Nebula Security
Nebula Security is an AI-native cybersecurity company founded by world-class hackers. Nebula Security provides Mythos-level cybersecurity reviews and product security auditing, conducted by our state-of-the-art AI agent and world-class hackers themselves, covering everything from code-level vulnerabilities to architectural weak points. We were the first team to build an nginx RCE and the first to root Android 17. Our co-founders include members of the world’s No. 1 CTF team, DEF CON winners, Bla
Y Combinator
yc-company-directory #3157Nebula Security is an AI-native cybersecurity company founded by world-class hackers. Nebula Security provides Mythos-level cybersecurity reviews and product security auditing, conducted by our state-of-the-art AI agent and world-class hackers themselves, covering everything from code-level vulnerabilities to architectural weak points. We were the first team to build an nginx RCE and the first to root Android 17. Our co-founders include members of the world’s No. 1 CTF team, DEF CON winners, Bla
sourceNebula Security is classified as AI agents from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.
Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.
Companies similar to Nebula Security
A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.
Veria Labs
match 57Veria Labs is developing AI agents that hack better than the best human hackers. Founded by members of the #1 US competitive hacking team, we've already found critical bugs in AI tools, operating systems, fintech and billion dollar crypto exchanges. Now we're scaling that expertise through AI-native security tooling that operates faster than human researchers while finding deeper, more complex vulnerabilities that traditional tools miss.
shared product terms: security, native, found, hacker; shared product theme: security and compliance; same category: AI agents; shared affiliation: Y Combinator
Fabraix
match 57Fabraix builds state-of-the-art AI red-teaming agents that continuously detect security vulnerabilities in customer-facing AI. Our product, Nyx, has already found vulnerabilities in agents at dozens of Fortune 500 companies. On AgentHarm, the leading benchmark for offensive AI security, Nyx achieved a 78% attack success rate, compared with 67% for GPT-5.6 Sol. Companies usually pay for penetration tests one project at a time. They select which systems to include, give a team a few weeks to find
shared product terms: state, art, security, vulnerabilitie; shared product theme: security and compliance; same category: AI agents; shared affiliation: Y Combinator
VotingWorks
match 51VotingWorks is a non-partisan non-profit founded on the powerful idea that the operating system of our democracy should be publicly owned. Every citizen’s vote is sacred, and every citizen deserves evidence that our elections are free and fair. Forty states use voting machines that are over ten years old. Their technology is outdated, their source code proprietary and their security vulnerabilities – described in detail by the security community over many years – are left unpatched. It’s not sur
shared product terms: security, found, state, code; shared product theme: developer infrastructure, security and compliance; shared affiliation: Y Combinator
ZeroPath
match 35ZeroPath is a developer tool that autonomously detects, verifies, and submits fixes for vulnerabilities in your code. Engineers can use ZeroPath to find security problems that they might only otherwise catch in pentests or from bug bounty researchers.
shared product terms: vulnerabilitie, code, security; shared product theme: developer infrastructure, security and compliance; shared affiliation: Y Combinator
Nixtla
match 16State of the Art Forecasting Software.
shared product terms: state, art