Alta Resource Technologies

Boulder, CO · Founded 2023 · Privately Held (backing)

Developer of a refining technology designed for the extraction of critical minerals from a diversity of feedstocks. Alta Resource Technologies is based in Boulder, CO and was founded in 2023. It was valued at $108 million at its early-stage round in Dec 2025, the last priced event on record. It has raised $38.4 million across 2 recorded rounds; the latest was a $28.4 million early-stage round in Oct 2025.

PMV mark · valuation
$107.5M
Oct 2026
Priced at
its early-stage round
Dec 2025
Total raised
$38.4M
Last round
Early Stage VC
Oct 2025

Who backs Alta Resource Technologies?

11 investors
InvestorType
Climate CapitalVenture capital
In-Q-TelVenture capital
DCVCVenture capital
Baruch Future VenturesFamily office
Voyager (US)Venture capital
Overture Ventures—
Juniper (San Francisco)—
WovenEarth VenturesFund of funds
Defense Advanced Research Projects Agency—
Orion Industrial Ventures—
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Alta Resource Technologies investors

11 investors are on record for Alta Resource Technologies, including Climate Capital, In-Q-Tel, DCVC and Baruch Future Ventures. By type, the record holds 4 venture capital firms, 1 family office and 1 fund of funds. The early-stage round in Oct 2025 drew 17 investors.

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