Stellar Cyber
Track on RadarOpen XDR platform correlating security data with AI-driven threat detection
- Total raised
- $139.04M
- Employees
- 147
- Founded
- 2015
- Momentum
- 58
Steady
Data updated July 2026
About
About Stellar Cyber
At a glance
Stellar Cyber is a cybersecurity company specializing in Security Operations, founded in 2015 and headquartered in San Jose, United States. It has raised $139.04M in total funding, employs about 147 people, and is privately held.
Stellar Cyber develops an Open XDR (Extended Detection and Response) platform that consolidates security data from multiple sources to provide comprehensive threat detection and response capabilities. The platform ingests data from network security tools, endpoint security solutions, firewalls, identity tools, cloud security products, and other security infrastructure to create unified visibility across an organization's entire attack surface. The platform emphasizes data normalization and correlation across disparate security tools, using machine learning to baseline normal behavior and identify anomalies. Rather than relying solely on rule-based detection, the system applies artificial intelligence to reduce alert volumes from potentially millions of events down to actionable incidents. For example, the platform can analyze IDS alerts and use behavioral analytics to filter out false positives based on factors like normal login times, locations, and session durations. Stellar Cyber's architecture is API-driven and designed to integrate with existing security investments, avoiding vendor lock-in. The platform includes capabilities for threat hunting, network detection and response (NDR), and next-generation SIEM functionality. It serves both enterprise customers and managed security service providers (MSSPs), enabling security operations centers to correlate complex, multi-dimensional attacks across network traffic, endpoints, applications, and cloud environments. The system aims to help SOC teams scale their operations by automating pattern recognition and allowing analysts to focus on strategic security work.
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FAQ
Frequently asked questions about Stellar Cyber
When was Stellar Cyber founded?▾
Stellar Cyber was founded in 2015.
Where is Stellar Cyber headquartered?▾
Stellar Cyber is headquartered in San Jose, United States.
How much funding has Stellar Cyber raised?▾
Stellar Cyber has raised a total of $139.04M in total funding.
Is Stellar Cyber public or private?▾
Stellar Cyber is a privately-held company.
How many employees does Stellar Cyber have?▾
Stellar Cyber has approximately 147 employees.