Madrone alternatives
TL;DR: 12 companies doing similar work to Madrone in Industrials, ranked by how closely they match what Madrone actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Madrone. They are scored on how closely their own description overlaps with Madrone's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Madrone?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Apollo Atomics, Inc. | We make the most compact nuclear reactors | Spring 2026 | — | Active |
| Ferveret | Nuclear-inspired cooling that turns wasted power into more AI compute | Summer 2021 | 16 | Active |
| Atmeto | Building a frontier world model for power | Winter 2023 | 2 | Active |
| StableBrowse | Building the Data Infrastructure layer for Physical AI. | Spring 2026 | 3 | Active |
| Voxel Energy | Energy independent data centers with solar and repurposed batteries. | Winter 2026 | 3 | Active |
| Atomarine | Floating nuclear powered data centers at sea. | Summer 2026 | 2 | Active |
| Inviscid AI | Real-time Physics Simulations for Industrial Facilities & Data Centers | Winter 2026 | 2 | Active |
| Viraj Aero | Next generation engines for aircraft and data centers | Fall 2026 | — | Active |
| Validere | A carbon MRV solution for energy and hard-to-abate sectors | Summer 2016 | 110 | Active |
| Invertix | Energy Superintelligence, AI that operates critical infrastructure | Fall 2026 | 8 | Active |
| Carbic | using ultrasonics + ml to analyze fluid behavior at infrastructure… | Winter 2016 | 8 | Active |
| Micora | Microgrids in a box built anywhere in days | Fall 2026 | 4 | Active |
Is Madrone still active?
Madrone is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Madrone. They are then ranked on how closely their own description overlaps with Madrone's, so the closest matches come first rather than whoever happens to share a tag.