Cybersecurity Startups
4,352 companies tagged Cybersecurity, with their investors and founders.
RiPSIM develops modern eSIM infrastructure technology to replace legacy SIM systems, serving the connectivity and telecommunications industry.
2 investors
Riptides provides identity, access control, and audit trails for AI agents and traditional workloads, enforcing security at the Linux kernel level so workloads receive short-lived, just-in-time credentials instead of holding long-lived API keys. It targets security and platform teams and integrates with existing secret stores, cloud IAM, and observability tools via SPIFFE, Kubernetes metadata, and federation with AWS and GCP.
2 investors
RISC Zero builds verifiable computation technology using zero-knowledge proofs, allowing anyone to cryptographically confirm that a computation's output is correct regardless of who ran it. It targets use cases such as proving financial transactions are performed correctly and compliantly while preserving privacy, and addressing trust gaps in software supply chains.
2 investors
RiskProfiler is a platform that automates the detection, validation, and execution of takedown workflows for digital abuse and brand threats across domains, hosting providers, social platforms, and marketplaces. The platform serves security teams and enterprises seeking to protect brand integrity, reduce fraud exposure, and manage threat remediation at scale.
2 investors
Rohirrim builds generative AI software that automates RFP responses and proposal writing for government contractors and enterprises.
2 investors
Runetale provides a secure mesh network (VPN) that automates point-to-point connectivity with zero configuration, using WireGuard-based peer-to-peer encryption and least-privilege access. It targets IT and enterprise teams, integrating with SSO/OIDC providers like Okta and Microsoft Entra ID for identity-based, zero-trust access across macOS, Windows, iOS, Android, and Linux.
2 investors
RunReveal is a security operations platform that ingests, normalizes, enriches, and analyzes security logs, with AI-powered detection and response built in via native AI chat and a Model Context Protocol server. It targets security teams seeking a simpler, lower-cost alternative to legacy SIEMs, supporting models like Claude, ChatGPT, and Gemini.
2 investors
S2W provides a data operation platform using multi-domain cross-analysis technology for collecting, processing, and integrating structured and unstructured data with domain-specific language models and security guardrails. The company serves organizations seeking enhanced data utilization with built-in protections against data breaches and AI reliability concerns.
2 investors
SafeShepherd provides internet monitoring and security services to protect users' privacy and identity through continuous surveillance of online threats and data breaches.
2 investors
SafeGuard Privacy provides a software platform for legal privacy compliance, offering standardized law-based assessments, vendor due diligence, and a defensible compliance record. It also includes a Vendor Compliance Hub and integrates with the IAB Diligence Platform to speed up vendor diligence for companies managing privacy obligations.
2 investors
Safetrust provides touchless access control that upgrades existing access points, using a mobile wallet to store a virtual identity for secure entry to offices, turnstiles, elevators, parking, and other workplace resources. It serves enterprises managing building access for employees, tenants, and visitors, with cloud-based APIs and mobile SDKs to integrate with existing systems.
2 investors
Safety provides endpoint security and visibility for AI-powered development environments, helping security teams monitor and govern AI tools, packages, MCP servers, and IDE extensions across developer machines. The platform deploys agentlessly via MDM and detects malicious packages and vulnerabilities in software ecosystems like npm and PyPI.
2 investors
SafetyKit provides an AI-powered fraud detection and abuse prevention platform for online marketplaces and platforms. The system uses a Network Foundation Model to ingest user actions via SDK and API, analyze behavioral signals in real-time, and automatically investigate cases to reduce manual review burden.
2 investors
A company providing security and compilation expertise, with team experience ranging from advanced compiler development to nation-state security work and early blockchain contributions.
2 investors
Sandfly is an agentless Linux security platform that hunts for compromised systems, detecting rootkits, backdoors, cryptominers, and other intrusions across servers, cloud, embedded devices, and air-gapped networks. It offers over 1,100 pre-built detections plus customizable threat hunting modules, and is used by critical infrastructure providers.
2 investors
SandGrain develops CyberRock, a post-quantum-resilient authentication platform designed for aerospace and defense applications in Europe and NATO member states.
2 investors
Saporo provides identity exposure management software that discovers security risks across human and non-human identities, maps attack paths, and automates remediation at scale. It serves security and IT teams in enterprises managing complex identity environments.
2 investors
Sarcophagus is a decentralized dead man's switch built on the BASE blockchain. It provides an automated, trustless mechanism for conditionally releasing data, operating within the crypto and Web3 space.
2 investors
Satorus Group builds Sidney, an AI intelligence analyst that runs investigations end to end — planning research, pulling from surface, deep, and dark web sources, grading source reliability, and producing sourced, decision-ready intelligence reports. It serves intelligence, risk, and security teams for use cases such as crisis monitoring, country and geopolitical risk, threat assessment, due diligence, sanctions screening, financial crime, and reputational risk.
2 investors
Savi provides cybersecurity protection for families and individuals to safeguard against AI-enabled scams and fraud. The company combines expertise in intelligence, cybersecurity, and consumer product development to address the fastest-growing crime in America.
2 investors
SailPoint provides an identity security platform that governs and secures access for human, machine, and AI agent identities across enterprise environments. It continuously assesses risk, context, and behavior to adjust access, automate decisions, and enforce least privilege for large enterprises.
2 investors
SCADAfence provides OT cybersecurity software, now offered as Honeywell Cyber Insights, an on-premises solution for asset discovery, threat detection, and vulnerability management in industrial control system (ICS), OT, and IoT networks. It serves industrial organizations seeking to monitor and reduce cyber risk across single or multiple sites.
2 investors
Scalarr builds machine learning-based tools to detect and prevent mobile app install ad fraud, analyzing ad campaign data from click through post-install events. It serves mobile-first, hi-tech companies and marketing teams, and also offers data consulting services on fraud trends and patterns.
2 investors
Scamnetic develops scam and fraud protection technology aimed at defending consumers and organizations from financially motivated cybercrime such as identity theft and scams. The company applies machine learning and AI-based detection to identify fraudulent activity.
2 investors
















