Top Cyber Security Startups in 2026

Today, there's more data and users outside the enterprise than inside, causing the network perimeter as we know it to dissolve. We realized a new perimeter was needed, one that is built in the cloud and follows and protects data wherever it goes, so we started Netskope to redefine Cloud, Network and Data Security. Since 2012, we have built the market-leading cloud security company and an award-winning culture powered by hundreds of employees spread across offices in Santa Clara, St. Louis, Bangalore, London, Melbourne, and Tokyo. Our core values are openness, honesty, and transparency, and we purposely developed our open desk layouts and large meeting spaces to support and promote partnerships, collaboration, and teamwork. From catered lunches and office celebrations to employee recognition events (pre and hopefully post-Covid) and social professional groups such as the Awesome Women of Netskope (AWON), we strive to keep work fun, supportive and interactive. Visit us at Netskope Careers. Follow us on LinkedIn and Twitter @Netskope for more updates.

Tanium, the industry’s only provider of converged endpoint management (XEM), leads the paradigm shift in legacy approaches to managing complex security and technology environments. Only Tanium protects every team, endpoint, and workflow from cyber threats by integrating IT, Operations, Security, and Risk into a single platform that delivers comprehensive visibility across devices, a unified set of controls, and a common taxonomy for a single shared purpose: to protect critical information and infrastructure at scale. Tanium has been named to the Forbes Cloud 100 list for six consecutive years and ranks on Fortune’s list of the Best Large Workplaces in Technology. In fact, more than half of the Fortune 100 and the U.S. armed forces trust Tanium to protect people; defend data; secure systems; and see and control every endpoint, team, and workflow everywhere. That’s the power of certainty. Visit tanium.com and follow us on LinkedIn and Twitter.

Security is hard. Breaches are happening daily. We watch over the networks of small and medium size businesses. We don't bother them with noise, we give them clear actions to take to make their network safe and clean.  A small appliance is dropped into the customer network. It gathers network information that we analyze with a combination of automated tools and a team of security experts. The customer gets human created instructions on addressing the issues or changing the network. 

For many organizations, the most valuable asset is their data. Whether source code, product designs, customer records, financial results, or pricing models, every organization has information they don’t want to get in the hands of competitors, sold on darknet marketplaces, or exposed publicly. Keeping that data safe has been a challenge, until now. Cyberhaven gives organizations the tools to safeguard their data from theft or misuse. In the process, we’ve become the standard for Data Detection and Response (DDR), the category we helped create.

The Onapsis Security Platform is the first SAP cyber-security solution that combines vulnerability, compliance, detection and response capabilities that traditional security solutions do not provide. The larger companies worldwide rely on Onapsis solutions because over 75% of all their transactions occur on business-critical applications, thus making data from these systems endlessly valuable to attackers. Through continuous monitoring, the Onapsis Security Platform delivers a real-time preventative, detective and corrective approach for securing SAP systems and applications.

BitSight is transforming how companies manage information security risk with objective, evidence-based security ratings. Our founders had a simple but profound insight: rather than going deeper into security policies and procedures, instead follow the outside-in model employed by consumer credit rating agencies. This model involves continually collecting and analyzing vast amounts of external data on security behaviors and security policy implementations. No questionnaires are presented, and we perform no intrusive tests on the organization being rated. With this data, our Security Rating Platform derives BitSight Security Ratings that measure a company’s security performance using an empirical, data-driven method.

Building for the cloud is easy. Building for the edge is still way harder than it should be. Source is changing that. We're building the data management stack for edge-first software — as simple and intuitive as the best cloud tooling, with data sovereignty baked in from the start. The edge era is here. We're building the infrastructure it runs on.

T-Rex has been recognized as a “fastest growing company” on the Inc. 5000 list. We’re blazing new paths in federal government IT modernization and transformation with our deep technical expertise in Systems Integration and Development, Cloud Adoption and Infrastructure Optimization, Cybersecurity, Data Engineering and Analytics, and Mission Critical Services.

Synack, the most trusted crowdsourced security testing platform, delivers smarter penetration testing to security teams who need a scalable, efficient way to test their attack surfaces on a continuous cadence and get actionable results. Synack’s crowdsourced penetration test is powered by the world's most skilled and trusted ethical hackers and augmented by AI-enabled technology to give customers the best of human intelligence and machine intelligence. Headquartered in Silicon Valley with regional offices around the world, Synack protects leading global banks, federal agencies, DoD classified assets, and close to $1 trillion in Fortune 500 revenue. A 4-time CNBC Disruptor 50 company, Synack was founded in 2013 by former NSA security experts Jay Kaplan, CEO, and Dr. Mark Kuhr, CTO. For more information, please visit synack.com.

When it comes to securing Industrial Operations environments, we believe humans should always be in the loop as actions in the cyber-physical world have real consequences. Threats are increasing faster than we can hire and train employees. We provide an intelligence augmentation platform that acts as your “cyber-sidekick”. Galvanick helps industrial companies secure their operations by reducing the time to detection of anomalous behavior on their most sensitive assets. The Galvanick cloud-native analysis platform aggregates telemetry from industrial environments and hosts systemic models that enable operators to quickly understand the difference between, and context around, both normal and abnormal behavior.