Cybersecurity Startups
4,355 companies tagged Cybersecurity, with their investors and founders.
RiskImmune is an AI governance, GRC, and third-party risk management platform that discovers sanctioned and shadow AI tools used by employees, scores vendor risk from 200+ OSINT signals, and generates compliance evidence for frameworks like DORA, NIS2, and ISO 27001. It serves CISOs, GRC, IT security, procurement, and legal teams in financial services, fintech, healthcare, and critical infrastructure.
1 investor
RiskQ provides cyber risk quantification and third-party risk management solutions tailored to organizational needs.
1 investor
UK-based company RisksessAML Limited, a participant in the Techstars London Powered by Polygon accelerator.
1 investor
Riverbank provides offensive security assessments using autonomous AI agents paired with human operators to identify vulnerabilities in organizational systems. The company targets the penetration testing market by using AI-driven approaches to discover issues that conventional vulnerability scanning tools overlook.
1 investor
Rock Solid Knowledge creates technology solutions for organizations seeking to achieve their business goals. The company operates as a certified B Corporation committed to social and environmental responsibility, including carbon neutrality and gender equality initiatives.
1 investor
AI DR is a real-time detection and response platform that monitors and secures AI agent interactions by detecting and blocking threats such as prompt injection, data exfiltration, privilege escalation, and tool misuse. It is built for security teams to enforce policies and prevent attacks across complex AI workflows.
1 investor
Rogue is an anonymous blog covering operational security, technical experiments, and advertising technology topics related to the surveillance economy and ad fraud.
1 investor
Root Evidence provides security assessment and evidence management services for cybersecurity professionals and organizations. The company serves teams focused on attack surface management and security strategy.
1 investor
Rubetek develops and manufactures smart home devices and engineering systems, including IoT devices and video surveillance with onboard analytics and facial recognition, for residential buildings and property management companies. The company designs its circuitry, firmware, enclosures, and interfaces in-house and produces its electronics at its own factory in Oryol, Russia.
1 investor
Saepio is a UK cyber security specialist providing independent advisory services, security awareness programmes, and technical implementation across cloud, SaaS, identity, data and incident response. It serves security leaders and organisations looking to benchmark their posture against recognised frameworks and mature toward a risk-led information security programme.
1 investor
SafeOnline is a data protection and GDPR compliance service for business partners seeking to safeguard sensitive information.
1 investor
SafeDep builds infrastructure to make open source software safer and more trustworthy, focusing on software supply chain security for developers and organizations. It offers tools to help protect and secure open source dependencies.
1 investor
Safeguard-Me provides a digital platform for managing identity verification, DBS checks, qualifications, and references through a single solution. It consolidates what previously required multiple tools and manual processes, allowing organizations to complete complex verification procedures in minutes rather than hours or days.
1 investor
SafeHill is a cybersecurity company that combines AI and human ethical hackers to help security teams identify and prioritize real security exposures and attack paths. The platform targets security teams and CISOs seeking threat exposure management and penetration testing validation without alert fatigue.
1 investor
SafeKey Lab builds cybersecurity for autonomous spacecraft, offering space domain awareness, onboard defense for the command bus and onboard AI, and adversarial red-team testing through its Vela platform. It serves government space programs, commercial constellation operators, and satellite manufacturers, and offers an adjacent module for AI security in the ground segment.
1 investor
Safend offers a data protection suite that secures sensitive data through encryption, port and device control, and content inspection to help organizations meet compliance standards such as GDPR, HIPAA, PCI, and SOX. It serves government agencies, financial services, healthcare organizations, educational institutions, and other regulated sectors.
1 investor
Safend develops a data protection suite that secures sensitive data through encryption, port and device control, and content inspection to help organizations meet compliance requirements such as GDPR, HIPAA, PCI, and SOX. It serves sectors including government agencies, financial services, healthcare, education, and law enforcement.
1 investor
SafeSync provides security fundamentals for businesses of all sizes, offering risk reviews of operations and assets, tailored technology/security/AI policies, gamified security training, and third-party/supply-chain risk assessments. It also helps organizations build or improve their IT and security strategy.
1 investor
Sagenso is a cybersecurity company that protects businesses from digital threats through IT security services, IT auditing, and advanced threat detection. Its offerings address risks such as data encryption attacks and ransomware for corporate clients.
1 investor
Sahl monitors compliance controls and risk posture across multiple frameworks in real time, enabling teams to approve decisions without manual spreadsheet management.
1 investor
SAIF CHECK audits, evaluates, and secures AI, agentic, and quantum systems for government, enterprise, and sovereign clients, with assessments running inside the client's own infrastructure and mapped to regional and international regulatory frameworks. The company focuses on AI governance, risk, compliance, and cybersecurity across the Gulf and MENA region.
1 investor
SaiFlow provides cybersecurity for distributed energy infrastructure, using unified cyber and energy data with AI to protect it in real time. It serves the energy sector, focusing on securing distributed energy resources during the energy transition.
1 investor
Salaam Technology provides cybersecurity, IT service management, operations management, and data analytics services to help businesses protect digital assets and improve operational efficiency. It works with organizations across various sectors as an IT consulting and services partner.
1 investor
SalesLynk provides prospect intelligence and cyber security information to help sales teams research and prepare for customer interactions.
1 investor









