Redwood Materials, founded in 2017 and based in Nevada, recycles end-of-life batteries to recover lithium, nickel, cobalt and copper, and has added a grid energy storage business. It raised a $350 million Series E led by Eclipse in October 2025.
At a glance
| Price from | Custom |
| Best for | Battery makers, carmakers and grid operators |
From Redwood Materials's own website.
What stands out
- Large-scale recycling operations
- Two linked revenue lines
Worth knowing
- Capital-heavy business
- Prices not published
How it ranks
Redwood Materials is ranked 1st of 10 in Best Climate Tech Startups (Lister Score 96.9).
#1 in Best Climate Tech Startups · Lister Score 96.9
NVIDIA's venture arm, NVentures, joined Redwood's $350 million Series E, led by Eclipse..
| Rank | Best Climate Tech Startups | Score |
|---|---|---|
| 1 | Redwood Materials | 96.9 |
| 2 | Octopus Energy | 95.6 |
| 3 | Fervo Energy | 94.4 |
| 4 | Form Energy | 93.1 |
| 5 | Antora Energy | 91.8 |
| 6 | Watershed | 90.5 |
| 7 | Group14 Technologies | 89.2 |
| 8 | Twelve | 87.9 |
| 9 | Heirloom | 86.6 |
| 10 | Rondo Energy | 85.3 |
Frequently asked questions
How does Redwood Materials rank on Lister?
Redwood Materials is ranked 1st of 10 in Best Climate Tech Startups (Lister Score 96.9).
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