Founded in the United States, GreyNoise Intelligence is a cybersecurity firm dedicated to transforming internet noise into actionable intelligence. Their core mission is to help security analysts focus on significant threats by filtering out irrelevant or benign internet scan and attack activities. GreyNoise offers a security platform that collects, analyzes, and labels data on IP addresses that conduct widespread, untargeted scans, thereby reducing false positives and optimizing security operations for their clients.

Notable figures affiliated with GreyNoise include its founder Andrew Morris. The company has garnered attention from prominent investors in the cybersecurity space. Key achievements include the development of a robust platform that significantly enhances the efficiency of Security Operations Centers (SOCs) by accelerating alert triage and threat hunting. GreyNoise's impact is evident in its ability to help organizations defend against mass exploitation and optimize their patching processes during critical exposure windows.