List of Cybersecurity Companies in California

Are you a cybersecurity company? Not yet listed? Click here.
Company Description Location
4iQ 4iQ powers Cyber Risk Intelligence Centers for defense departments, law enforcement agencies, physical security service providers, managed security service providers and critical … Los Altos, United States
6WIND 6WIND’s commercial software solves performance challenges for network vendors in telecom, enterprise and cloud infrastructure markets. The company’s 6WINDGate™ packet … Santa Clara, United States
A10 Networks, Inc. Our solutions enable enterprises, service providers, Web giants and government organizations to accelerate, secure and optimize the performance of their data center applications … San Jose, United States
Acalvio Technologies Acalvio provides Advanced Threat Defense (ATD) solutions to detect, engage and respond to malicious activity inside the perimeter. The solutions are anchored on patented … Santa Clara, United States
Accellion, Inc. Extend your existing applications, content and workflows, to enable users inside the enterprise to securely collaborate with the external world while maintaining complete control … Palo Alto, United States
Accolade Technology Accolade Technology provides the most technologically advanced, lossless packet capture acceleration adapters and platforms available in the market. Accolade’s 1-100GE ANIC FPGA-… Fremont, United States
Aegify Aegify Inc. is a leading provider of unified cloud-based SaaS (software-as-a-service) solutions for IT risk, security and compliance management, vulnerability analysis, and … San Jose, United States
Afero, Inc. Created by mobile and hardware veterans from Google, Apple, Nest, Amazon, Twitter, and Netflix, Afero is a comprehensive and secure platform for cloud-connected devices in any … Los Altos, United States
AGARI Data, Inc. Agari, a leading cybersecurity company, is trusted by leading Fortune 1000 companies to protect their enterprise, partners and customers from advanced email phishing attacks. The … San Mateo, United States
Agile 3 Solutions *Acquired by IBM Agile 3 Solutions is building innovative products to aid clients in transforming their business operations due to today’s challenging and competitive economic climate. These … San Francisco, United States
AlertEnterprise AlertEnterprise provides a unique approach to convergence of Cyber, Physical and Logical Security; an approach that has been recognized by a variety of independent industry … Fremont, United States
AlienVault, Inc. We're on a mission to provide organizations throughout the universe with highly intelligent security that is affordable and simple to use. We founded AlienVault to help … San Mateo, United States
AllthatSoft Co. AllthatSoft is a global mobile security innovator providing enhanced security solutions to protect IoT devices at the heart of digital life. San Francisco, United States
AlphaGuardian Networks AlphaGuardian provides the only integrated systems to manage cybersecurity, physical security and operational analytics for any piece of infrastructure equipment. AlphaGuardian … Aliso Viejo, United States
ALTEN Calsoft Labs ALTEN Calsoft Labs is a next-gen digital transformation,enterprise IT and product engineering services provider. The company enables clients to Innovate, Integrate, and Transform … Santa Clara, United States
American Portwell Technology, Inc. *A Subsidiary of Portwell, Inc. As an Associate member of the Intel Internet of Things Solutions Alliance, and an ISO 9001, ISO 13485, ISO 14001 and TL 9000 certified company, American Portwell is committed to … Fremont, United States
AnchorFree Inc. AnchorFree provides Hotspot Shield, an app that secures internet communication and user identity while providing access to internet content. Menlo Park, United States
Anomali *Formerly ThreatStream Inc. Anomali delivers earlier detection and identification of adversaries in your organizations network by making it possible to correlate tens of millions of threat indicators against … Redwood City, United States
Aporeto Aporeto provides a comprehensive cloud-native security solution for deploying and operating cloud-native applications. San Jose, United States
Apozy, Inc. Apozy creates security products that measure, map and mitigate risks at the individual level for large, forward-thinking companies who want to use data to continuously improve … San Francisco, United States
Appdome, Inc. Appdome’s AppFusion platform enables the rapid integration of multiple third-party functions to apps, shortening the deployment cycle and connecting mobile apps to other … Redwood City, United States
Appthority, Inc. Appthority is a pioneer in enterprise mobile security and the leader in the Mobile Threat Defense category. The comprehensive Appthority Mobile Threat Protection (MTP) solution … San Francisco, United States
Apricorn, Inc. Headquartered in Poway, California, Apricorn provides hardware-based 256-bit encrypted external storage products to companies and organizations that require high-level protection … Poway, United States
Aqua Security Software Ltd. Aqua Security enables enterprises to secure their virtual container environments from development to production, accelerating container adoption and bridging the gap between … San Francisco, United States
Area 1 Security Area 1 actively pursues and provides visibility into the next generation of unknown, sophisticated targeted cyber attacks. Focused on attacking the campaign delivery systems and … Menlo Park, United States
Argus Cyber Security Argus is the world’s largest, independent automotive cyber security company protecting private and commercial vehicles from hacking with multi-layered, end-to-end cyber security … Redwood City, United States
Armis, Inc. Armis is a next-generation wireless security platform, protecting corporate devices, networks and data. Palo Alto, United States
Armor *Formerly FireHost The leader in active cyber defense, Armor offers customer-centric security outcomes for retail and eCommerce enterprises, healthcare organizations, payment leaders and financial … Santa Clara, United States
Artifex Software, Inc. Artifex Software is a trusted partner and provider of core technologies for document handling and management. Novato, United States
Aruba Networks Aruba, a Hewlett Packard Enterprise company, is a leading provider of next-generation network access solutions for the mobile enterprise. The company designs and delivers Mobility-… Sunnyvale, United States
Arxan Technologies Arxan is the trusted global leader of application attackprevention and self-protection products for Internet of Things (IoT), Mobile, Desktop, and other applications. San Francisco, United States
Atricore We deliver Identity and Access Management solutions around a dynamic and fully automated experience, so that businesses of all types and sizes can become more connected without … Sausalito, United States
Attivo Networks, Inc. Attivo Networks® is an award-winning innovator in cyber security defense. Attivo provides dynamic deceptions for the realtime detection of intrusions that have bypassed all other … Fremont, United States
Auconet, Inc. Auconet provides next-generation IT operations management and security through its BICS (Business Infrastructure Control Solution), on a single pane of glass. San Francisco, United States
Authentic8, Inc. Founded in 2010 by principals from Postini, Authentic8 is redefining how the browser is used with Silo, a secure browser in the cloud designed to insulate and isolate web data. Mountain View, United States
Authy *A Twilio Service Authy is a cloud authentication service exposed via an API. It is commonly used for the addition of two-factor authentication (2FA) to existing username and password logins. … San Francisco, United States
Autonomic Software Autonomic Software’s current set of products are endpoint and security management solutions that are fully integrated into McAfee ePO. The Company’s solutions extend ePO’s … Danville, United States
Avast Software Avast is one of the pioneers in the computer security business, with a portfolio that includes free antivirus for PC, Mac and Android, to premium suites and services for both … Redwood City, United States
Avatier Avatier develops software and delivers services that automate IT operations. Our identity management and access governance solutions make organizations more secure and productive … Pleasanton, United States
AvePoint, Inc. Over 15,000 companies and 3 million cloud users worldwide trust AvePoint to migrate, manage, and protect their Office 365 and SharePoint data. AvePoint’s integrated cloud, … Sunnyvale, United States

See also: List of Top MSSPs | Top Managed IT Services in San Francisco, San Diego, and Los Angeles.