Sentry

Sentry is a developer-focused application monitoring and observability company. Its platform helps software teams identify, diagnose, and resolve errors and performance issues using capabilities such as error tracking, tracing, logs, session replay, profiling, and AI-assisted debugging.

Originally developed as an open-source project, Sentry is operated by Functional Software, Inc. and serves millions of developers across more than 200,000 organizations worldwide. The company is headquartered in San Francisco and maintains an international presence, including teams in Toronto and Vienna.