Open source focus

Open Source Alternatives to ActiveFence

11 open source New Media options similar to ActiveFence, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Socket64
Software Supply Chain SecuritySan Francisco, United States$60.0M
Socket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.
Open source
Backslash Security56
CybersecurityTel Aviv, Israel$27.0M
Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.
Open source
Puck52
Endpoint SecurityUnited States
Open-source, AI-driven endpoint investigation tool for security teams.
Open source · Self-hostable
0sec11
Cybersecurity
An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
OWASP38
CybersecurityRaleigh, USA
A global non-profit foundation dedicated to improving software security through open community collaboration.
Open source · Self-hostable
Falco10
Cybersecurity
Open-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.
Open source · Self-hostable
Umbrasec9
Cybersecurity
Independent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
Openthreatgrid8
Cybersecurity
Open honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.
Open source
Logz.io63
EnterpriseTel Aviv, Israel$132.0M
Logz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.
Open source · Self-hostable
CloudQuery53
EnterpriseSan Francisco, United States$18.5M
Open-source data integration platform for security and infrastructure teams.
Open source · Self-hostable
Velum Labs49
Machine LearningSan Francisco, United States$500K
Firewall that controls access to information across AI and humans
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
SocketSocket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.	Software Supply Chain Security	Open source	San Francisco, United States	$60.0M	64
Backslash SecurityAgentic endpoint security for AI coding, providing visibility, governance, and real-time protection.	Cybersecurity	Open source	Tel Aviv, Israel	$27.0M	56
PuckOpen-source, AI-driven endpoint investigation tool for security teams.	Endpoint Security	Open source · Self-hostable	United States	—	52
0secAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.	Cybersecurity	Open source · Self-hostable	—	—	11
OWASPA global non-profit foundation dedicated to improving software security through open community collaboration.	Cybersecurity	Open source · Self-hostable	Raleigh, USA	—	38
FalcoOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.	Cybersecurity	Open source · Self-hostable	—	—	10
UmbrasecIndependent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.	Cybersecurity	Open source	—	—	9
OpenthreatgridOpen honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.	Cybersecurity	Open source	—	—	8
Logz.ioLogz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	$132.0M	63
CloudQueryOpen-source data integration platform for security and infrastructure teams.	Enterprise	Open source · Self-hostable	San Francisco, United States	$18.5M	53
Velum LabsFirewall that controls access to information across AI and humans	Machine Learning	Open source · Self-hostable	San Francisco, United States	$500K	49