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

March 14th, 2025

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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Sources (6)

sacra.com cio.com youtu.be youtu.be youtu.be youtu.be
4 youtube videos · 2 articles
sacra.com
sacra.com Article · 2023
Sentry
Sentry is an error tracking and performance monitoring SaaS. Sacra estimates that Sentry hit $128M annual recurring revenue (ARR) on 50,...
cio.com
cio.com Article · 2022
Sentry’s David Cramer on bootstrapping a unicorn
The CTO and co-founder discusses building a startup, focusing on developer experience, automating QA, and optimizing for shipping new fea...
youtu.be
youtu.be YouTube · 2024
Most Founders Make the Same Mistakes: Brutally Honest Truths from Sentry’s David Cramer
In this episode of Breaking Changes, Postman Head of Product-Observability Jean Yang sits down with David Cramer, co-founder and CTO of S...
youtu.be
youtu.be YouTube · 2024
Lessons from Sentry on scaling DevTools and finding product market fit (again) | Milin Desai (CEO)
Milin Desai is the CEO at Sentry, an application monitoring tool for developers. Sentry has recently passed two key milestones: 100K cust...
youtu.be
youtu.be YouTube · 2024
How Sentry's David Cramer Turned an Open Source Side Project into a $3B Business
David Cramer, co-founder and CPO of Sentry, joins host Dan Levine to share the unconventional journey of turning an Open Source side proj...
youtu.be
youtu.be YouTube · 2024
David Cramer, Founder Sentry: How my Open Source Side Project became a Successful Business
David Cramer, the founder of Sentry, discusses the origins and growth of the company. Sentry started as an open-source project that Crame...

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