# Sarah Lamaison

> Sarah Lamaison is the co-founder and CEO of Dioxycle, a Paris- and Bay Area-based climate-tech company building electrolyzers that turn industrial CO2 into ethylene and other chemicals using only water, electricity, and waste carbon. A chemist trained at Ecole Polytechnique, Cambridge, College de France, and Stanford, she turned her PhD on artificial photosynthesis into a company aiming to decarbonize one of the planet's dirtiest industries while staying cost-competitive with fossil feedstocks. She raised $17M in Series A funding led by Breakthrough Energy Ventures and Lowercarbon Capital, won the L'Oreal-UNESCO Young Talent award, and was named to Forbes 30 Under 30.

- **Role:** Co-founder & CEO at Dioxycle
- **Organizations:** Dioxycle
- **From:** Pays Basque, France
- **Nationality:** French
- **Education:** Engineering degree (chemistry, physics, mathematics), Ecole Polytechnique, Master's in Chemistry, University of Cambridge, PhD in artificial photosynthesis / electrocatalytic CO2 conversion, College de France / Stanford University, Postdoctoral research, Stanford University
- **Known for:** Co-founded and leads Dioxycle, a CO2-to-chemicals electrolyzer company, Raised $17M Series A from Breakthrough Energy Ventures, Lowercarbon Capital, and Gigascale Capital, L'Oreal-UNESCO French Young Talent Award for Women in Science (2020)

## Career timeline

- **2020** — Received the L'Oreal-UNESCO French Young Talent Award for Women in Science for PhD research in electrocatalytic CO2 conversion
- **2021** — Co-founded Dioxycle with David Wakerley to commercialize CO2-to-chemicals technology; selected as a Breakthrough Energy Innovator Fellow; won the French National i-Lab Innovation Prize
- **2023** — Named to Forbes 30 Under 30; raised $17M Series A led by Breakthrough Energy Ventures and Lowercarbon Capital; spoke at Stanford eCorner's Entrepreneurial Thought Leaders series

## Achievements

- Co-founded and leads Dioxycle, a CO2-to-chemicals electrolyzer company
- Raised $17M Series A from Breakthrough Energy Ventures, Lowercarbon Capital, and Gigascale Capital
- L'Oreal-UNESCO French Young Talent Award for Women in Science (2020)
- Breakthrough Energy Innovator Fellow (2021)
- French National i-Lab Innovation Prize with David Wakerley
- Forbes 30 Under 30 (2023)
- Multiple patents in electrolysis technology for CO2 conversion

## Latest updates

- **2023-07** — Dioxycle raised $17M Series A to deploy its first industrial electrolyzer prototype turning CO2 into ethylene
- **2023-11** — Spoke at Stanford eCorner's Entrepreneurial Thought Leaders series on climate-tech founding

## Links

- Website: https://dioxycle.com
- LinkedIn: http://www.linkedin.com/in/sarah-lamaison-phd-96594068
- Twitter/X: https://twitter.com/dioxycle
- YouTube: https://www.youtube.com/watch?v=SSqFeJZWmUo

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Profile page: https://yespress.io/sarah-lamaison
Published by YesPress — https://yespress.io
Last updated: 2026-06-06