Sentry
Sentry sells application monitoring software used by millions of developers. The San Francisco-based company has raised $217M, most recently a Series E in May 2022, and employs 455 people. Sentry provides tools for developers to track and fix software errors in real time. Its customers are software teams needing to monitor application performance and reliability. The company has scaled rapidly since its 2011 founding, reaching a Series E round in 2022. Its engineering team makes up 17% of its workforce, reflecting its technical focus.
The growth story
Sentry grew from 182 to 455 employees between 2021 and 2026, raising $217M along the way, most recently a Series E in May 2022.
About
Application monitoring software considered "not bad" by millions of developers. Looking for support? ➡️ http://sentry.io/support.Check out our merch store @ https://sentry.shop
Founders and leadership
Engineering is Sentry's largest function, accounting for 77 of its 455 employees. The company has a median tenure of 2 years, suggesting moderate turnover.
The Sentry org chart
Milin Desai (Chief Executive Officer) leads 60 mapped leaders with 11 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 193 (-3% YoY), Sales 44 (+33% YoY), Information Technology 35 (+9% YoY), Operations 20 (+82% YoY), Marketing 19 (+19% YoY), Human Resources 19 (+27% YoY).
Talent flow
Sentry recruits heavily from tech companies like Emerge Tools, Oracle, and New Relic. Its alumni often move to prominent firms including Meta, Google, and OpenAI.
Most common previous employers of Sentry staff: Emerge Tools (9), Oracle (9), New Relic (8), Atlassian (8), LaunchDarkly (7), Facebook (7). Former Sentry employees most often moved to SpaceXAI (4), Meta (3), Google (3), Glean (3), Vanta (3), OpenAI (3).
Alumni worth knowing
The Sentry mafia
Sentry alumni have founded 13 companies, including NetBox Labs (147 employees) and Dispatcher (16 employees).
14Bill Lapcevic, was Chief Operating Officer until 2018Maxwell Wang, was Software Engineer until 2024Cris Dobbins, was Brand Consultant until 2016Ben Vinegar, was VP Engineering & Various Roles until 2024Stephen Cefali, was Engineering Manager until 2024Kyle Mann, was Product Design Manager until 2025
Katia A., was Engineering Manager until 2025
Mateusz Podbielski, was Software Engineering Manager until 2011
Filip Drabek, was Product Manager until 2020
Adam Toth-Fejel, was Senior Sales Engineer until 2025
Jordan S. Leopold, was Outbound Sales Development Representative until 2019
Jernej Strasner, was Director of Engineering until 2025
Rodolfo Henrique Carvalho, was Senior Software Engineer - Team Lead until 2022
Samantha Zeitlin, was Lead Data Scientist and Data Team Manager until 2020Hiring now
Web traffic
Traffic mix: 53% direct, 11% search, 7% social, 0% paid.
What this company is made of
Most common skills at Sentry: JavaScript (168), Python (Programming Language) (164), Leadership (123), Java (120), Git (114), SQL (108), Cascading Style Sheets (CSS) (105), Microsoft Office (104).
Where the team actually sits
Sentry people are concentrated in California, United States (100), San Francisco Bay Area (40), Ontario, Canada (16), Vienna, Austria (12).
Search footprint
Sentry attracts about 227,200 organic search visits a month, traffic worth roughly $325K a month if bought through ads. It gained 15,239 ranking keywords and lost 16,471 in the last period.
What employees say
- Compensation
- 4.10 / 5
- Career opportunities
- 4.10 / 5
- Senior management
- 3.80 / 5
- Work-life balance
- 4.30 / 5
Frequently asked
Sentry has 455 employees as of September 2026.
Sentry has raised $217M in total, most recently a Series E round in May 2022.
Sentry was founded in 2011 by David Cramer, Chris Jennings.
Milin Desai (Chief Executive Officer) sits at the top of Sentry's reporting structure, with 11 direct reports.
The most common previous employers of current Sentry staff are Emerge Tools (9 people), Oracle (9 people), New Relic (8 people).
Former Sentry employees most often move to SpaceXAI (4), Meta (3), Google (3).
At least 13 companies have a founder who previously worked at Sentry, including NetBox Labs, Dispatcher, Soffi.
Sentry attracts about 227,200 organic search visits a month, worth roughly $325K a month in equivalent ad spend.
The most common skills among Sentry staff are JavaScript, Python (Programming Language), Leadership, Java, Git.
Sentry staff are concentrated in California, United States (100), San Francisco Bay Area (40), Ontario, Canada (16).
Sentry has about 193 people in Engineering, down 3% over the past year, as of September 2026.
Sentry has about 44 people in Sales, up 33% over the past year, as of September 2026.
Computed from 244 current and 251 former Sentry profiles, as of September 2026. Source: Crustdata.
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