Cybersecurity Startups
3,552 companies tagged Cybersecurity, with their investors and founders.
Mandiant provides cybersecurity consulting and services, including incident response, compromise assessments, red team and offensive security testing, threat intelligence, and AI security consulting. It serves enterprises and executive leadership through frontline expertise and is now part of Google Cloud.
3 investors
MassMutual Ventures is the venture capital arm of MassMutual, investing in enterprise SaaS, climate technology, fintech, cybersecurity, and healthtech companies and providing capital, connections, and expertise to support their growth.
3 investors
Mattermost is a secure team collaboration platform designed to complement Microsoft Teams and Microsoft 365, providing on-premises or private cloud deployment with advanced customization, data control, and integration capabilities for mission-critical and highly regulated environments.
3 investors
Medcrypt provides cybersecurity products and strategic consulting to medical device manufacturers to ensure devices are secure by design and meet regulatory requirements. The company combines technology solutions with management consulting and decision science to support the medical device industry.
3 investors
Mend.io provides visibility and governance tools for identifying and managing shadow AI and software supply chain risks in organizations. The platform helps development teams and security practitioners secure AI and software dependencies across their systems.
3 investors
Mesh Security offers a Cybersecurity Mesh Architecture (CSMA) platform that connects an enterprise's existing security tools, data lakes, and infrastructure into a unified context graph to reveal attack paths, posture gaps, and exposures. It targets enterprise security teams and CISOs, providing agentless assessment across identity, cloud, SaaS, and endpoints, including Zero Trust posture evaluation.
3 investors
Mimic provides enterprise ransomware and cyber extortion defense software for large organizations. The platform detects and deflects ransomware attacks earlier than traditional security approaches.
3 investors
Mimoto develops AI technology to address organizational internal security gaps. The company applies neural network and digital double technology to solve critical security problems for enterprises.
3 investors
Mine offers a data privacy and governance suite serving both organizations and individuals, aimed at managing data privacy needs on both sides of the market.
3 investors
Mithril Security builds a secure supply chain for AI providers, offering provenance traceability, model protection, and data confidentiality. Its AICert product uses secure hardware such as TPMs to generate cryptographic proof binding a model to its training algorithm and dataset, and serves models in hardened environments that keep data confidential.
3 investors
M-SAFE is a user-friendly security or safety product built by engineers from major tech companies. The company focuses on providing accessible solutions with dedicated customer support.
3 investors
N-able provides IT management and cyber resilience software combining endpoint management (N-central), security operations and threat detection (Adlumin), and cloud-native backup and disaster recovery (Cove Data Protection). Its products serve IT service providers and businesses seeking unified endpoint security, threat detection and response, and data recovery.
3 investors
Nalalys is a company focused on preventing fraud and creating fair, safe business environments through technology. It aims to provide services that protect companies and their employees from involvement in fraudulent activity.
3 investors
Naq is a multi-framework governance, risk and compliance (GRC) platform that helps companies obtain and maintain certifications such as ISO 27001, NHS DSPT, DTAC, DCB0129, Cyber Essentials and GDPR from a single dashboard, with shared controls mapping evidence across standards. It combines software for risk registers, document lifecycle, compliance training and asset registries with in-house experts including Clinical Safety Officers and virtual DPOs, serving organizations selling to procurement teams, the NHS and EU customers.
3 investors
Nebulock builds an AI-driven threat hunting platform that correlates threat intelligence with organizational context across endpoint, identity, cloud, network, and SaaS, focusing on attacker behavior and TTPs rather than indicators of compromise. It is aimed at security teams seeking proactive threat detection without adding headcount.
3 investors
Nectry provides a governance and control plane for enterprise AI agents, chatbots, and apps, letting companies build specialized, policy-scoped agents and bring existing AI (in Copilot, Salesforce, or low-code tools) under audit-ready control. It uses compiler-enforced guardrails and mathematical verification—based on MIT CSAIL research—to prove and monitor what each agent can and cannot do for security and compliance reviews.
3 investors
NetFoundry provides identity-first zero trust connectivity for distributed workloads across AI, APIs, IoT, and enterprise infrastructure, eliminating attack surfaces without requiring open ports or VPN changes. The platform serves enterprises in regulated industries including healthcare, financial services, and energy.
3 investors
Netki provides automated KYC/AML compliance and identity verification solutions for cryptocurrency exchanges and financial institutions. The company offers OnboardID for biometric-based user verification and TransactID for travel rule compliance on digital asset transactions.
3 investors
Netwrix offers 1Secure, a platform that unifies data and identity security, giving organizations control over data access and helping with compliance. It serves enterprises and organizations of all sizes with AI-enabled insights, unified visibility, and flexible deployment for hybrid IT environments.
3 investors
NexusTek provides managed IT services covering cloud migration and optimization, data and AI operationalization, IT operations management, and cybersecurity. It serves businesses including mid-market and enterprise clients across sectors such as financial services.
3 investors
Nightfall is an AI-native data loss prevention (DLP) platform that monitors and controls how sensitive data such as credentials, PHI, PCI, and PII moves across SaaS apps, endpoints, email, browsers, and AI tools. It uses AI-based classifiers and data lineage tracking to detect and block data exfiltration and insider risks, including leaks to generative AI apps like ChatGPT, for security teams at organizations of scale.
3 investors
NodeShift provides a governance layer that lets developers use frontier coding models such as Claude, GPT and open-source models while preventing internal source code, secrets, and credentials from reaching external providers. It scans every prompt for sensitive data before it leaves the company perimeter and logs all model outputs.
3 investors
Noetic Cyber provides an attack surface management platform that gives security teams a unified view of assets across an organization's digital estate to identify high-risk assets and potential exposures. It operates in the cybersecurity space.
3 investors
Tracking and monitoring solutions for transportation, logistics, and delivery companies.
3 investors