Adding a few I know of: https://groq.com/ https://groq.com/ - From the team that built the original TPU at Google https://lightmatter.co/ https://lightmatter.

Adding a few I know of: https://groq.com/ https://groq.com/ - From the team that built the original TPU at Google https://lightmatter.co/ https://lightmatter.co/ - Light tubes instead of copper