# Varun Mathur

> Varun Mathur is the co-founder and CEO of Unisson, a Y Combinator Winter 2026 startup building AI agents that act as hands-on product experts for customer-facing B2B teams. Before Unisson he led product, engineering, growth and vision-language-model research for agent products at Ambient.ai (YC W17), where he built a video-understanding model that outperformed Gemini 2.5 Pro and sold AI to Fortune 5 companies. He studied computer science and statistics at the University of Illinois Urbana-Champaign and works out of San Francisco.

- **Role:** Co-Founder & CEO at Unisson
- **Organizations:** Unisson, Ambient.ai, University of Illinois Urbana-Champaign
- **Nationality:** American
- **Education:** B.S. in Computer Science and Statistics, University of Illinois Urbana-Champaign
- **Known for:** Co-founded Unisson and took it into Y Combinator's Winter 2026 batch., Led product, engineering, growth, and VLM research for agent products at Ambient.ai., Built a vision-language model for video understanding that outperformed Gemini 2.5 Pro.

## Career timeline

- **2015** — Began studying Computer Science and Statistics at the University of Illinois Urbana-Champaign.
- **2019** — Graduated from the University of Illinois Urbana-Champaign.
- **2019-2025** — Led product, engineering, growth, and vision-language-model research for agent products at Ambient.ai (YC W17); built a video-understanding VLM that outperformed Gemini 2.5 Pro and sold AI to Fortune 5 companies.
- **2026** — Co-founded Unisson with Tom Achache and became CEO; joined Y Combinator's Winter 2026 batch.

## Achievements

- Co-founded Unisson and took it into Y Combinator's Winter 2026 batch.
- Led product, engineering, growth, and VLM research for agent products at Ambient.ai.
- Built a vision-language model for video understanding that outperformed Gemini 2.5 Pro.
- Sold AI solutions to Fortune 5 companies.
- Built AI agents that learn to operate any product within roughly 15 minutes.

## Latest updates

- **2026-01** — Unisson raised a seed round and joined Y Combinator's Winter 2026 batch.
- **2026-01** — Unisson publicly launched its AI product-specialist agents for customer-facing teams via Launch YC.

## Links

- Website: https://unisson.ai
- LinkedIn: https://www.linkedin.com/in/varun-mathur-451410a2/

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Profile page: https://yespress.io/varun-mathur
Published by YesPress — https://yespress.io
Last updated: 2026-07-31