# Developers

Part ID: 8.05a · Layer 8 (Power generation & energy supply) · child of 8.05

Companies developing SMR and advanced reactor designs, ranging from near-term licensing candidates to early-stage concepts, several backed directly by AI operators.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| GE Vernova | developer | inferred | public | GEV | Hitachi BWRX-300 — with Hitachi Vantara |
| Nano Nuclear | developer | inferred | public | NNE |  |
| NuScale | developer | inferred | public | SMR |  |
| Oklo | developer | inferred | public | OKLO |  |
| Rolls-Royce | developer | inferred | public | RR.L | SMR |
| Westinghouse | developer | inferred | subsidiary |  | AP300/AP1000 |
| Aalo | developer | inferred | private |  |  |
| Blue Energy | developer | inferred | private |  |  |
| Deep Fission | developer | inferred | unknown |  |  |
| Holtec SMR-300 | developer | inferred | private |  |  |
| Kairos | developer | inferred | private |  |  |
| Last Energy | developer | inferred | private |  |  |
| Natura | developer | inferred | private |  |  |
| Newcleo | developer | inferred | private |  |  |
| Radiant | developer | inferred | private |  |  |
| TerraPower | developer | inferred | private |  |  |
| Terrestrial Energy | developer | inferred | unknown |  |  |
| Valar | developer | inferred | private |  |  |
| X-energy | developer | inferred | private |  | Amazon-backed |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.