What is the difference between GRASSMARLIN vs Athena Dynamics RAD?

**GRASSMARLIN**: Passively maps and visually displays ICS/SCADA network topology for network security.. **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.. Both serve the Operational Technology Asset Discovery market but differ in approach, feature depth, and target audience.

Who makes GRASSMARLIN vs Athena Dynamics RAD?

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

Is GRASSMARLIN a good alternative to Athena Dynamics RAD?

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

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

GRASSMARLIN

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

Operational Technology Asset Discovery

Free

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Athena Dynamics RAD

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

Operational Technology Asset Discovery

Commercial

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Side-by-Side Comparison

Feature

GRASSMARLIN

Athena Dynamics RAD

Pricing Model

Free

Commercial

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Core Features

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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

Integrations

No integrations listed

Microsoft Teams

TeamViewer

Community

Community Votes

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GRASSMARLIN vs Athena Dynamics RAD: 2026 Comparison

GRASSMARLIN

Athena Dynamics RAD

Side-by-Side Comparison

NIST CSF 2.0 Mapping

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