Sentry

How Sentry Grew to $128M ARR with 50K Customers in 2023

March 14th, 2025

Founded By

David Cramer

Monthly Revenue

$10.6M

Founders

Monthly Traffic

2.32M

Profitable

Yes

Year Started

2012

Revenue Per Visitor

$4.57

Founded By
David Cramer: Monthly Revenue
$10.6M: Founders
2

Monthly Traffic
2.32M: Profitable
Yes: Year Started
2012

Revenue Per Visitor
$4.57

Who is David Cramer?

David Cramer, a self-taught programmer from the Midwest, co-founded Sentry after initially creating it as an open-source project in 2008 to address his own error-tracking needs while working with Python and Django. Before founding Sentry, Cramer worked at Disqus and Dropbox, which helped him refine and commercialize his project into a successful business.

What problem does Sentry solve?

Sentry simplifies identifying and fixing software errors for developers, offering instant insights that save time and reduce the frustration of manually digging through logs.

How did David come up with the idea for Sentry?

David Cramer started Sentry because he was frustrated with the existing solutions for tracking software errors. While working as a developer, he found it cumbersome to access logs through systems administrators whenever he encountered an error. Realizing that there was no straightforward tool for this, he created an open-source project to log and alert on errors directly from the application, making error monitoring more developer-friendly.

Initially, Sentry was just a side project, but interest from the Python and Django communities validated its utility. As feedback...

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