GreyNoise Block vs Opsis OSINT: side-by-side comparison (2026)

GreyNoise Block: Real-time threat intel platform detecting malicious scanning & exploitation. Built by GreyNoise, Inc.

Opsis OSINT: OSINT search: find the accounts behind an email, username or domain across 1,000+ sites. Built by Opsis.

The table above shows where their features, integrations, deployment and company size fit differ.

GreyNoise Block is made by GreyNoise, Inc. Opsis OSINT is made by Opsis. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. GreyNoise Block and Opsis OSINT are both Threat Intel Platforms products, and both cover Cyber Threat Intelligence. Use the table above to see where features, deployment and company size fit differ.