Security Startups

Company directory

21 companies. Sorted by name. No paid boost.

A

Aevral

Listed by Better ISMS (same rules as everyone)

  • Seed
  • Founded 2026

Security review, handled. Your AI agents keep shipping; Aevral, a security agent, reviews their changes for security problems and suggests the fix, on pull requests and whole-repo scans, live and self-serve. Open-source models, processed in the US today; an EU-only option is announced. By ISMS Copilot.

Live and self-serve at aevral.com, 2026-09-07

  • Seed
  • $50M raised
  • Founded 2025

Context firewall for AI agent fleets: discovers agents, continuously vets the skills, plugins, and MCP servers they touch, and blocks what fails.

Emerged from stealth with $50M raised across two seed rounds led by Sequoia and Greenoaks, September 2026

Arnica

Alpharetta, USA

  • Seed
  • $7M raised
  • Founded 2021

Pipelineless SAST, SCA, secrets, and IaC that scans every push and talks to the developer in Slack.

Shipped PR secrets scanning and secrets-in-HEAD detection, June 2026

B

Boost Security

Montreal, Canada

  • Seed
  • $16M raised
  • Founded 2020

Pipeline and package gates that block supply-chain junk before AI-written code swallows it.

Raised $4M and acquired SecureIQx and Korbit.ai, May 2026

C

Corgea

San Francisco, USA

  • Seed
  • $2.6M raised
  • Founded 2023

AI SAST that hunts broken auth and business-logic bugs, then writes a patch developers can merge.

Raised $2.6M seed led by Shorooq, with Y Combinator participating, November 2024

Corma

Tel Aviv, Israel

  • Seed
  • $60M raised
  • Founded 2025

Defensive cybersecurity AI lab training its own foundation model to power agents that work inside security teams.

Raised a $60M seed round led by Sequoia Capital, August 2026

D

Descope

Los Altos, United States

  • Seed
  • $88M raised
  • Founded 2022

Customer identity workflows that let product teams ship login, MFA, and agent auth without an IAM rebuild.

Closed $35M seed extension, $88M total, September 2025

H

Hadrian

Amsterdam, Netherlands

  • Seed
  • $14M raised
  • Founded 2021

Outside-in autonomous hacker that discovers, exploits, and validates external exposure continuously.

Shipped Sense, Plan, Attack AI agents to operationalize CTEM, November 2025

K

Keep Aware

Austin, USA

  • Seed
  • $2.4M raised
  • Founded 2022

Browser detection and response that watches behavior inside existing Chrome and Edge sessions.

Published The State of Browser Security Report 2026 from production telemetry

Knostic

Tel Aviv, Israel

  • Seed
  • $11M raised
  • Founded 2023

Need-to-know access control so Copilots, coding agents, and MCP tools stop oversharing.

Raised $11M to ship need-to-know controls for enterprise AI, March 2025

L

Lasso Security

Tel Aviv, Israel

  • Seed
  • $6M raised
  • Founded 2023

Discovery, posture, automated red team, and gateway runtime for models and agents.

Published Securing Agentic AI: The Intent Security Framework, March 2026

M

Manifold

San Diego, United States

  • Seed
  • $8M raised
  • Founded 2025

Detection and response for AI agents on employee endpoints: maps what each agent touches, baselines its behavior, and stops the ones that go rogue.

Raised an $8M seed round led by Costanoa Ventures, March 2026

O

Oak

Tel Aviv, Israel

  • Seed
  • $60M raised
  • Founded 2025

One identity platform for human, machine, and AI agent identities that compares granted access with real use and drives remediation continuously.

Emerged from stealth with a $60M seed round co-led by Accel, Greylock, and CRV, July 2026

P

Pillar Security

Miami, USA

  • Seed
  • $9M raised
  • Founded 2023

Inventory, agentic red team, and self-improving runtime guardrails for the agent lifecycle.

Named a 2026 Gartner Cool Vendor in AI Software Security

Pixee

Baltimore, USA

  • Seed
  • $15M raised
  • Founded 2022

Agentic AppSec that triages scanner noise and opens mergeable fix PRs in your house style.

Raised $15M seed led by Decibel and Wing VC, May 2025

R

Runlayer

New York, USA

  • Seed
  • $11M raised
  • Founded 2025

MCP gateway plus identity, observability, and threat detection for enterprise agents.

Emerged from stealth with $11M seed from Khosla (Keith Rabois) and Felicis, November 2025

S

Simbian

Mountain View, USA

  • Seed
  • $10.5M raised
  • Founded 2023

Self-improving AI SOC that unifies defense, hunting, and offense on one agent family.

Named to the CB Insights AI 100, May 2026, after 15x customer growth in 2025

T

Terra Security

Tel Aviv, Israel

  • Seed
  • $8M raised
  • Founded 2024

Agentic pentest platform with a human in the loop across web, API, network, and AI surfaces.

Raised $8M (Q2 2025) to scale agentic continuous pentesting

U

Unosecur

Berlin, Germany

  • Seed
  • $5M raised
  • Founded 2021

Agentless identity fabric for human, machine, and AI identities across hybrid cloud and on-prem.

Raised $5M seed led by VentureFriends and DFF Ventures, April 2025

X

Xygeni

Pamplona, Spain

  • Seed
  • $4M raised
  • Founded 2021

SCA plus malware and pipeline security for teams whose code is increasingly written by agents.

Won Global Infosec awards for ASPM and GenAI application security, 2026

Z

ZeroPath

San Francisco, USA

  • Seed
  • Founded 2024

AI-native SAST for business logic, auth bypasses, and chained exploit paths, with generated patches.

Named an RSAC 2026 Innovation Sandbox Top 10 finalist

Directory · Security Startups