# Mainak Mazumdar

> Mainak Mazumdar is Chief Business Officer at Fiddler AI, the AI observability and trust company, where he leads sales, customer success and partnerships. A data scientist by training with a Ph.D. from Brown, he spent two decades remaking how the media and advertising industries measure audiences - as Chief Data Officer at Nielsen (where he launched NielsenOne), Chief Research and Analytics Officer at Fox, and a leader at DoubleClick/Google, GfK and Simulmedia. His 2020 TED Talk, 'How bad data keeps us from good AI,' argued that biased data, not algorithms, is the root of unfair AI. He holds more than 15 U.S. patents and has served on the U.S. Census Scientific Advisory Committee.

- **Role:** Chief Business Officer at Fiddler AI
- **Organizations:** Fiddler AI, Fox Corporation, Nielsen, Simulmedia, GfK, Comscore, DoubleClick (Google), U.S. Census Scientific Advisory Committee, Satori (Board of Advisors)
- **Nationality:** American
- **Education:** Ph.D., Brown University, M.A., Brown University
- **Known for:** Launched NielsenOne, Nielsen's cross-platform measurement standard for streaming and linear TV, Named Fox Corporation's first Chief Advertising Research and Analytics Officer, Holds more than 15 U.S. patents

## Career timeline

- **Early career** — Data scientist at advertising technology start-ups
- **Earlier** — Director of Research at DoubleClick (Google)
- **Earlier** — VP of Research & Products at Comscore
- **Earlier** — Chief Science Officer at Simulmedia and Chief Strategy Officer at GfK
- **Through 2021** — Chief Data and Research Officer at Nielsen; led data science, identity solutions and AI; launched NielsenOne
- **2021** — Joins Fox Corporation as its first Chief Advertising Research and Analytics Officer
- **2025-01** — Joins Fiddler AI as Chief Business Officer

## Achievements

- Launched NielsenOne, Nielsen's cross-platform measurement standard for streaming and linear TV
- Named Fox Corporation's first Chief Advertising Research and Analytics Officer
- Holds more than 15 U.S. patents
- Served on the U.S. Census Scientific Advisory Committee
- Member of the University of Chicago Booth Kilts Center for Marketing steering committee
- Delivered the TED Talk 'How bad data keeps us from good AI' (2020/2021)
- Joined Satori's Board of Advisors as Nielsen's Chief Data Officer

## Latest updates

- **2025-01** — Joined Fiddler AI as Chief Business Officer, leading sales, customer success and partnerships.

## Links

- Website: https://fiddler.ai
- LinkedIn: https://www.linkedin.com/in/mainakmazumdar/
- YouTube: https://www.youtube.com/watch?v=WSteyxgQqRc

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Profile page: https://yespress.io/mainak-mazumdar
Published by YesPress — https://yespress.io
Last updated: 2026-06-11