Cybersecurity Startups

Abstract has built an AI-powered composable SIEM platform that enables organizations to detect threats, route security data to any destination without vendor lock-in, and migrate between different SIEM solutions. The platform serves enterprise security teams and helps simplify security data operations and threat detection.

3 investors

Acyber provides offensive security testing and red team services, offering custom tooling and platform-based vulnerability discovery for commercial and government clients in the United States.

3 investors

Advens is a cybersecurity company that protects the digital systems and data of businesses and institutions against threats. It positions itself around safeguarding organizations so they can carry out their missions securely.

3 investors

Afero develops an IoT platform that enables manufacturers to build and secure connected devices across consumer, industrial, and enterprise applications. The platform powers millions of devices for 200+ product categories and provides security, reliability, AI-ready data, and over-the-air update capabilities.

3 investors

Agency provides outsourced security and compliance operations for enterprise companies, combining forward-deployed U.S.-based compliance engineers with proprietary AI. The platform offers virtual CISO services, control implementation, evidence collection, continuous monitoring, vendor risk assessment, and penetration testing.

3 investors

Agilicus provides a cloud-native Zero Trust Network Access platform that gives users secure, client-less and VPN-free connectivity to resources such as web applications, remote desktops, databases, and industrial control systems (PLCs, SCADA, HMIs, building management systems). It targets organizations with critical infrastructure and operational technology, offering federated identity, single sign-on, multi-factor authentication, and per-resource access control for employees, contractors, and vendors.

3 investors

Aiba offers Amanda, a content moderation product for teams responsible for trust, safety, and risk on online platforms. It works with a company's existing tools, policies, and data to support migration and moderation across supported platforms.

3 investors

Aikido provides integrations that deliver notifications from its security platform directly into team messaging applications.

3 investors

AiStrike builds an AI-native security operations platform that uses agentic AI to help organizations reduce alert noise, accelerate threat response, and modernize security operations. The platform serves enterprise security teams managing complex threat detection and incident response.

3 investors

AKUA develops cybersecurity solutions and IoT/supply chain SaaS platforms, serving enterprise customers in government defense and commercial markets.

3 investors

Alert Logic delivers managed security services including threat detection and response, cloud security, and incident readiness for enterprises. The company is now part of LevelBlue, which operates as a global managed security services provider.

3 investors

Alethea provides an AI risk management platform that monitors online narratives and threats to help organizations identify and mitigate risks to their reputation, operations, and personnel before they escalate into crises.

3 investors

Alien provides a decentralized identity and blockchain platform that establishes proof of humanity and enables verification of AI agents. The network serves users seeking privacy-preserving authentication, human-only digital spaces, and transparent accountability for autonomous AI actions.

3 investors

Alinia builds compliance and safety guardrails for enterprise AI, detecting hallucinations and regulatory violations in LLM and agent-based applications such as RAG assistants. Its guardrails target high-stakes regulated sectors like finance and healthcare, including controls aligned with the MiFID II EU directive.

3 investors

Alterya is an AI-powered fraud prevention platform (part of Chainalysis) that connects fraud signals across crypto, digital wallets, and traditional bank accounts to detect and block authorized push-payment (APP) scams before funds leave a customer's account. It serves cryptocurrency exchanges, real-time payment platforms, payment processors, and banks for scam detection, mule/synthetic account identification, and fraud-loss reduction.

3 investors

Anametric develops chip-scale quantum photonic (QPIC) devices for cybersecurity applications, drawing on semiconductor design expertise and research commercialized through a partnership with Southern Methodist University. The company works with the Air Force Research Lab and Army Research Lab on quantum photonic chip designs and is developing its first generation of quantum photonic products.

3 investors

Anecdotes offers an AI agent-based Governance, Risk, and Compliance (GRC) platform that automates evidence collection, risk management, control mapping, and gap detection. It serves enterprise and multi-entity compliance programs, supporting 60+ frameworks such as NIST, ISO 27001, and HIPAA.

3 investors

Apiiro provides application security tools for agentic AI development, including API security, secrets management, supply chain security, and code scanning capabilities built on an AppSec Data Fabric platform.

3 investors

ApolloShield develops counter-unmanned aircraft systems (cUAS) and drone detection and neutralization technology using artificial intelligence and radio frequency fingerprinting. The company serves government agencies and other organizations needing drone threat detection and mitigation capabilities.

3 investors

Arqit provides encryption intelligence and quantum-safe security solutions that help organizations identify cryptographic vulnerabilities, manage post-quantum cryptography migration, and protect data against current and future threats including adversarial decryption.

3 investors

Artemis is an AI-native cybersecurity platform that detects and eliminates cyber threats for enterprises. The platform replaces traditional SIEMs with intelligent threat detection powered by AI/ML, delivering precise alerts with actionable context at lower cost.

3 investors

Asimily provides an exposure management platform that inventories, prioritizes, and mitigates cybersecurity risk across IoMT, IoT, IT, and OT devices. It offers device visibility, MITRE ATT&CK-based vulnerability analysis, network segmentation orchestration, patching, and threat detection to help organizations meet compliance requirements such as HIPAA, FDA, and NIST.

3 investors

Astelia is a cybersecurity company founded by former Israeli national red team leaders that provides visibility into attack vectors for security teams across organizations of all sizes.

3 investors

Astra builds a continuous offensive pentest platform that helps businesses identify and remediate security vulnerabilities. The platform serves thousands of businesses seeking to improve their security posture.

3 investors