# Kazuki Ohta

> Kazuki “Kaz” Ohta is the Japanese co-founder and CEO of Treasure AI, formerly Treasure Data. A University of Tokyo graduate and former high-performance computing researcher, he helped build the company’s data infrastructure, served as its founding CTO, joined Arm through its 2018 acquisition, and returned as CEO in 2021. His work spans open-source software, customer data platforms and AI-assisted marketing.

- **Role:** Co-founder and CEO at Treasure AI
- **Organizations:** Treasure AI (formerly Treasure Data), Arm (former employer), Preferred Infrastructure (former employer), Argonne National Laboratory (former visiting researcher), Japanese Hadoop User Group, Idein (external board listed on personal website)
- **Nationality:** Japanese
- **Education:** Bachelor in Computer Science, University of Tokyo, Master in Information Science, University of Tokyo
- **Known for:** Co-founded a B2B SaaS business that reached more than $100 million in annual recurring revenue, reported by 2021–2022., Co-developer of Fluentd, an open-source data collector., Co-founded the Japanese Hadoop User Group in 2009.

## Career timeline

- **2006–2011** — Worked at Preferred Infrastructure, joining as its sixth member and later becoming CTO; built the Sedue distributed search engine.
- **2008** — Completed bachelor’s degree at the University of Tokyo.
- **2009** — Co-founded the Japanese Hadoop User Group.
- **2010** — Completed master’s degree at the University of Tokyo; research included parallel I/O and high-performance computing, with visiting research at Argonne National Laboratory.
- **2011** — Co-founded Treasure Data with Hironobu Yoshikawa and Sadayuki Furuhashi; became its founding CTO.
- **2018** — Joined Arm through its acquisition of Treasure Data; served as VP of Technology in its Data Services Business Unit until October 2020.
- **2021** — Returned as Treasure Data CEO in June; the company announced $234 million in funding led by SoftBank Corp. in November.
- **2026** — Continues as CEO as Treasure Data becomes Treasure AI on April 20.

## Achievements

- Co-founded a B2B SaaS business that reached more than $100 million in annual recurring revenue, reported by 2021–2022.
- Co-developer of Fluentd, an open-source data collector.
- Co-founded the Japanese Hadoop User Group in 2009.
- Co-authored Japanese Hadoop guides published in 2011 and 2013.
- Listed as a University of Tokyo School of Science distinguished alumnus in 2020.

## Latest updates

- **2026-04** — Treasure Data became Treasure AI on April 20, launching Treasure AI Studio and an agentic experience platform; Ohta remains co-founder and CEO.

## Links

- Website: https://www.kzk9.net/
- LinkedIn: https://www.linkedin.com/in/kazukiohta/
- Twitter/X: https://twitter.com/kzk_mover
- GitHub: https://github.com/kzk

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Profile page: https://yespress.io/kazuki-ohta
Published by YesPress — https://yespress.io
Last updated: 2026-10-16