Data Theorem

Data Theorem is an application security vendor whose Analyzer Engine suite secures APIs, cloud-native applications, mobile apps, and web applications through automated discovery, security testing, and runtime protection. Founded in 2013 and based in Palo Alto, California, it serves large enterprises and financial institutions, and its customers' applications collectively cover more than 2.8 billion users. Product lines include API Secure, Cloud Secure, Mobile Secure, and Code Secure, and Data Theorem earned the top score for the cloud-native applications use case in the 2025 Gartner Critical Capabilities for Application Security Testing.