NSO Group vs Seatbelt: side-by-side comparison (2026)

NSO Group: Govt-focused cyber intelligence & surveillance software provider. Built by NSO Group.

Seatbelt: Comprehensive host-survey tool for security checks in C#.

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

NSO Group is made by NSO Group. Seatbelt is open-source with 4,503 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. NSO Group and Seatbelt are both Red-Team & Adversary Emulation products. Key differences: NSO Group is Commercial while Seatbelt is Free, Seatbelt is open-source. Use the table above to see where features, deployment and company size fit differ.