Harmonic Security’s cover photo
Harmonic Security

Harmonic Security

Technology, Information and Internet

San Francisco, California 5,169 followers

Stop data leaks, not innovation.

About us

Harmonic Security lets your teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives you full control and stops leaks so your teams can innovate confidently. Recognized as an RSA Innovation Sandbox finalist in 2024, Harmonic Security redefines data protection for the GenAI era.

Industry
Technology, Information and Internet
Company size
11-50 employees
Headquarters
San Francisco, California
Type
Privately Held
Founded
2023
Specialties
data protection, genai DLP, AI data protection, and AI governance

Locations

  • Primary

    1390 Market Street, Suite 200

    San Francisco, California 94102, US

    Get directions

Employees at Harmonic Security

Updates

  • Harmonic Security reposted this

    Your career deserves its own algorithm — and Mariana Padilla is here to help you hack it! ✨ Join us at #WITCON2025 for her session “The Algorithm of You: Hacking Your Career with Personal Branding.” In this dynamic workshop, Mariana will show you how to define your unique professional story, build a compelling online presence, network with purpose, and amplify your influence in the tech industry. 🚀 Whether you’re looking to stand out in your next role or take your career to the next level, this session will give you actionable strategies to confidently navigate your professional path. 🎟️ Don’t miss this opportunity to elevate your personal brand at WITCON 2025: Thrive Forward, Shape Tomorrow! Grab your ticket today →  https://lnkd.in/gchCQF8K Catherine “Cat” Bushong Kiera Boucher Alexis McKinley Cheryl Nachbauer Genny Stone Lindsey McMullen 🔒Amanda Blades Shannon Culp Corissa B. Bri Carey Anne Rogers Teresa D. Williams

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  • Harmonic Security reposted this

    We've been cooking up something new at Harmonic Security... MCP Servers have been a game-changer for me personally, but there's been times where I've had to step in and prevent my agent from doing something dangerous or exposing data somewhere it shouldn't. So it's been really exciting to work on the Harmonic MCP Gateway, a solution that helps you work more confidently with AI, without the risk of exposing sensitive information. Blog post and demo video links in replies. Kudos to Edward M. for the awesome demo.

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  • Harmonic Security reposted this

    View profile for Edward M.

    Security @ Harmonic Security

    MCP giving you a security headache? Look no further! I'm proud to have been part of the elite team at Harmonic Security building out our new MCP Gateway. As a security leader myself, I'm pretty lucky to work with the best engineers (shout out Jamie Cockrill) building tools to solve the exact risks we are facing into. My thoughts have directly helped shape this new tool. Checkout the product demo I put together below - I'm so pumped by this new product, I know you will be too!

  • Harmonic Security reposted this

    View profile for Alastair Paterson

    CEO and co-founder of Harmonic | Enabling Secure AI Use

    We’re launching MCP Gateway today. 🚀 What’s made MCP so widely adopted is how simple it is to implement. It’s become the fastest way to build agentic workflows. But with that ease comes new security headaches. Sensitive data can now move between AI tools and business systems without much oversight, which leaves security teams in the dark on: - Which MCP clients and servers are in use - What data is being exchanged - When risky workflows occur That creates a real risk of data leakage, workflow hijacking, and compliance gaps. Harmonic Security's MCP Gateway gives security teams visibility into how AI is interacting with company systems, plus the ability to set real-time policies that protect data. More on how it works and what this means for secure AI adoption here:

  • Agentic AI is moving fast and most teams have no visibility into what’s actually happening. Today we’re announcing something to fix that: Harmonic MCP Gateway. 🚀 It’s a lightweight, developer-friendly gateway that gives security teams visibility into MCP usage and the ability to set real controls, blocking risky clients or data flows before something slips through.

    • Harmonic Security MCP Gateway
  • Harmonic Security reposted this

    View profile for Alastair Paterson

    CEO and co-founder of Harmonic | Enabling Secure AI Use

    When we decided to host the UK Cyber Flywheel at the National Theatre, the idea was simple: get the right people in the room (seasoned founders, new founders, investors, CISOs, policymakers), have a real conversation about the UK cybersecurity startup ecosystem and good things will happen. The event was wildly popular: We were standing room only and had a wait list of over 100 people trying to come.  In the room were more than 30 founders, 25 cyber VCs and 20 CISOs alongside other top players in the ecosystem.  What happened went beyond our expectations and it feels like we sparked something into action.  The UK has always had great engineering talent, but has not built as many scale up cyber companies as it should.  The issues are many, but one area we were hoping to make a difference in was helping to build the connective tissue between the most innovative founders and forward-leaning CISOs.  From what I am hearing, we have started to make a difference there.  One founder told me he walked away with 6 follow up CISO meetings. I have an inbox full of people praising the event (sorry I haven’t had a chance to reply to everyone!). Thanks to everyone who came. The room was full, the energy was high, and the message was clear… people want more of this. So there will be more to come.

    • Cyber Flywheel UK event
    • Cyber Flywheel UK event
    • Cyber Flywheel UK event
    • Cyber Flywheel UK event
    • Cyber Flywheel UK event
  • Harmonic Security reposted this

    View profile for Oliver Smith

    The easy button for secure AI adoption.

    I’m looking for a VP / Head of Finance to join us at Harmonic Security. This is a pivotal role that comes at a critical inflection point. Harmonic's mission is to help enterprises adopt AI safely and confidently, and we've achieved initial product-market fit. We're now gearing up for our next stage of growth, and this role will anchor our financial strategy and readiness for Series B and beyond 🚀 What you bring: • Strategic finance leader with SaaS / startup experience • Comfortable flexing between boardroom and spreadsheet • Builder of systems, teams, and rigor • Sharp analytical and storytelling skills • Fluent in SaaS metrics and fundraising readiness • Hands-on operator with startup grit • Excited to build an AI-first finance org What you’ll do: • Lead Series B readiness (model, data room, investor story, etc.) • Build forecasting, reporting, and financial infrastructure • Partner across GTM, Product, and People teams • Drive strategic decisions on growth, efficiency, and capital allocation • Be both architect and operator as we scale If this sounds like you, we’d love to meet. 📍 SF-based (hybrid, 3 days / week in office) 👉 Apply here: https://lnkd.in/gKD874PP

  • Harmonic Security reposted this

    View profile for Heidi Nickles (Newiger)

    People & Culture Leader | Building belonging and shared success at the intersection of people and AI security

    Harmonic Security is hiring! 🚨 We're on the lookout for some incredible new teammates — and we’d love your help finding them. We’re currently hiring for: 💼 VP / Head of Finance – San Francisco based 👉 https://lnkd.in/gKD874PP 🤝 Account Executives – SF, Central + East (Remote) 👉 https://lnkd.in/gGNvV5vN 📋 Chief of Staff – San Francisco based 👉 https://lnkd.in/gNTyxDRm Know someone great? Tag them. Want to help? Share this. Together, let’s build something iconic ✨

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Funding

Harmonic Security 3 total rounds

Last Round

Series A

US$ 17.5M

See more info on crunchbase