GreyNoise Intelligence

GreyNoise Intelligence provides real-time, verifiable threat intelligence using a global network of internet sensors. Our intelligence helps security teams detect attacks on their network edge by identifying malicious scanning and exploitation. This allows defenders to distinguish between benign and malicious traffic, focusing on urgent threats and automating defenses. We also assist with vulnerability management by monitoring internet scan activity for the likelihood of exploitation. We accelerate threat hunting by tagging activity for anomaly detection and correlation.

Our products include GreyNoise Block, which offers configurable, real-time blocklists; GreyNoise Feeds, designed for real-time, event-driven threat intelligence; and a Model Context Protocol (MCP) server, which observes how attackers interact with AI middleware.

Founded in 2017, GreyNoise Intelligence operates in computer and network security. We serve over 80,000 users, including more than 400 global government agencies and 60% of the Fortune 1000.

Our mission is to collect diverse primary scanning and exploitation data and transform it into actionable intelligence for defenders, so no attack works twice.

Our vision is simple: No attack works twice.

Our culture is rooted in transparency, communication, and community. We believe these are essential for fostering diversity, equity, and inclusion. We focus on creating and maintaining an inclusive environment through our hiring, retention, and recognition processes.

We are a company with 11-50 employees. We operate with a remote-first culture and a distributed workforce across the country. While our headquarters are in the Washington D.C. area, office attendance is optional.

Our culture emphasizes transparency, communication, and community, which are foundational to our approach to diversity, equity, and inclusion. We foster an inclusive environment through our hiring, retention, and recognition processes. We encourage team bonding through company offsites and monthly local hangouts.

We offer equity in a high-growth, Series A startup. We cover 100% of health, dental, vision, and life plans. We offer a competitive 6% 401k employer match, 100% matched and vested from day one. We offer flexible paid time off, recommending at least 120 hours (3 weeks) annually, including at least five consecutive business days.

As a remote-first company with a distributed workforce, we provide an equipment budget, including an Apple Mac laptop and a $500 stipend for accessories. We offer paid family leave: 4 months paid for birth or adoption, plus 2 months optional unpaid leave. An annual $1,500 learning & development budget is available for professional development, covering tuition, books, and conferences. We host company offsites and monthly local hangouts to encourage team bonding.