Raises-%2450-Million-Series-B-Enabling-Safe-AI-Adoption-for-Millions-More-Employees