Spherical Defense
Track on RadarAPI security platform using unsupervised deep learning for threat detection
- Total raised
- $2.02M
- Employees
- —
- Founded
- 2017
- Momentum
- —
Data updated August 2026
About
About Spherical Defense
At a glance
Spherical Defense is a cybersecurity company specializing in Application Security, founded in 2017 and headquartered in San Francisco, United States. It has raised $2.02M in total funding and is privately held.
Spherical Defense provides API security protection using unsupervised deep learning technology. The company's platform develops positive security models of applications in real-time by analyzing API traffic patterns, eliminating the need for manual rule creation or signature definitions that traditional WAFs require. The platform operates by continuously learning from API requests, whether from historic data or real-time API calls, and automatically adapts as applications evolve and user behavior changes. The system analyzes structured machine-to-machine communications flows including external web logs, internal application logs, and system logs. It performs session-level analysis by monitoring entire sequences of interactions between external clients and APIs. Spherical Defense's technology is designed specifically for analyzing complex tree-based data structures and JSON objects. The platform operates autonomously without requiring intervention or historical attack data, treating zero-day attacks as deviations from normal behavior patterns. All data processing occurs within the customer's network, ensuring no data leakage off-premises. The company offers deployment options including a one-click AWS marketplace solution called Spherical Defense Express. Use cases include protecting internal application-level traffic, API security, monitoring kernel system calls and OS queries, and securing internal communications through service meshes or Kubernetes environments. The platform integrates with existing infrastructure whether on-premises or in private cloud environments.
Momentum
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Valuation
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Products
Spherical Defense's products
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FAQ
Frequently asked questions about Spherical Defense
When was Spherical Defense founded?▾
Spherical Defense was founded in 2017.
Where is Spherical Defense headquartered?▾
Spherical Defense is headquartered in San Francisco, United States.
How much funding has Spherical Defense raised?▾
Spherical Defense has raised a total of $2.02M in total funding.
Is Spherical Defense public or private?▾
Spherical Defense is a privately-held company.
What does Spherical Defense do?▾
Spherical Defense provides API security protection using unsupervised deep learning technology. The company's platform develops positive security models of applications in real-time by analyzing API traffic patterns, eliminating the need for manual rule creation or signature definitions that traditi…