Sentry is a provider of open-source and hosted error monitoring software that helps all software teams discover, triage, and prioritize errors in real-time.

Sentry empowers developers to quickly triage and resolve issues while reducing everything-is-on-fire stress, chaos, and potential financial loss, by providing cross-stack visibility and deep context about errors.

Sentry was founded in 2011 by David Cramer & Chris Jennings and is based in San Francisco, California, with an additional office in Vienna, Austria.

Sentry’s software is used to monitor performance and identify issues before they result in costly outages. It is also extending support for native applications with Sentry for Native, targeted to mobile, gaming and IoT developers. 

Sentry differentiates from legacy application performance monitoring solutions by focusing on software that run on devices its developers have no control over, including mobile and IoT devices and smart sensor networks.


Sentry has launched a new product called Performance Monitoring, a frontend performance monitoring software for Python and Javascript. Sentry is used by over 60,000 organizations including Airbnb, Dropbox, Microsoft, PayPal, Peloton, Pinterest, Square, Symantec and Uber.


Sentry is backed by two prominent venture firms Accel & New Enterprise Associates, along with angels including Nat Friedman, Ilya Sukhar & Greg Brockman. The company raised $40M from its latest "Series C" financing on Sep 24, 2019. This brings Sentry's total funding to $66.5M to date.



  • Year founded: 2011
  • Funding Info: $66.5M over 3 Rounds of Funding (Last Funding Type: Series C)
  • Yearly Revenue: $10M-$20M (2019)
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: San Francisco
  • State: California
  • Country: United States
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