Top Security Startups in 2026

ReliaQuest provides a SaaS security platform designed to minimize data loss and business disruptions. Its GreyMatter platform delivers visibility across SIEM, EDR, and multi-cloud environments to speed detection and response while maturing security investments to deliver security confidence. The company was founded in 2007 and is headquartered in Tampa, Florida.

Open-Source Development

Your online sandbox enables you to search, visualize and analyze pre-populated data, and thoroughly investigate incidents across a wide range of security use cases. You can also walk through a step-by-step tutorial that will guide you through the powerful visualizations and analysis.

We are developing a variety of products to serve all automotive markets/customers; commercial and consumer, integrated and after-market. This includes security cameras with object detection and sound detection technology to deter theft and protect our customers security threats, as well as a mobile application to deliver key security alerts to the user.

SpyCloud is a developer of a prevention platform used to prevent users' accounts and thwart online fraud. Its platform provides early data recovery, data cleansing, password cracking, and automated remediation that enable businesses to safeguard the identity of their employees, consumers, and suppliers. It helps businesses of all sizes prevent data breaches and account takeover attacks by alerting when employee or company assets have been compromised. The company accomplishes this through an early-warning breach detection service powered by a team of intelligence analysts.

Praetorian (praetorian.com) is an information security provider dedicated to helping today's leading organizations achieve risk-management success. Through its application security, mobile security, and cloud security services, Praetorian helps clients identify, prioritize, and mitigate risk in the most cost-effective way possible.

CertiK is the premier blockchain cybersecurity start-up founded by computer science professors from Yale University and Columbia University. By applying the rigor of proprietary Formal Verification technology to audit smart contracts and blockchain protocols, CertiK has been able to secure over $6.2B in assets, including many of the world’s top blockchain projects. The research efforts of CertiK have received grants from IBM and the Ethereum Foundation, and some notable investors include Binance Labs, Lightspeed Venture Partners, Matrix Partners, Arrington XRP, and NEO Global Capital, among others.

Fortress helps organizations secure their data assets both inside and outside of the firewall. Externally, we continuously monitor third-parties (vendors) to identify the weakest links and mitigate the risk. Inside the firewall, Fortress provides security monitoring and services that create a simple single pane of glass view of an organization's security risks. As breaches and data loss rise due to poor vendor security and third party risk management (think Target breach), Fortress' technology and analytics can find the weakest links, while pushing into the extended perimeter like never before. Our RIMM platform allows us to integrate with existing applications, tools, and data so clients quickly get a scalable solution that covers some of their most pressing security needs.

Cloudmersive brings its customers a complete portfolio of APIs across Virus Scanning, Document Conversion and Processing, Deep Learning OCR, Image Recognition and Processing, Natural Language Processing, Barcode Processing and any other key areas. Core to our value is that our customers can take advantage of all of these APIs with one plan and pricing model, and get end-to-end support and services. Customers can also deploy via our hosted Cloud instance, our private tenant cloud, or even our fully private-cloud model which allows for deployment on-premise and in Azure, AWS and GCP. This flexibility and native multi-cloud approach is powerful because it enables customers to deploy in the way that works best for them.

Soteria is a Disabled Veteran owned Cyber Security firm headed by experienced former members of the NSA, CIA, DoD., and Fortune 500 corporations. With Consultants based in Charleston, Atlanta, Washington D.C., and the San Francisco bay area, Soteria is ready to deploy quick reaction incident handlers to address security concerns for all of our clients.