What is the difference between Athena Dynamics RAD vs GRASSMARLIN?

**Athena Dynamics RAD**: Remote maritime IT/OT asset discovery & vuln assessment via software agent. built by Athena Dynamics. headquartered in Singapore. Core capabilities include Remote IT and OT asset discovery via lightweight software agent — no onboard hardware required, Passive network scanning with no observable impact on vessel OT systems (ClassNK certified), Vulnerability assessment and prioritisation for all discovered assets.. **GRASSMARLIN**: Passively maps and visually displays ICS/SCADA network topology for network security.. Both serve the Operational Technology Asset Discovery market but differ in approach, feature depth, and target audience.

Who makes Athena Dynamics RAD vs GRASSMARLIN?

**Athena Dynamics RAD** is developed by Athena Dynamics. **GRASSMARLIN** is open-source with 1,000 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Is Athena Dynamics RAD a good alternative to GRASSMARLIN?

Athena Dynamics RAD and GRASSMARLIN serve similar Operational Technology Asset Discovery use cases: both are Operational Technology Asset Discovery tools, both cover SCADA. Key differences: Athena Dynamics RAD is Commercial while GRASSMARLIN is Free, GRASSMARLIN is open-source. Review the feature comparison above to determine which fits your requirements.

Athena Dynamics RAD vs GRASSMARLIN (2026) | Compare Operational Technology Asset Discovery Tools

Athena Dynamics RAD

Remote maritime IT/OT asset discovery & vuln assessment via software agent.

Operational Technology Asset Discovery

Commercial

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GRASSMARLIN

Passively maps and visually displays ICS/SCADA network topology for network security

Operational Technology Asset Discovery

Free

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Side-by-Side Comparison

Feature

Athena Dynamics RAD

GRASSMARLIN

Pricing Model

Commercial

Free

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Core Features

Remote IT and OT asset discovery via lightweight software agent — no onboard hardware required
Passive network scanning with no observable impact on vessel OT systems (ClassNK certified)
Vulnerability assessment and prioritisation for all discovered assets
50-page detailed report with asset inventory and cybersecurity threat analysis
Transition to 24/7 Managed SOC continuous monitoring using the same agent
SOC alerts for unauthorised software installations and unusual system behaviour
Active scanning phase completed within approximately 60 minutes
E26 compliance readiness support

No features listed

Integrations

Microsoft Teams

TeamViewer

No integrations listed

Community

Community Votes

Bookmarks

User Reviews

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Athena Dynamics RAD vs GRASSMARLIN: 2026 Comparison

Athena Dynamics RAD

GRASSMARLIN

Side-by-Side Comparison

NIST CSF 2.0 Mapping

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