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116 startups

Top Security Startups in 2026

Cybersecurity, identity, and compliance startups

Last updated

2026-07-17

The Security category collects 116 tech startups indexed on techstartupslist.com. Cybersecurity, identity, and compliance startups. Notable companies in this space include AccessOwl, AeroFS, Agency, Alter, and AmberBox Gunshot Detection — each profile links to the company's own site, lists open roles when their careers page is scrapable, and surfaces team size, founding year, and category tags. Common themes across these Security startups: Security, B2B, SaaS, Cybersecurity, Developer Tools. Filtering by any of these tags in the directory narrows the list further. Geographically, the Security index leans toward San Francisco, New York and Palo Alto, with the rest spread across remote-first teams and other hubs. Many of these companies came in through the Y Combinator scrape (batches F24, F25, S05, S10); 2 are currently flagged as trending based on recent momentum signals; and the index refreshes daily so this page stays current as funding rounds close, jobs open, and new entrants ship. For a broader view, see the full directory or jump to Security jobs to apply directly — every outbound link goes to the company's own site, not a paywalled middleman.

TRM is building a safer financial system for billions of people.

FintechMachine LearningCrypto / Web3

Vanta—the proven leader in automated compliance helping startups…

B2BComplianceSecurity

Managing your Employees' Access to SaaS

SaaSB2BCompliance

Secure Enterprise Collaboration.

CollaborationSecurityEnterprise

Agency replaces traditional security and compliance headcount with AI.

SaaSB2BCompliance

Secure access control and authorization platform for agent workflows

AIOpsDeveloper ToolsDevSecOps

AmberBox Gunshot Detection

Detect Gunshots | Inform Law Enforcement | Empower First Responders

AI company transforming enterprise physical security to prevent…

Computer VisionSecurityAI

Anjuna enabled organizations to trust any infrastructure

Cloud Workload ProtectionSecurity

Apozy makes every website safe to browse

Appcanary tracks the dependencies you use in your apps and servers…

SecurityMonitoring

Argument Computer Corporation

Accelerate verifiable computing

Crypto / Web3SecurityCryptography

Authy is a Two-Factor Authentication platform for developers

Authorization Infrastructure securing AI at OpenAI, Zoom, & more

Artificial IntelligenceDeveloper ToolsSecurity

Frontier AI Defenses for Social Engineering Attacks

The authentication framework for TypeScript

Developer ToolsSecurityOpen Source

AI-powered code security

DevSecOpsMachine LearningCybersecurity

Zero-Knowledge security without seed phrases or backup codes

Developer ToolsSaaSCrypto / Web3

Guarantee your agents use the right evidence before they act.

SaaSComplianceSecurity

Canix makes it easy to get and stay compliant as a cannabis business.

Autonomous security testing for web apps, APIs, cloud, and AI systems

Block bots & bad behavior

Developer ToolsSaaSSecurity

The Authorization Layer for AI Agents

Artificial IntelligenceSecurityOpen Source

Automate security and privacy reviews

Artificial IntelligenceGenerative AISecurity

Clickfacts — B2B

Cloud and Container Security Platform

Cloud Workload ProtectionDevSecOpsIdentity

Detect every data leak into third-party GenAI tools

Local-first least cost routing system to reduce 80%+ token spend

Artificial IntelligenceB2BSecurity

Security Delivery Platform to orchestrate AI agents for Service…

Corgea finds, and fixes insecure code and packages autonomously.

Developer ToolsSaaSSecurity

AI Agents for Security Operations Teams

SaaSComplianceSecurity

Crosslayer Labs

Protect, monitor and defend your Internet presence

Cyberfend delivers robust, real-time web and mobile security by…

CybersecurityFraud Prevention

Cyble - World’s First Intelligence-Driven, AI-Native Security…

Shifting the asymmetry of cyber security.

Secure secrets. Prevent breaches. Keep teams moving.

Developer ToolsDevSecOpsSecurity

Dyneti Technologies

Reduce payment fraud

PaymentsSecurity

Autofix your software dependencies

DevSecOpsB2BSecurity

Offensive security for the teams that are 100x outnumbered

Developer ToolsSecurityAPI

Penetration testing and bug bounty platform.

Feroot Security

AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws

ComplianceSecurityPrivacy

A credit card that drastically reduces payment fraud and gives…

PaymentsSecurity

Easiest way to set up Zero Trust Access for your team

DevSecOpsNext-gen Network SecurityB2B

Making enterprise security practices available for all companies.

Fuzzing as a Service

SecurityCybersecurity

The AI Security Engineer to Find and Fix Vulnerabilities

SaaSB2BSecurity

Agentic AI Security and Governance

Artificial IntelligenceDeveloper ToolsSecurity

Agentic Offensive Security at Scale

Your first security hire

Developer ToolsB2BInfrastructure

Hunter2 trains engineering teams in application security through…

Developer ToolsEducationCybersecurity

AI-powered Application Control

Behavioral intelligence infrastructure for anti-fraud

Unified platform for secrets, certs, and privileged access management

Developer ToolsSaaSB2B

Dynamic access controls for all data and databases

SecurityData LabelingDatabases

AI Agents for Platform Engineering

AIOpsDeveloper ToolsDevOps

Secure fraud prevention and authentication platform for developers

SaaSB2BSecurity

We're making a smart, front door camera with intercom that lets you…

Smart Home AssistantsIoTSecurity

AI for Corporate Security Cameras

The sensitive data redaction layer for AI

Artificial IntelligenceB2BCompliance

Cloud Native SIEM (alternative to Splunk/Elastic)

DevSecOpsAnalyticsOpen Source

Secure Collaboration for Technical Teams

DevSecOpsCollaborationSecurity

Simple password & identity management for teams. Acquired by LogMeIn…

SecurityEnterprise

Firmware cybersecurity

DevSecOpsHardwareGovTech

Autonomous Security Agents

Zero-trust authentication, authorization, and auditing for AI agents

Access control management app for Latam´s gated communities

The Notabene platform is the trust layer for global money movement.

FintechCrypto / Web3Regtech

The Identity Gateway for AI Agents

B2BSecurityOpen Source

YC's most popular security compliance platform (SOC 2, ISO 27001,…

SaaSB2BCompliance

Opt out software that removes your private info from the internet

SaaSConsumerSecurity

Palitronica Inc

Detect cyber attacks on critical physical infrastructure

Hard TechHardwareSecurity

Platform where autonomous companies are built

Developer ToolsSecurityWeb Development

Prembly (formerly Identitypass)

Identity Verification API for Emerging Markets

B2BIdentitySecurity

We help you get compliant while you focus on your business.

SaaSB2BCompliance

LLM Security and Compliance

Generative AISecurityCybersecurity

Real time intelligence for law enforcement & security teams.

Security auditing for Web3

Crypto / Web3Security

Autonomous Runtime Security

Developer ToolsSaaSB2B

Reality Defender

Enterprise Deepfake Detection

Artificial IntelligenceSaaSDeepfake Detection

Employee security done for you.

Low-false-positive intrusion detection for remote outdoor sites

Machine LearningComputer VisionB2B

Cybersecurity awareness for fast growing companies

Risotto auto-solves IT support requests using AI

Artificial IntelligenceB2BCompliance

AI-native on-call and incident response carefully crafted to help…

AIOpsDeveloper ToolsSaaS

Proof of Human - invisible human verification

Trust Center platform that scales customer security reviews

SaaSProductivityCybersecurity

Protects organizations from getting breached through their APIs.

Shiboleth automates lending compliance for financial institutions…

The Leader in Digital Trust & Safety

FintechMachine LearningSaaS

Runtime security for AI that self-improves

Developer ToolsSecurityCybersecurity

Smyte stops bad actors on social networks and marketplaces.

SecurityFraud Detection

Sphere Secure Workspace

Sphere Secure Workspace — B2B

Sqreen is the application security platform for the modern enterprise

DevSecOpsB2BSecurity

Automated Answers to Security Questionnaires

ComplianceCybersecurity

Data Discovery, DLP, DSPM for SaaS, Cloud, Gen AI & Endpoints

Generative AISaaSSecurity

Software that maps your infrastructure. Open core alternative to Wiz

Red teaming for AI agents

Artificial IntelligenceSecurityOpen Source

Open source alternative to Auth0 / AWS Cognito / Firebase Auth

Developer ToolsSaaSB2B

The guardrail for AI on every device

SaaSB2BCompliance

Protecting your employees against online harassment

SecurityHR Tech

Data pipeline for your security data lake.

B2BCybersecurityBig Data

Automate your cyber security risk assessments

SecurityCybersecurity

Protecting applications from malicious activity

Termius is an SSH client with team collaboration features

Developer ToolsDevSecOpsIoT Security

Encrypted AI with verifiable privacy

Artificial IntelligenceDeveloper ToolsSecurity

Tolmo is the AI security platform that secures every layer of cloud…

DevSecOpsSecurityAI

The open source AI-native security automation platform

Artificial IntelligenceSecurityOpen Source

AI infrastructure for biosecurity

Artificial IntelligenceSynthetic BiologyBiotech

Turnkey security & hassle-free cyber insurance from leading insurers

Next-gen Network SecuritySecurityInsurance

Scan your SaaS apps and instantly identify security issues

Continuous AI pentesting that finds and fixes vulnerabilities

SecurityCybersecurityAI

ai-native security engineering for mission critical codebases

Artificial IntelligenceSaaSB2B

We help security, legal and sales teams answer customer questions

Generative AISecuritySales

Custom AI harnesses for enterprises

Artificial IntelligenceReinforcement LearningSecurity

Close your outdated dependency attack vector

Artificial IntelligenceSecurityCybersecurity

Automatically find and fix your software vulnerabilities

Artificial IntelligenceDeveloper ToolsB2B

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Frequently asked questions

What are the top Security startups in 2026?

Based on our index, AccessOwl, AeroFS and Agency are among the leading Security startups tracked on techstartupslist.com. The full list ranks 116 companies in this category.

How many Security startups are in the techstartupslist.com directory?

We currently index 116 Security startups. New entries are added automatically as they are discovered from Y Combinator, Greenhouse, Ashby, and other sources.

How often is the Security category updated?

The Security listing is refreshed daily by an automated scraper that pulls from Y Combinator and other public sources. The last index update for this page was 2026-07-17.

Where can I find jobs at Security startups?

Open roles at indexed Security startups are aggregated on our jobs page at https://www.techstartupslist.com/jobs. Each role links directly to the company's official application page — we don't act as a middleman.

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