# You Mon Tsang

> You Mon Tsang is the founder and CEO of ChurnZero, the Washington, DC customer success platform he started in 2015 to fix a blind spot he hit as a software CMO: companies knew everything about prospects and almost nothing about the customers they already had. A four-time software founder with prior exits at Biz360, Engine140, and Milktruck, Tsang has turned a single metric - net revenue retention - into a rallying cry for subscription businesses, arguing that product-market fit is not the ability to sell customers but the ability to keep them.

- **Role:** Founder and CEO at ChurnZero
- **Organizations:** ChurnZero, Vocus / OutMarket, Biz360, Engine140, Milktruck, Xerox, Brio Technology, Traveling Software
- **Nationality:** American
- **Education:** BA, Urban Studies, Yale University, MBA, University of California, Berkeley, Haas School of Business
- **Known for:** Founded four software companies, with successful exits at Biz360, Engine140, and Milktruck, Built ChurnZero into a leading real-time customer success platform headquartered in Washington, DC, Named EY Entrepreneur Of The Year 2021 Mid-Atlantic Award finalist

## Career timeline

- **Early career** — Director of the web tools group at Traveling Software
- **Early career** — Director of product management at Xerox and Brio Technology
- **Founder era** — Founded Biz360, Engine140, and Milktruck - all software companies with successful exits
- **Pre-ChurnZero** — CMO of Vocus (now Cision) and CEO of its marketing automation business unit, OutMarket
- **2015** — Co-founded ChurnZero with Mark Heys to serve the underserved customer success segment
- **2021-03** — ChurnZero raised a $25M Series B
- **2021** — Named an EY Entrepreneur Of The Year Mid-Atlantic Award finalist

## Achievements

- Founded four software companies, with successful exits at Biz360, Engine140, and Milktruck
- Built ChurnZero into a leading real-time customer success platform headquartered in Washington, DC
- Named EY Entrepreneur Of The Year 2021 Mid-Atlantic Award finalist
- Helped popularize net revenue retention (NRR) as the defining metric for subscription businesses
- Backed by JMI Equity, Baird Capital, Grotech Ventures, and Middleland Capital

## Latest updates

- **2021-03** — ChurnZero closed a $25M Series B led by its investors to scale its customer success platform.
- **2021-09** — Recognized as an EY Entrepreneur Of The Year Mid-Atlantic finalist.

## Links

- Website: https://churnzero.com
- LinkedIn: https://www.linkedin.com/in/youmon
- Twitter/X: https://twitter.com/churnzero
- Facebook: https://www.facebook.com/churnzero/

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Profile page: https://yespress.io/you-tsang
Published by YesPress — https://yespress.io
Last updated: 2026-06-04