ReliaQuest GreyMatter Transit is a commercial security data pipelines solution by ReliaQuest. VirtualMetric DataStream is a commercial security data pipelines solution by VirtualMetric. Features, integrations, deployment and the company behind each one, side by side.
Real-time threat detection and telemetry routing platform for security data
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Based on what each listing shows: deployment, company size, price and open source.
ReliaQuest GreyMatter Transit fits if you want a cloud product.
VirtualMetric DataStream fits if you need both cloud and on-premises options and you are a small business.
Common questions when comparing ReliaQuest GreyMatter Transit vs VirtualMetric DataStream for security data pipelines.
ReliaQuest GreyMatter Transit: Real-time threat detection and telemetry routing platform for security data. Built by ReliaQuest.
VirtualMetric DataStream: Built by VirtualMetric.
The table above shows where their features, integrations, deployment and company size fit differ.
ReliaQuest GreyMatter Transit is made by ReliaQuest. VirtualMetric DataStream is made by VirtualMetric. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. ReliaQuest GreyMatter Transit and VirtualMetric DataStream are both Security Data Pipelines products, and both cover Log Management. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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