Sentry is a software company that specializes in error tracking and application monitoring solutions. Founded in 2012 by Chris Jennings and David Cramer, Sentry started as an open-source project aimed at improving error visibility for developers. Today, it serves over 4 million developers and 130,000 organizations worldwide, providing tools that help identify, triage, and resolve software issues efficiently.

The core product offers cross-stack visibility and deep context about errors, enabling developers to address issues in real time. Sentry supports a variety of programming languages and frameworks through open-source SDKs, making it easy for developers to adopt the platform. The company operates a hybrid business model, combining free open-source software with a scalable cloud-hosted service. Sentry has also expanded its offerings by acquiring CodeCov, enhancing its capabilities in code coverage reporting. Headquartered in San Francisco, Sentry continues to grow rapidly, with significant annual recurring revenue and a strong presence in the software industry.