Cybersecurity Startups

Sodot provides self-hosted key management infrastructure based on MPC (multi-party computation) and TEE (trusted execution environment) for securing crypto assets and transactions. It offers B2B self-custodial wallets and key management for banks, trading operations, and stablecoin/payment providers, with security audits and enterprise policy controls.

2 investors

SolidCore captures and stores prompts, responses, configuration data, and metadata from generative AI interactions at the API layer, creating an immutable system of record for enterprises. It provides visibility, risk detection, and compliance monitoring against frameworks like NIST AI RMF, ISO 42001, and the EU AI Act for security, compliance, legal, and ML platform teams.

2 investors

Solvo provides a cloud security posture management (CSPM) platform with automated remediation to help security and engineering teams identify and address threats, vulnerabilities, and compliance issues across multi-cloud environments. It integrates with existing security and CI/CD tooling; the company was acquired by CYE.

2 investors

Sophos provides managed detection and response (MDR) services that use machine learning and behavioral analysis to identify threats and coordinate rapid incident response for enterprise customers. The service includes 24/7 human analyst validation, threat investigation, and attack response to reduce business risk and downtime.

2 investors

The sourcefire.com domain now redirects to Cisco's Security portfolio, a suite of integrated cybersecurity products spanning network, cloud, endpoint, and application protection built on a unified, AI-driven platform. It serves organizations of all sizes with threat detection, zero trust access, cloud/AI workload protection, and automated response, and includes technologies such as Splunk and Talos threat intelligence.

2 investors

Source ID provides AI-powered identity verification and KYC/KYB solutions for businesses and financial institutions in emerging markets. The platform automates customer onboarding, fraud prevention, and regulatory compliance using biometrics and real-time data validation.

2 investors

Soveren provides data discovery, monitoring, and intelligence tools that help companies manage sensitive data in compliance with regulations and business rules. It serves enterprises seeking to avoid building and maintaining in-house data governance platforms.

2 investors

SpectralOps provides a developer-focused security platform (Spectral) that continuously scans code, logs, and other assets to detect exposed secrets, misconfigurations, and supply chain risks before data breaches occur. It integrates with CI systems, Git workflows, and source repositories, and lets teams build custom detectors with its SPEQL query language to enforce security and compliance policies.

2 investors

Spectrum Labs provides content moderation and abuse intelligence for online communication platforms and AI systems, protecting users from safety threats across social media, messaging, and generative AI applications.

2 investors

Spectrum is a security platform that automates detection authoring, coverage monitoring, and threat research across SIEMs, EDRs, and data lakes. The platform enables security teams to identify detection gaps, create production-grade detections, and maintain resilient coverage across their security infrastructure.

2 investors

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.

2 investors

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.

2 investors

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.

2 investors

Stamus Networks develops Clear NDR, a network detection and response system built on the Suricata open-source engine that converts network traffic into security insights for security operations teams. It serves financial institutions and government agencies, and runs a podcast called Blue Team Diaries featuring conversations with security defenders.

2 investors

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.

2 investors

Steg.AI trains deep learning models for watermarking and data poisoning, offering access through APIs, web applications, and integrations with creative software and document storage platforms.

2 investors

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.

2 investors

Sternum provides an embedded security and observability platform for IoT and connected device manufacturers, using patented runtime integrity verification (EIV) to prevent memory and command injection attacks, monitor device fleets, and detect threats with AI. Its agentless on-device solution serves manufacturers across sectors such as medical devices, supporting over 50 platforms with low performance overhead.

2 investors

StirlingX is a technology and operations company founded by veterans of UK military and intelligence units, emphasizing reliable systems, operational discipline, and rigorous security. The page describes the founders' background and approach but does not specify a concrete product or target customer.

2 investors

StitchFlow provides visibility and automation tools for cloud-native IT teams managing complex business and application sprawl in modern organizations.

2 investors

STORES 株式会社 provides tools for small and mid-sized retailers to digitize their operations, including online store creation, POS registers, cashless payments, online booking systems, and app building. The company serves Japanese shop operators, offering combinable services to run and grow their businesses more efficiently.

2 investors

Straddle builds an identity-first API platform for account-to-account payments that integrates open banking, fraud detection, and multi-rail money movement. The platform enables businesses to embed fast, cost-effective bank-to-bank payment capabilities into their applications.

2 investors

Strider provides data and analytical services to identify organizations connected to strategic infrastructure projects and reveal links between commercial entities and government/military actors, particularly focused on People's Republic of China activities in Latin America and the Caribbean.

2 investors

StrongestLayer is an AI-native email security platform that uses a multi-LLM engine (TRACE) to analyze the intent, sender, and infrastructure behind emails and detect phishing that bypasses traditional signature-based filters. It deploys via API to Microsoft 365 and Google Workspace and delivers pre-investigated, explainable verdicts for security operations teams.

2 investors