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Alta Resource Technologies
www.altatech.io ↗Developer of a protein-based mineral-separation platform, licensed from Lawrence Livermore National Laboratory and co-developed with Penn State, that uses engineered proteins to selectively bind and separate rare earth elements and other critical minerals from complex feedstocks like mined ore, e-waste, and mining tailings.
Critical Minerals
Funding
$38.4M
Stage
Early (Series A)
HQ
Boulder, CO
Founded
2023
The Current Angle
The tech originated at a national lab, and it's one of the more credible domestic bets on rare-earth/critical-mineral processing capacity, a sector the US has almost entirely ceded to China. Raised a $5.1M seed in January 2025, expanded it to $10M by May, then closed a $28.4M Series A by December, led by Valor Equity Partners and Atreides Management.
Leadership
- NRNathan RatledgeCo-Founder & CEO
Snapshot
- Target customer
- Critical mineral producers, battery and electronics manufacturers needing purified rare earths
HQ location
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