Company Overview

Sentry is the leading open-source error tracking and application performance monitoring (APM) platform, created by David Cramer (former Disney engineer). The project began in 2008 with its first commit while Cramer was at Disney, was open-sourced in 2010, and the company was officially founded in 2016 with the launch of Sentry 8.0 SaaS. Headquartered in San Francisco, Sentry reached a $3 billion valuation in its 2022 Series E round.

Sentry helps development teams capture, aggregate, and diagnose application errors and performance issues in real-time. It supports 40+ programming languages and frameworks across web frontend, backend, mobile, and desktop platforms. Trusted by over 4 million developers and 100,000+ teams worldwide.

Related providers: Sentry Monitoring Services

Core Products

  • Error Tracking: Real-time error capture and intelligent deduplication to reduce alert noise
  • Performance Monitoring (APM): Distributed tracing and transaction analysis to pinpoint performance bottlenecks
  • Session Replay: Record user interactions alongside error stack traces for complete reproduction
  • Crash Reporting: Native and mobile crash analysis with symbolication
  • Profiling: Code-level CPU profiling to identify hot functions
  • Feedback: In-app user feedback collection linked to error events
  • Releases: Deployment tracking to correlate new errors with specific releases
  • Alerts: Rule-based intelligent alerting with multi-channel notifications

Key Milestones

  • 2008: David Cramer made the first Sentry commit while at Disney (internal team error tracking)
  • 2010: Sentry open-sourced under BSD license
  • 2016: Sentry company founded; Sentry 8.0 and SaaS service launched
  • 2019: Series A and Series B funding rounds completed
  • 2020: Performance (APM) module launched, expanding beyond error tracking
  • 2022: Session Replay launched; Series E funding at $3B valuation
  • 2024: Sentry AI and deep Slack integration introduced
  • 2025+: Continued expansion of observability capabilities and AI-assisted debugging

Market Position

Sentry competes with the following providers in the error tracking and APM space:

  • Datadog: Comprehensive cloud monitoring platform covering APM and error tracking
  • New Relic: Traditional APM vendor with full observability solutions
  • Rollbar: Lightweight error tracking specialist
  • Bugsnag: Crash reporting platform focused on mobile and web
  • TrackJS: Frontend-focused JavaScript error monitoring