Cybersecurity Startups
3,552 companies tagged Cybersecurity, with their investors and founders.
Castlepoint provides an AI-based platform that automatically discovers and classifies data and records across an organisation's systems using explainable AI, without requiring metadata, tags, or labels. It helps organisations manage privacy compliance, records retention and destruction, and data breach risk, serving government agencies and other regulated bodies.
2 investors
Cavelo offers a unified cyber risk platform for MSPs, MSSPs, vCISOs and IT teams that combines data exposure management, data discovery and classification, and vulnerability management with AI-driven risk prioritization. It helps service providers identify sensitive data, assess attack surface, and generate client-facing risk reports to reduce tool sprawl and grow security services.
2 investors
Ceartas uses AI to scan millions of websites and platforms for leaked content, deepfakes, and impersonator accounts using a customer's likeness, then issues takedowns across DMCA and other legal frameworks. It serves content creators, influencers, coaches, and personal brands seeking to protect paywalled content and their online identity.
2 investors
Cellebrite provides digital intelligence software used by law enforcement, national security, and defense agencies to access, extract, secure, and manage digital evidence. Its tools help investigators collect data from digital sources and centralize case intelligence to speed up investigations.
2 investors
Censys operates an Internet-wide scanning map that provides real-time data on Internet infrastructure, delivered through a platform for exploring exposure, dependencies, and attacker infrastructure. It serves security teams seeking visibility and actionable intelligence about their attack surface and external threats.
2 investors
Centripetal offers CleanINTERNET, a threat prevention service deployed between an organization's ISP and firewall that blocks known threats at the network level using threat intelligence, AI, and a dedicated intelligence operations team. It serves enterprises across on-prem, cloud, mobile, and DNS environments, including sectors such as healthcare and research hospitals.
2 investors
ChainPatrol is a brand protection platform that detects and removes phishing sites, fake domains, impersonating social media profiles, and app store listings targeting a company's brand, executives, and community. It combines automated scanning with human analysts to block malicious domains across 20+ crypto wallets and browsers and file takedowns, serving crypto and Web3 brands.
2 investors
Chargeback used AI agents and computer-use automation to cancel consumers' unwanted subscriptions on their behalf.
2 investors
Checkmarx provides an application security (AppSec) platform that integrates into the software development lifecycle via developer-friendly APIs to embed security from development through deployment. The page describes its partner program for resellers, technology vendors, systems integrators, and managed service providers.
2 investors
Cimento is a security awareness platform that runs AI-driven, multi-channel phishing simulations (email, SMS, and voice with deepfake content) to measure employee risk and deliver personalized, behavior-based training. It integrates with HRIS, SIEM, and GRC tools to produce dynamic employee risk scores, automate remediation, and assess the security of deployed AI agents.
2 investors
Cinchy provides a Data Collaboration Platform that integrates enterprise data across systems with governance controls, and offers PeriMind, a governance layer for AI agent access to enterprise systems. The company serves large enterprises in financial services, technology, and manufacturing.
2 investors
Ciphero provides a deterministic security layer that lets security teams observe, audit, and verify AI interactions across models, agents, and machines. Its engine combines proprietary verifiers (for prompt injection, malicious commands, secrets, and PII) with plain-English policies to inspect AI inputs, outputs, commands, and tool calls, and produce compliance-ready audit trails; its Orpheus product runs on endpoints to verify actions taken by coding agents like Claude Code, Codex, and Cursor.
2 investors
CipherStash provides queryable, field-level encryption for Postgres databases, keeping data encrypted while applications use it and allowing decryption only under identity-bound access policies. It targets development and security teams needing compliance (PCI DSS 4, HIPAA, SOC 2) with support for stores like Supabase, Neon, and RDS and plugins for Drizzle, Prisma, Auth0, and Clerk.
2 investors
Circadence develops gamified, cloud-based cybersecurity training and awareness platforms for individuals, teams, and government agencies. The company creates high-fidelity virtual simulations and cyber ranges aligned with NIST/NICE frameworks for hands-on learning.
2 investors
Circadian Risk offers a physical security risk and compliance assessment platform that lets organizations monitor risk across multiple locations, run assessments against any compliance standard, and manage remediation from a single dashboard. It serves security teams and consultants across industries such as grocery distribution and financial institutions, providing vulnerability, threat, and impact analysis plus reporting and corrective action tools.
2 investors
Circuit is a security response platform that automatically transfers digital assets to safe vaults when wallet keys are compromised, lost, or infrastructure fails, serving cryptocurrency institutions and custodians.
2 investors
Cirrus Identity provides identity and access management solutions, including its Cirrus Works suite supporting single sign-on, multi-factor authentication, guest accounts, and multilateral federation (InCommon, eduGAIN). It serves universities, non-profits, research organizations, and healthcare institutions to enable Zero Trust and collaboration within the research and education community.
2 investors
Clairvoyant provides an enterprise software control plane that inspects and governs every package, update, extension, and AI-generated artifact crossing an organization's software perimeter, integrating with tools like SCCM, Intune, Jamf, secure web gateways, CASBs, CI/CD pipelines, and artifact registries. It analyzes software for security, provenance, quantum-unsafe crypto, foreign ownership, and compatibility risk, then automatically approves, blocks, or escalates it for enterprise IT and security teams.
2 investors
Clarity Security provides an identity governance platform that uses Attribute-Based Access Control and automation to manage user access reviews, lifecycle management, and discovery of human and machine identities across cloud, hybrid, and on-prem environments. It serves enterprise cybersecurity teams.
2 investors
Clearspeed provides voice-based risk screening that analyzes vocal signals from a short set of yes-or-no questions, answered by phone or web, to indicate potential risk in real time. It serves organizations making trust decisions in areas such as financial fraud, benefits fraud, and defense/security screening.
2 investors
ClearVector provides cybersecurity solutions focused on protecting organizations and customer data against sophisticated attackers. The company develops threat detection and response capabilities for enterprises.
2 investors
Clique provides confidential computing infrastructure built on trusted execution environments (TEE), multi-party computation (MPC), and zero-knowledge proofs. It targets enterprise customers seeking privacy-preserving and verifiable computation.
2 investors
CloudFence provides cloud network security solutions that use identity-aware and behavior-focused approaches to detect breaches and provide visibility into cloud infrastructure. The company serves organizations seeking to secure their cloud environments.
2 investors
Cloudastructure provides an AI video surveillance platform that combines camera-agnostic computer vision, live video monitoring, and remote guarding to detect threats and deter crime. It serves property and facility operators across multifamily housing, commercial real estate, logistics/freight yards, construction sites, self-storage, and campuses.
2 investors