Open source focus

Open Source Alternatives to eSEOspace

18 open source Cybersecurity options similar to eSEOspace, 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.

View all alternatives to eSEOspace →

0sec11
Cybersecurity
An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
Slauth.io43
EnterpriseAshburn, United States$1.5M
Ark Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.
Open source · Self-hostable
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
ORY47
Identity & Access ManagementBerlin, Germany$17.0M
Open-source identity and authorization services for applications, offering composable and scalable IAM solutions.
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
Idoris8
Agentic AI
An open-source, AI-powered brain for organizations, offering a workbench for builders, tailored solutions, and an agent legion.
Open source
Nomic AI59
AI Infrastructure StackNew York City, United States$19.0M
Nomic AI builds tools to make AI explainable and accessible, focusing on data curation and visualization.
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
Outshift19
Agentic AI
Cisco's internal incubation engine for emerging technologies like agentic AI and quantum networking.
Open source · Self-hostable
MCP.so10
Developer Tools
A community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.
Open source · Self-hostable
Umbrasec9
Cybersecurity
Independent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
Snyk76
AI Coding AssistantBoston, United States$488.5M
Snyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.
Open source · Self-hostable
Chainguard62
CybersecuritySeattle, United States$385.0M
Secures the software supply chain with verifiable builds and open-source security tooling.
Open source · Self-hostable
Bitwarden57
CybersecuritySanta Barbara, United States$100.0M
Open-source password manager for individuals, teams, and businesses.
Open source · Self-hostable
ARMO56
EnterpriseTel Aviv, Israel$34.5M
ARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.
Open source · Self-hostable
Puck52
Endpoint SecurityUnited States
Open-source, AI-driven endpoint investigation tool for security teams.
Open source · Self-hostable
GitHits45
Developer ToolsHelsinki, Finland$1.5M
The Google of code search for open-source.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
0secAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.	Cybersecurity	Open source · Self-hostable	—	—	11
Slauth.ioArk Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.	Enterprise	Open source · Self-hostable	Ashburn, United States	$1.5M	43
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
ORYOpen-source identity and authorization services for applications, offering composable and scalable IAM solutions.	Identity & Access Management	Open source · Self-hostable	Berlin, Germany	$17.0M	47
FalcoOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.	Cybersecurity	Open source · Self-hostable	—	—	10
IdorisAn open-source, AI-powered brain for organizations, offering a workbench for builders, tailored solutions, and an agent legion.	Agentic AI	Open source	—	—	8
Nomic AINomic AI builds tools to make AI explainable and accessible, focusing on data curation and visualization.	AI Infrastructure Stack	Open source · Self-hostable	New York City, United States	$19.0M	59
OWASPA global non-profit foundation dedicated to improving software security through open community collaboration.	Cybersecurity	Open source · Self-hostable	Raleigh, USA	—	38
OutshiftCisco's internal incubation engine for emerging technologies like agentic AI and quantum networking.	Agentic AI	Open source · Self-hostable	—	—	19
MCP.soA community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.	Developer Tools	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
SnykSnyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.	AI Coding Assistant	Open source · Self-hostable	Boston, United States	$488.5M	76
ChainguardSecures the software supply chain with verifiable builds and open-source security tooling.	Cybersecurity	Open source · Self-hostable	Seattle, United States	$385.0M	62
BitwardenOpen-source password manager for individuals, teams, and businesses.	Cybersecurity	Open source · Self-hostable	Santa Barbara, United States	$100.0M	57
ARMOARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	$34.5M	56
PuckOpen-source, AI-driven endpoint investigation tool for security teams.	Endpoint Security	Open source · Self-hostable	United States	—	52
GitHitsThe Google of code search for open-source.	Developer Tools	Open source · Self-hostable	Helsinki, Finland	$1.5M	45