Manufacturing industrial

Osium AI

Website
Founded 2023Origin source ↗Checked 2026-09-15

Overview

Our AI-powered software enables materials R&D engineers to design new materials much faster.

To date, manufacturing companies rely on trial-and-error and manual approaches to develop new materials. This is a tedious and time-consuming process. Yet, carbon neutrality requirements urge manufacturers to adopt greener and lighter materials to decarbonize the industry.

Company description As recorded 2026-11-08
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Founders & team

Previously Matter.ai

Company history As recorded 2026-11-08

Sarah Najmark

Founder

Sarah is the co-founder and CEO of Osium AI, which she started with Luisa Bouneder, her close friend since College. She studied Mathematics, Physics and Chemistry at Ecole Centrale Paris. She holds a Master in Science from Stanford University where she conducted and led AI research. Sarah has deep expertise in AI technologies applied to complex systems as she spent 3 years as a Tech Lead and Product Manager at Google X, the moonshot division of Google. She authored 2 AI patents.

LinkedIn
Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

Founded 2023 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedParis, Île-de-France, France
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding year
startup.observe Directory coverage · Sources & method