I asked people: "which AI supply chain startups (compute, power, chips, datacenters) valued at $10b or less are most interesting?"
10 votes: MatX
8: American Terawatt
6 each: Lightmatter, Modal, Prime Intellect
4 each: Valar Atomics, Wafer
3 each: Ayar Labs, d-Matrix, Gimlet Labs, Heron Power, Olix, Panthalassa, Positron, Substrate, Taalas, Tenstorrent, xLight
2 each: Aalo Atomics, Corintis, Fab2, General Matter, Ornn, SF Compute, Starcloud, Stone Power, TensorWave
1 each: 49 more startups, see image and below
People also voted for Base Power, Crusoe, Etched, and Fluidstack but those are over the valuation limit.
Disclosure: I'm a small angel in American Terawatt and Wafer. I didn't vote.