Cybersecurity Startups

Spanning, a Kaseya company, provides SaaS backup and recovery features aimed at improving service delivery and workflow efficiency for its customers.

1 investor

Sparkle AI, based in the United States, builds tooling for product security and compliance work. The software is aimed at teams responsible for meeting security requirements and audit obligations.

1 investor

SpartanX offers an autonomous, continuous AI red-teaming and penetration-testing platform that hunts for exploitable vulnerabilities across web, mobile, network, cloud, API, and AI/LLM systems, validating findings with proof-of-concept evidence. It targets enterprises with compliance requirements (PCI DSS, NYDFS, GLBA, DORA) and provides developer-ready remediation with framework mapping.

1 investor

Spearfish develops EverFend, software that detects the manipulation patterns behind authorized fraud — such as elder financial exploitation — before a transfer is requested, giving families early warnings and financial institutions real-time risk data from client conversations. It serves financial institutions and families affected by scam-based authorized fraud.

1 investor

Specter provides AI-based monitoring that analyzes video feeds from critical infrastructure and public sites to detect anomalies such as intruders, unknown vehicles, leaks, crowd incidents, and abnormal emissions. It serves operators of facilities like power plants, oil rigs, data centers, substations, stadiums, shipping docks, and nuclear plants.

1 investor

SPECTRA certifies managed service providers (MSPs) through its Certification of Resilience program, positioning them as trusted cybersecurity providers for businesses and their insurers. The company operates at the intersection of cyber risk management and cyber insurance, serving MSPs and the insurance market.

1 investor

Spectronix develops multi-sensor monitoring systems using computer vision and AI to detect human behavior and vital signs in monitored spaces. The technology serves security and safety applications in high-security environments through privacy-preserving skeletal visualization.

1 investor

Spera (now part of Okta as Identity Security Posture Management/ISPM) provides continuous scanning and analysis of an organization's identity graph to detect risks across human and non-human identities, including shadow admin accounts, dormant users, missing MFA, and permission creep. The platform helps security and IT teams prioritize and remediate identity vulnerabilities and support compliance.

1 investor

SPHERE is a software company whose SPHEREboard platform automates identity risk reduction, providing visibility, ownership mapping, and least-privilege enforcement for enterprises. It focuses on identity hygiene and identity intelligence for highly regulated, security-conscious organizations such as financial services firms.

1 investor

Sphere Secure Workspace offered a secure workspace product, available via demonstration on request.

1 investor

Spherical Defense develops an API security platform using deep learning to detect and prevent attacks by identifying anomalies in API traffic patterns. The company serves organizations seeking to protect their applications from API-based security threats.

1 investor

Spice Labs provides software scanning and cryptographic analysis tools that generate artifact dependency graphs of software systems and assist organizations in managing their transition to post-quantum cryptography. The platform serves development teams and enterprises seeking to understand software dependencies and remediate security vulnerabilities.

1 investor

SpiderDAO is a hardware-based DAO governance framework built on Polkadot that combines hardware and software tools to enable fairer on-chain voting and mitigate issues like plutocracy, vote-buying, and whale manipulation. It also provides tools aimed at bringing online privacy to end users.

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

sproof provides a modular platform for digital signatures and identity verification services compliant with EU regulations (eIDAS). The platform serves European enterprises with APIs and integrated modules for contract signing, identity verification, and mandate processing.

1 investor

Spyderbat provides threat detection, investigation, and response for cloud, Kubernetes, and Linux environments, using eBPF to record system behavior for continuous visibility, automated investigation, and real-time protection. The company targets security teams and was acquired by AGT Networks in 2025.

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

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

Stacktrace provides software that lets teams monitor the actions of AI agents, flag risky behavior, and notify responsible staff, while giving administrators controls to enforce policies that block unapproved tools like MCP servers and plugins before agents can use them. It serves teams operating AI agents in the agent monitoring and governance category.

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