Dragos Platform Asset Visibility vs GRASSMARLIN: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Dragos Platform Asset Visibility is a commercial operational technology asset discovery tool by Dragos. GRASSMARLIN is a free operational technology asset discovery tool. Compare features, ratings, integrations, and community reviews side by side to find the best operational technology asset discovery fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Dragos Platform Asset Visibility
Mid-market and enterprise industrial operations teams need asset discovery that actually handles legacy protocols and modern IIoT devices in the same scan, which Dragos Platform Asset Visibility does through passive-first collection and deep packet inspection across 600+ OT protocols. The weekly Knowledge Packs ensure your vulnerability priorities don't drift as new CVEs hit industrial stacks, and the Now/Next/Never framework beats generic CVSS scoring for ops that can't patch a PLC on Tuesday. Skip this if you're running mostly IT infrastructure or need point-in-time compliance reporting; Dragos is built for continuous OT monitoring and assumes you'll actually act on what it finds.
Operations teams defending critical infrastructure without dedicated ICS/SCADA visibility should start with GRASSMARLIN; its passive network mapping gives you topology sight-lines without touching production systems, which matters when downtime costs six figures per hour. The tool is free and runs on commodity hardware, so deployment friction is nearly zero for teams of any size. The tradeoff is real: GRASSMARLIN maps what exists but doesn't actively hunt for misconfigurations or lateral movement, so it's a foundation layer, not a standalone defense.
