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Corelight

Network Security

Open network detection and response platform built on Zeek, Suricata and machine learning.

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73/100Meaningful Innovator

Overview

Corelight, founded by the creators of the Zeek network monitor, sells sensors and cloud offerings that produce structured network evidence for detection and investigation.

Its Open NDR platform integrates Zeek, Suricata and YARA, and the company has raised roughly $300M across several rounds.

Innovation Matrix Assessment

Innovation Velocity 7/10

Evolves Zeek-based telemetry into NDR with analytics.

Operational Value 8/10

Rich network evidence aids hunts and investigations.

Market Momentum 8/10

$75M Series D (2021) led by Energy Impact Partners; later Series E reported by aggregators only.

Category Disruption 6/10

Open-source foundation differentiates but NDR is crowded.

Real-World Efficacy 7/10

Zeek's wide use in government and research gives credible track record.

Enduring Relevance 8/10

Network evidence remains valuable as encrypted traffic grows.

Why CISOs Should Care

Provides high-fidelity network evidence that supports detection and incident scoping.

What Makes It Different

Built on open-source Zeek used widely by defenders.

The Matrix Verdict

73/100 — MEANINGFUL INNOVATOR

Corelight is a Meaningful Innovator: strong foundation and evidence, moderate disruption.

Editorial Note: Claims vs. Verified Findings

Founding year and later funding vary among aggregator sites; treat as approximate.

Sources

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