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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

Alta Resource Technologies key facts

as of Oct 2026
  • Developer of a refining technology designed for the extraction of critical minerals from a diversity of feedstocks.
  • Alta Resource Technologies is valued at approximately $107.5M as of Oct 2026, set at its early-stage round, Dec 2025; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $38.4M across 2 recorded rounds; the latest was Early Stage VC ($28.4M) in Oct 2025.
  • Notable investors include Climate Capital, In-Q-Tel, DCVC, Baruch Future Ventures, Voyager (US) — 11 tracked in total.
  • Alta Resource Technologies has filed 1 Form D with the SEC, most recently Apr 2024 ($4.5M sold to 6 investors).
  • Status: Privately Held (backing).
PrivateMarketView mark
MEDIUM confidence
$107.5M

Valued at $107.5M at its early-stage round, Dec 2025. Nothing has traded since.

set by its last priced roundas of Oct 2026question about this number?
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Alta Resource Technologies funding rounds

2 rounds
Oct 2025Early Stage VC$28.4MSEC filing▮
Mar 2024Seed Round$4.5MSEC filing▮
Full funding history →

Alta Resource Technologies valuation

Alta Resource Technologies was valued at $108 million at its early-stage round in Dec 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Alta Resource Technologies raised?

Alta Resource Technologies has raised $38.4 million across 2 recorded rounds since 2024. The largest was a $4.5 million seed round in Mar 2024; the most recent was a $28.4 million early-stage round in Oct 2025.

Alta Resource Technologies has filed 1 Form D with the SEC, most recently in Apr 2024 ($4.5 million sold to 6 investors).

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.

About Alta Resource Technologies

Developer of a refining technology designed for the extraction of critical minerals from a diversity of feedstocks. The company's technology provides high-purity minerals for leading technology sectors and the US government, enabling clients to satisfy materials demand for advanced technologies, like semiconductors.

Sector
Materials and Resources
HQ
Boulder, CO, United States
Founded
2023
Employees
27
Ownership
Privately Held (backing)

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