# Jason Lopatecki

> Jason Lopatecki is the co-founder and CEO of Arize AI, a leading AI observability and evaluation platform that has raised $131M including a $70M Series C in 2025. A serial entrepreneur and UC Berkeley EECS graduate, he previously co-founded TubeMogul and scaled it from a garage startup to a NASDAQ-listed public company before Adobe acquired it in 2016. At Arize, he is building the infrastructure layer that helps engineering teams test, evaluate, and troubleshoot AI models and LLM-powered agents in production - a market that has exploded with the rise of generative AI.

- **Role:** Co-Founder & CEO at Arize AI
- **Organizations:** Arize AI, TubeMogul, Illumenix, Adobe Advertising, Calix, Nokia, The House Fund
- **Nationality:** American
- **Education:** Bachelor of Science in Electrical Engineering and Computer Science, University of California, Berkeley
- **Known for:** Co-founded and scaled TubeMogul from garage startup to NASDAQ IPO and Adobe acquisition ($500M+), Co-founded Arize AI, raising $131M total including a landmark $70M Series C in 2025, Built Arize Phoenix open-source tool to 2M+ monthly downloads

## Career timeline

- **Early career** — Engineering positions at Alcatel and Calix specializing in chip design and systems architecture
- **2008** — Founded Illumenix, a video analytics company; TubeMogul acquired Illumenix in October 2008
- **2008-2016** — Co-founder and Chief Strategy and Innovation Officer at TubeMogul; introduced programmatic advertising; led company through IPO on NASDAQ
- **2016** — Adobe acquired TubeMogul for over $500 million
- **2016-2020** — Senior Director of Innovation and PTV at Adobe Advertising following the acquisition
- **2020** — Co-founded Arize AI alongside Aparna Dhinakaran to solve AI observability and monitoring challenges
- **2023** — Arize AI launched open-source Phoenix observability tool; grew to major enterprise adoption
- **2024** — Launched Arize AI Copilot with 50+ built-in skills; Phoenix reached 2M+ monthly downloads
- **2025-02** — Arize AI raised $70M Series C led by Adams Street Partners, bringing total funding to $131M

## Achievements

- Co-founded and scaled TubeMogul from garage startup to NASDAQ IPO and Adobe acquisition ($500M+)
- Co-founded Arize AI, raising $131M total including a landmark $70M Series C in 2025
- Built Arize Phoenix open-source tool to 2M+ monthly downloads
- Secured strategic investment from Microsoft (M12), Datadog, and PagerDuty for Arize AI
- Arize AI's Series C described as 'largest-ever investment in AI observability'
- Arize AI named to Forbes AI 50 list
- Built enterprise customer base including Uber, Klaviyo, and Tripadvisor
- Admitted to UC Berkeley while still in high school
- Led TubeMogul through full startup lifecycle: founding, scaling, IPO, and successful acquisition

## Latest updates

- **2025-07** — Arize:Observe 2025 Keynote: Introduced Alyx and ADB, Arize's proprietary OLAP database for AI traces
- **2025-02** — Arize AI raised $70M Series C - described as largest-ever investment in AI observability - led by Adams Street Partners with participation from M12 (Microsoft), Datadog, PagerDuty
- **2024-10** — Spoke at ODSC 2024 on 'Demystifying LLM Evaluation' and at The AI Conference on 'Evaluating Agents and Assistants'
- **2024-07** — Launched Arize Copilot with 50+ built-in skills at Arize:Observe 2024 conference
- **2024-05** — Arize Phoenix crossed 2M+ monthly downloads milestone

## Links

- Website: https://arize.com
- LinkedIn: https://www.linkedin.com/in/jason-lopatecki-9509941
- Twitter/X: https://twitter.com/jason_lopatecki
- YouTube: https://www.youtube.com/@ArizeAI
- Facebook: https://facebook.com/arizeai/

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Profile page: https://yespress.io/jason-lopatecki
Published by YesPress — https://yespress.io
Last updated: 2026-05-26