Security Startups

Endpoint and browser

Independent endpoint, browser-security, and device startups. Not CrowdStrike-class public mega-caps.

11 companies · ordered by name · no paid placement · About this category

A

Action1

Houston, USA

  • Bootstrapped
  • Founded 2016

Cloud-native patch management that remediates endpoints without a VPN or on-prem console.

H1 2026 ARR from six-figure deals grew 275% year over year

C

Conceal

Augusta, USA

  • Series B
  • $36M raised
  • Founded 2012

Browser-native SSE that gives zero-trust access without a VPN, VDI, or backhauled proxy.

Raised $26M Series B led by Two Bear Capital, October 2025

Cynet

Boston, USA

  • Series C
  • $79M raised
  • Founded 2014

All-in-one XDR agent for teams that cannot staff a SOC or buy seven point products.

Named Leader and Outperformer in the 2026 GigaOm Radar for XDR

E

Exein

Rome, Italy

  • Founded 2018

Runtime security built into the firmware of connected devices, robots, and other physical AI, plus build-time firmware analysis mapped to the EU CRA.

Raised $270M at a $1.7B valuation in a round led by Headline, September 2026

F

Fleet

San Francisco, USA

  • Series B
  • $52M raised
  • Founded 2020

Open-source osquery control plane for Mac, Windows, Linux, and phones, cloud or self-hosted.

Raised $27M Series B led by Ten Eleven Ventures, June 2025

G

Glow

Tel Aviv, Israel

  • Series B
  • $180M raised
  • Founded 2025

AI agents that inventory everything running on employee devices, judge it against company policy, and remove or block what fails.

Emerged from stealth with $180M across seed, Series A, and a Series B led by Sequoia, Cyberstarts, Greenoaks, and Redpoint, July 2026

Guardio

Tel Aviv, Israel

  • Series B
  • $127M raised
  • Founded 2018

Consumer browser protection that treats everyday users like they deserve an enterprise SOC.

Raised $80M Series B led by ION Crossover Partners, November 2025

H

HarfangLab

Paris, France

  • Series A
  • $33M raised
  • Founded 2018

ANSSI-certified French EDR for buyers who cannot put a US cloud agent on sensitive endpoints.

Added Attack Surface Management to its endpoint platform, September 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

T

ThreatLocker

Orlando, USA

  • Series F
  • $480M raised
  • Founded 2017

Default-deny allowlisting that stops unapproved software and AI agents from running at all.

Raised $190M Series F led by Elephant, July 2026

V

Vicarius

New York, USA

  • Series B
  • $60M raised
  • Founded 2016

Vulnerability remediation that actually patches, not another scanner that files tickets.

Named in Forrester's Q1 2026 Proactive Security Platforms Landscape

About this category

About endpoint and browser

This is the live catalog slice for the Endpoint and browser category. A company appears here only when its primary category matches, and every entry carries a 2024 to 2026 proof-of-life signal recorded with a source link. A full page-unique intro for this category ships in a later polish pass.

How order works

Listings are the full live catalog slice for this primary category, sorted alphabetically by name. This is not a scored quality ranking and there is no paid placement. Aevral is a disclosed house listing under the same rules (live, no pin). See /transparency.

11 companies. Catalog last reviewed 2026-08-23. Page copy reviewed 2026-08-23. Next review by 2026-09-23. Ordered by name. No paid placement.