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YC S26 · Active

Kara

Making Diamond Semiconductors

Class
Summer 2026
Status
Active
Industry
Industrials
Location
San Francisco, CA, USA
Team size
2

Website

https://karalabs.ai/

About

Kara is building diamond semiconductors. We begin with growing ultra-high purity diamond wafers for advanced hardware. Used in data centers, spacecrafts, RF systems, and quantum hardware, our diamond moves heat up to 5× better than copper, helping critical systems run cooler, faster, and more reliably. Diamond has spent centuries as a symbol. We are turning it into infrastructure.