Cybersecurity Startups

CardinalOps offers an AI-driven detection engineering platform that analyzes an organization's SIEM and EDR tools to identify coverage gaps, fix broken or noisy detection rules, and generate new threat-informed detections mapped to the MITRE ATT&CK framework. It targets security operations centers (SOCs) and enterprise security teams, spanning cybersecurity areas such as threat detection, threat intelligence operations, and exposure management.

7 investors

Castle provides fraud detection software that blocks automated and human-driven account takeovers, fake accounts, and behavior that breaks a platform's policies. It serves online platforms and developers looking to secure user accounts.

7 investors

Certa provides a no-code platform for third-party lifecycle management, automating vendor and supplier onboarding along with risk, compliance, and ESG profiling. It serves large organizations looking to manage relationships with vendors and partners.

7 investors

Certora provides formal verification and security services for smart contracts and blockchain protocols. The company serves developers and protocols in the cryptocurrency and decentralized finance space.

7 investors

Cinder provides trust and safety infrastructure that uses AI agents to detect and act on abuse, fraud, and policy-violating content such as CSAM, extremism, and adult material across online platforms. It offers a configurable moderation platform with policy-aligned agents, human-in-the-loop review, audit trails, and services like AI red teaming, data labeling, and managed operations for enterprise product and safety teams.

7 investors

ClearDATA is a cloud security and compliance platform purpose-built for healthcare organizations. It provides cloud security posture management (CSPM) software to prevent, detect, and remediate compliance drift and sensitive data gaps across AWS, Azure, and Google Cloud Platform, with expertise in HIPAA, HITRUST, and GDPR regulations.

7 investors

Burst (Cloudburst) provides a platform for collecting, enriching, and scoring intelligence data with an entity graph, serving AML/compliance and financial intelligence teams at banks, exchanges and fintechs, as well as threat intelligence, national security, and fraud/investigations teams. It offers data access through a platform workspace, API, MCP server, and bulk data delivery.

7 investors

Cloudmark offers messaging security and compliance solutions that protect against spam, phishing, SMiShing, viruses, and malware across mobile messaging, email, rich communications, and social media. It serves mobile network operators, internet service providers, and hosting providers, providing threat protection, revenue assurance, and compliance visibility.

7 investors

CloudSEK builds an AI-based external threat management platform that detects, analyzes, and reports cyber threats across the surface web, deep web, dark web, and internet-exposed infrastructure for organizations. Its products include XVigil and Nexus, an AI-powered cybersecurity command center that unifies threat intelligence and attack surface insights.

7 investors

Cobalt provides penetration testing as a service (PTaaS) and offensive security testing for enterprises, offering both on-demand pentests and continuous testing programs enhanced with AI-powered vulnerability detection.

7 investors

Coro provides a unified security platform that consolidates endpoint, email, cloud, network, identity, data protection, and security awareness training for businesses. The platform serves enterprises seeking to simplify their security infrastructure as they scale.

7 investors

Corvus Insurance provides cyber and Tech E&O insurance paired with threat intelligence, cyber advisory services, and dedicated claims support, distributed through commercial insurance brokers in the United States. It combines coverage with a Cyber Risk Dashboard that gives policyholders continuous security monitoring, personalized threat alerts, and security recommendations.

7 investors

Credal provides a platform for managing AI agents with administrative visibility and team access controls. The product serves organizations deploying multiple agents.

7 investors

CyberSmart provides cybersecurity monitoring, training, and insurance solutions designed for small and medium-sized enterprises and the organizations that serve them. The company delivers its offerings through an all-in-one platform combining cyber risk protection with managed security services.

7 investors

Cynomi offers an AI-driven security program management platform that lets managed service providers and security consultancies run assessments, generate risk registers, remediation roadmaps, policies, and compliance mappings, and manage the full security program lifecycle across their client portfolios. Its "CISO Intelligence" embeds senior security judgment into guided workflows so junior teams can deliver CISO-level program management without a dedicated CISO on each account.

7 investors

Deep Instinct develops a data security platform powered by deep learning that detects and blocks zero-day attacks across cloud, applications, NAS, and endpoints in real time. The company serves enterprise security teams seeking prevention-first protection against AI-driven malware threats.

7 investors

Dream builds sovereign technology systems that let national governments manage critical assets and infrastructure within their own borders and control. It works directly with heads of state, ministries, and national cyber authorities, with expertise spanning AI, cybersecurity, and sovereign infrastructure.

7 investors

EclecticIQ builds a threat intelligence platform powered by AI to help organizations address cybersecurity challenges. The company serves global enterprises seeking to detect, analyze, and respond to evolving security threats.

7 investors

Egnyte provides software for protecting and managing business-critical content across organizations of all sizes. The platform enables knowledge workers to securely share and govern information with built-in collaboration, discovery, security, and governance capabilities.

7 investors

Escape provides an offensive security platform that continuously maps an organization's attack surface and identifies vulnerabilities the way attackers would, integrating directly into engineering workflows. The platform is designed for security teams managing large numbers of developers.

7 investors

F5 develops application delivery and security software and hardware platforms, including BIG-IP load balancers and application firewalls, for enterprise and government networks. The company serves organizations requiring network traffic management, cybersecurity, and application access control.

7 investors

Featurespace provides an AI-powered fraud detection platform deployed across financial institutions, payment processors, and insurance companies globally. The platform processes over 100 billion events annually to detect fraudulent behavior in real time.

7 investors

FenixPyre provides file-layer data protection for unstructured files to ensure data remains encrypted and unusable even when accessed with stolen credentials. The platform serves organizations that hold sensitive personal and professional data, particularly those vulnerable to supply chain credential theft.

7 investors

Mozilla is a global community organization that develops and maintains open-source internet infrastructure, including the Firefox web browser and Thunderbird email client, while advocating for internet openness, privacy, and user control. The organization also invests in responsible technology startups and creates open-source AI tools for developers.

7 investors