Top California Cybersecurity Startups (168)

With our feet firmly planted on San Francisco bedrock — we’ve got our eyes set on our North Star: Ushering in a new era of where enterprises are free to embrace data safely with clarity, control, and confidence. Powered by the industry’s only AI Reasoning (AIR) Engine, Bedrock automatically understands what is most material to enterprises to protect their most...

Halcyon is a cybersecurity company building products that stop ransomware from impacting enterprise customers. Halcyon's core platform offers layered ransomware protection that combines pre-execution detection, behavioral modeling, deception techniques and, if all else fails, resiliency, recovery and isolation of impacted nodes. To learn more and get a demo, contact us today.

Cowbell Cyber is the leading provider of cyber insurance for small and medium-sized enterprises (SMEs). Cowbell delivers standalone cyber coverage tailored to the unique needs of each business. Our innovative approach relies on AI for continuous risk assessment and continuous underwriting while delivering policyholders a closed-loop approach to risk management with risk prevention, risk mitigation, incident preparedness and response services.

Rebel Space Technologies is a space and cybersecurity company developing autonomous threat recognition and response software for wireless communication networks. Our mission is to protect and optimize networks with intelligent systems, securing humanity's hyper-connected infrastructure from Earth to deep space.

Since our founding in 2003 in Los Angeles, California, we’ve spent the last twenty years building on our expertise as trusted technology advisers and vendors for the media & entertainment, and architecture industries. Our staff of technology specialists and VFX pipeline engineers are known for their innovative approach to problem-solving and trusted for their expertise in architecting client-centric production...

Socket is a cybersecurity platform that protects companies from software supply chain attacks. Companies use Socket to protect their software applications and critical services from malware and security threats originating in open source code.

Adaptive is a next-generation cybersecurity platform. We're working with pioneering security teams to protect critical systems from AI-powered cyber attacks. Our customers today include one of the largest payment aggregators in the United States, hedge funds and private equity firms, regional and national banks, leading technology companies, and critical healthcare systems. Join us in building the future of cybersecurity.

No more legacy SIEM. Time for a Modern approach. Democratize security across your hybrid, multi-cloud, and other data lakes. Anvilogic is an AI-Driven SOC platform for threat detection and incident response that helps to unify and automate security operations across people, processes, and technology enabling security teams to reduce the time, manual effort, complexity, and expertise needed for building detections and...

Innovative IT Solutions Built for Your Business. InterSources Inc is your partner in Growth and CyberSecurity. “We’re building a next-gen Managed Security Services Provider that enables small to mid-sized businesses to access enterprise-grade cybersecurity protection—without the enterprise cost.” “Cyber threats are evolving daily, and most companies don’t have the resources or talent to defend themselves. We offer 24/7 monitoring, threat detection, and...

BlueRock delivers the first Compute Firewall, revolutionizing runtime security in an era of AI-speed cyberattacks and escalating third-party software risks. Traditional security tools and agents can't keep pace, leaving enforcement gaps exposed. Attackers now exploit vulnerabilities within minutes of disclosure, outpacing reactive detection methods. BlueRock solves this by embedding real-time, preemptive enforcement directly into the compute layer, halting exploits precisely...

ICE is a leading managed IT solution provider specializing in full-range, vendor-independent managed IT services to small and mid enterprises for over 24 years. 97% CSAT (Client Satisfaction Score) with over 5,000.00 client reviews, customer service is front and center at ICE. Our objective is to be Trusted IT Partner for our clients. We specialize in Cybersecurity and provide 24x7x365...

Valence enables security teams to find and fix SaaS risks. As SaaS complexity and distributed management present security challenges, the Valence SaaS security platform provides unparalleled and actionable insights into configuration, identity, data, SaaS-to-SaaS integration, and GenAI risks. The Valence platform offers comprehensive SaaS security posture management (SSPM), risk remediation, and identity threat detection and response (ITDR). Valence’s unique remediation...

In today's world, most successful cyberattacks start by a human failure. We're making the platform that makes it easy to prepare your employees for cyberattacks, in a way they love.

At Framework Security, we take a proactive approach to cybersecurity, working with organizations to identify potential vulnerabilities and implementing measures to prevent attacks before they happen. In the event of a security incident, we offer rapid response services to minimize damage and get businesses back up and running as quickly as possible. Our services include cybersecurity framework assessments, penetration testing, virtual...

Horizon3.ai's mission is to help you find and fix attack vectors before attackers can exploit them. NodeZero, our autonomous penetration testing solution, enables organizations to continuously assess the security posture of their enterprise, including external, identity, on-prem, IoT, and cloud attack surfaces. Like APTs, ransomware, and other threat actors, our algorithms discover and fingerprint your attack surface, identifying the ways...

System Two Security automates detection engineering and threat hunting. Leveraging the latest advances in AI, System Two creates custom agents and models to simplify and accelerate handling emergent threats, managing detection lifecycles, and optimizing rules for detecting adversaries faster.

Organizations of all sizes use AISLE to autonomously discover and remediate critical vulnerabilities at superhuman speed and depth. We secure the entire software stack — from operating systems, libraries, and protocols to the application layer — so teams can build, deploy, and innovate faster and more securely.

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.

Secureframe is the leading, all-in-one compliance automation platform that helps companies achieve and maintain compliance with the most rigorous frameworks including CMMC, FedRAMP 20x, SOC 2, ISO 27001, and HIPAA.

Cyolo is redefining SRA for OT with a hybrid Remote Privileged Access Solution (RPAM) solution that provides safe and secure remote access and operations, even in the most sensitive environments. The Cyolo PRO (Privileged Remote Operations) solution seamlessly integrates secure access, connectivity and supervision through features such as VPN-less zero-trust access, MFA identity authentication (even for legacy apps), credentials vault,...