Ian Tien net worth
Quick answer
Ian Tien's estimated net worth is $13.44M (range $9.41M – $20.16M) as of 2026. Ian Tien is CEO at Mattermost. Mattermost valuation.
Ian Tien is CEO at Mattermost (YC S12). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Education: Bachelor's degree in Computer Science from the University of California, Berkeley
- Region: United States of America
- Industries: B2B, Productivity
- Team size: 120
- Website: http://mattermost.com
Who is Ian Tien?
Ian Tien is the co-founder of Mattermost, a company that provides open-source collaboration software. He was also a founder of the company that developed the popular messaging app, CtrlQ.
Highlights:
- University of California, Berkeley
- Palantir Technologies
- Y Combinator S12
About Mattermost
Mattermost provides secure collaboration for technical and operational teams that work in environments with complex nation-state level security and trust requirements. We serve technology, public sector, national defense and financial services industries with customers ranging from tech giants, to the world’s largest banks, to the U.S. Department of Defense and governmental agencies around the world.
Our...
FAQ: Ian Tien net worth and Mattermost valuation
What is Ian Tien's net worth?
Ian Tien's estimated net worth is $13.44M (range $9.41M – $20.16M) as of 2026. Ian Tien is CEO at Mattermost. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.
What is Mattermost valuation?
Mattermost's estimated valuation on Entrepreneurial Check is $80.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.
What is Ian Tien's role?
Ian Tien is CEO at Mattermost, a Y Combinator-backed startup (batch S12).