# Gabriel Levesque Tremblay

> Gabriel Levesque Tremblay is the New York-based CEO and co-founder of HexemBio. He previously co-founded Orbillion Bio and served as its CTO, worked at AIChE on technical entities and grants, and completed a synthetic biology postdoc at UC Berkeley. His academic background includes a 2014 doctorate in botany from the University of British Columbia.

- **Role:** CEO and Co-Founder at HexemBio
- **Organizations:** HexemBio, Orbillion Bio, American Institute of Chemical Engineers, University of California, Berkeley, University of British Columbia
- **Nationality:** American and Canadian (self-described)
- **Education:** BSc, Université du Québec à Montréal, MSc in Biology, Université du Québec à Montréal, PhD in Botany, University of British Columbia, Postdoctoral research in synthetic biology at the Energy Biosciences Institute, University of California, Berkeley
- **Known for:** First author of a 2015 Plant Physiology paper on a pectin methyl esterase involved in embryo development., Helped establish the Center for Hydrogen Safety in April 2019., Co-founded Orbillion Bio, a Y Combinator Winter 2021 company now listed by YC as acquired.

## Career timeline

- **2005** — Earned a BSc at Université du Québec à Montréal.
- **2009** — Earned an MSc at Université du Québec à Montréal.
- **2014** — Completed a botany doctorate at UBC on seed development and germination.
- **—** — Conducted postdoctoral synthetic biology research at UC Berkeley, before joining AIChE.
- **2015** — Interviewed James E. Bailey Award recipient Martin Fussenegger for AIChE.
- **2016** — Interviewed Bailey Award recipient Sang Yup Lee for AIChE.
- **2019** — Helped launch the Center for Hydrogen Safety with DOE and PNNL.
- **2020** — Co-founded Orbillion Bio with Patricia Bubner and Samet Yildirim; served as CTO.
- **2021** — Orbillion participated in Y Combinator Winter 2021.
- **2024** — US cultivated-meat patent application naming him as a co-inventor was published; co-founded HexemBio.

## Achievements

- First author of a 2015 Plant Physiology paper on a pectin methyl esterase involved in embryo development.
- Helped establish the Center for Hydrogen Safety in April 2019.
- Co-founded Orbillion Bio, a Y Combinator Winter 2021 company now listed by YC as acquired.
- Named co-inventor with Patricia Bubner and Laura Daley on US patent application US20240081377A1.
- Co-founded HexemBio and leads it as CEO.

## Latest updates

- **2026-08** — Appeared on Generation Space with Leah Martin and investor Jeffery Jiang; episode published August 6.
- **2026-09** — Interviewed by ChosunBiz for a September 22 article reporting $15.5 million in HexemBio financing led by Draper Associates.

## Links

- Website: https://hexemb.io/
- LinkedIn: https://www.linkedin.com/in/gabriellt/

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Profile page: https://yespress.io/gabriel-levesque-tremblay
Published by YesPress — https://yespress.io
Last updated: 2026-10-11