# Zach Rosen

> Zach Rosen is the co-founder and CEO of Brellium, a New York healthcare startup whose AI reads every patient chart a provider group produces, checking it against more than a thousand clinical and payor standards before a claim ever goes out. He started the company after a personal misdiagnosis cost him two years that, he learned, a few unchecked boxes in a chart could have prevented. A Berkeley Haas grad who passed through Paycom engineering, Moelis investment banking, and a first healthcare venture called Sapien, Rosen raised a $16.7M Series A in April 2025 from First Round Capital and Left Lane Capital and counts Grow Therapy, Talkiatry, Headspace, and Rula among Brellium's customers.

- **Role:** Co-Founder & CEO at Brellium
- **Organizations:** Brellium, Sapien, Moelis & Company, Paycom
- **Nationality:** American
- **Education:** B.S., Business, University of California, Berkeley (Haas School of Business)
- **Known for:** Co-founded and leads Brellium, an AI platform that audits 100% of a provider group's patient charts against 1,000+ clinical and payor standards., Raised a $16.7M Series A in April 2025 led by First Round Capital and Left Lane Capital, with Menlo Ventures, Digital Health Venture Partners, Kearny Jackson, and Necessary Ventures participating., Signed customers including Grow Therapy, Rula, Headspace, Hopebridge, Talkiatry, Lightfully Behavioral Health, and DoubleCare ABA.

## Career timeline

- **2016** — Software Engineer at Paycom, working on payroll and tax software.
- **2018** — Investment Banker at Moelis & Company, focused on mergers and acquisitions.
- **2019** — Co-founded Sapien, a healthcare procurement firm serving clients including Henry Ford Health and USC's Keck School of Medicine.
- **2021** — Co-founded Brellium, the AI-powered clinical compliance platform, and became CEO.
- **2025** — Raised a $16.7M Series A led by First Round Capital and Left Lane Capital.

## Achievements

- Co-founded and leads Brellium, an AI platform that audits 100% of a provider group's patient charts against 1,000+ clinical and payor standards.
- Raised a $16.7M Series A in April 2025 led by First Round Capital and Left Lane Capital, with Menlo Ventures, Digital Health Venture Partners, Kearny Jackson, and Necessary Ventures participating.
- Signed customers including Grow Therapy, Rula, Headspace, Hopebridge, Talkiatry, Lightfully Behavioral Health, and DoubleCare ABA.
- Previously co-founded Sapien, a healthcare procurement firm with major health-system clients.

## Latest updates

- **2025-04** — Announced a $16.7M Series A led by First Round Capital and Left Lane Capital to scale Brellium's AI chart-review platform.

## Links

- Website: https://brellium.com
- LinkedIn: https://www.linkedin.com/in/zach-rosen/

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Profile page: https://yespress.io/zach-rosen
Published by YesPress — https://yespress.io
Last updated: 2026-06-04