Akash Systems

Akash Systems grows synthetic diamond directly onto semiconductor chips to pull heat out of them. Diamond conducts heat better than any other known material, and the founders, Felix Ejeckam, who pioneered gallium-nitride-on-diamond at Group4 Labs, and Ty Mitchell, started the company to apply it to satellite radio amplifiers, which are limited by how hot their power transistors run.

The satellite line produced flight hardware, including a diamond-cooled radio the company says reached orbit on a Pixxel launch in January 2025. But the flagship product has changed. Since 2024 Akash has aimed the same diamond process at AI data centers, selling diamond-cooled versions of Nvidia and AMD GPU servers on the argument that heat at the chip is what caps compute density.

In February 2026 it delivered its first diamond-cooled Nvidia servers to NxtGen, an Indian cloud provider and its one named customer in the new market. A preliminary CHIPS Act agreement from late 2024, toward a diamond-substrate fab in West Oakland, was explicitly non-binding, and no closing has been announced. Nearly every performance figure and first in this story traces to the company's own releases, and it now competes in data-center cooling against entrenched liquid-cooling suppliers many times its size. The satellite radios remain in the catalogue, reading more like the origin than the business.