Cybersecurity Startups

Spin.AI provides unified SaaS security and data protection across Google Workspace, Microsoft 365, Salesforce, Slack, and Atlassian through a single platform. The solution combines backup and recovery with ransomware detection, browser security, and security posture management for enterprise organizations.

1 investor

archTIS' Spirion offers sensitive data discovery, governance, and protection solutions for enterprises seeking to locate, classify, and safeguard confidential information across their infrastructure. The platform addresses data security and regulatory compliance requirements across various industry sectors.

1 investor

Defakto provides an identity security platform for non-human actors such as workloads, CI/CD jobs, APIs, machines, and AI agents, issuing short-lived, verifiable identities instead of secrets, API keys, or standing access. Built on SPIFFE and other open standards, it targets enterprise security teams and integrates across cloud, on-premises, and hybrid infrastructure.

1 investor

SpoofSense provides an API and native SDKs (web, iOS, Android) for passive facial liveness, deepfake screening, and camera injection-attack detection to catch synthetic identities and presentation attacks. It serves risk, compliance, and identity verification teams in KYC, onboarding, lending, and step-up authentication workflows.

1 investor

SpoofSense provides an API and native SDKs for web, iOS, and Android that detect facial liveness, deepfakes, presentation attacks, and camera injection attacks during identity verification. It serves risk, compliance, and fraud teams in identity-critical industries such as KYC onboarding, lending, and step-up authentication.

1 investor

sproof is a European provider of a modular platform for digital signatures and electronic identity verification, offering eIDAS-compliant, ISO 27001-certified signing and identification workflows. It serves companies across sectors such as utilities, universities, and industrial firms, with data hosted in Europe and no ties to US providers.

1 investor

Squadra is a seed-stage venture capital firm that provides hands-on operational support, network connections, and go-to-market help to early-stage startups. It has particular ties to the national security, defense, and cyber sectors.

1 investor

StableStack is a static analysis tool designed to catch structural issues and security vulnerabilities in AI-generated code across Python, JavaScript, TypeScript, and C#. It runs locally on developers' machines to detect patterns and bugs that AI assistants commonly introduce without requiring cloud processing or telemetry.

1 investor

StackBob.ai provides Agentic Identity Governance and Administration (IGA) using autonomous agents to bring any application into identity governance workflows without relying on APIs, SCIM, or pre-built connectors. It targets enterprise identity and access management teams seeking to govern applications left uncovered by legacy IAM tooling.

1 investor

Stacklet builds an agentic AI platform for cloud infrastructure governance, applying policy, cost optimization (FinOps), security, and compliance controls automatically across cloud and AI workloads. Built on the Cloud Custodian open-source community, it targets FinOps practitioners, cloud, and platform engineering teams.

1 investor

Stacksi provides software that automates the completion of enterprise security questionnaires by parsing uploaded documents and identifying gaps against security standards. It serves salespeople and executives at fast-growing enterprise startups, helping them pass security audits and improve their security programs.

1 investor

Staqu Technologies offers JARVIS, an AI-powered retail analytics platform that uses video analytics and footfall tracking to monitor customer behavior, optimize store operations, and improve retail performance. The software enables retailers to analyze visitor patterns, manage queue times, reduce shrinkage, and drive data-driven decisions across multiple store locations.

1 investor

Staris provides automated penetration testing and vulnerability validation for security consultants and partners, delivering proof-of-exploit findings with PR-ready patches rather than unverified scanner output.

1 investor

Starknex is a boutique cybersecurity firm specializing in offensive security capabilities and services. The company serves clients across healthcare, government, emerging technology, education, transport, and finance sectors both nationally and internationally.

1 investor

Starseer builds security instrumentation for AI systems using mechanistic interpretability to provide visibility and detection capabilities at runtime. The platform helps organizations understand what AI models are doing internally and detect anomalies across different model architectures.

1 investor

Start9 promotes decentralized personal computing that gives individuals control over their own data and communications, aiming to remove trusted third parties from the human/computer relationship. Its focus areas include privacy, encryption, and open decentralized network protocols such as the Internet and Bitcoin.

1 investor

Startup Wise Guys is an accelerator and investor that supports early-stage tech founders across Europe and Africa through mentorship, investment, and specialized vertical programs. The organization has been operating since 2012 and works with founders across various sectors to help them grow and succeed.

1 investor

StartupYard is Central Europe's leading pre-seed and seed accelerator for technology startups, offering a three-month fully remote mentorship program with funding, network access, and operational resources to early-stage tech companies. Founded in 2011 and based in Prague, it has accelerated over 125 startups from 25+ countries.

1 investor

STASH provides secure creation, access, and sharing of unstructured data with granular access controls, long-term storage, archiving, and preservation capabilities for organizations seeking to protect sensitive information from external attacks and insider threats.

1 investor

stashcat provides an encrypted messenger and collaboration platform with an integrated marketplace for secure communication, data exchange, and internal workflow organization. It serves government agencies and businesses across sectors such as defense, logistics, insurance, healthcare, media, and retail.

1 investor

Stealthium provides a runtime observability and security platform for GPUs and AI workloads, offering multilayer visibility across single nodes and multi-cluster deployments. It correlates GPU metrics, traces, logs, and health monitoring with security events to detect anomalies and threats, with support for the NVIDIA software stack, CUDA, and major AI frameworks.

1 investor

Stealthium provides a runtime observability and security platform for GPUs and AI workloads, correlating low-level GPU metrics, kernel traces, and logs into unified insights across single or multiple nodes and clusters. It monitors GPU telemetry to detect unusual usage patterns and security threats, with support for the NVIDIA software stack (drivers, CUDA, toolkits) and major AI frameworks.

1 investor

Steerlab provides AI agents that help presales teams generate tailored proposals and respond to customer questions, with an in-tool copilot and Slack bot. It also offers business intelligence tools such as a Go/No-Go agent and competitor bias detection to help teams decide which opportunities to pursue.

1 investor

StepSecurity provides a platform to prevent, detect, and respond to software supply chain attacks across developer machines, code repositories, and CI/CD pipelines. It offers security controls such as Harden-Runner, GitHub Actions monitoring, and a threat intelligence team focused on identifying supply chain attacks.

1 investor