Funded Natural Resources Startups in United States
Across the 50 most recent natural resources rounds shown, the largest disclosed amount is Perpetua Resources’ $2.9B on 2026-05-21, which dwarfs every other…
Across the 50 most recent natural resources rounds shown, the largest disclosed amount is Perpetua Resources’ $2.9B on 2026-05-21, which dwarfs every other disclosed round in the list (the next-highest disclosed figure is Sedron Technologies at $500M on 2026-04-09). Stage labeling is also skewed: 26 of 50 entries are marked “Series Unknown,” while only a small subset show defined stages such as Seed, Series A, or Series B (e.g., CREW Carbon $19M as Series A on 2026-05-14; Epic Cleantec $12M as Series B on 2024-11-21).
The rounds cluster heavily in mid-2025 to mid-2026, spanning from 2024-05-03 (GREENTEK SOLUTIONS, $4M Seed) to 2026-06-12 (El Paso Minerals, $2M Seed). Geographically, several states recur around metals, water, and resource development (for example, Nevada appears multiple times with i-80 Gold $288M on 2026-03-19 and Hycroft Mining $44M on 2025-06-11), and California is also frequent (e.g., Aquaria $100M on 2024-11-20; Sedron Technologies $500M is in Washington, but “AstroForge” and other California-located entries appear in 2024–2025). Disclosed amounts include multiple large outliers in water and mining-scale funding, while a minority of entries list “undisclosed” amounts (7 of 50).
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Frequently asked
What’s the largest disclosed round in this natural resources list, and how extreme is it versus the rest?
Perpetua Resources’ $2.9B on 2026-05-21 is the largest disclosed round shown and it dwarfs the next-highest disclosed amount, Sedron Technologies’ $500M on 2026-04-09. No other disclosed entry in the 50-row view approaches that scale.
How is the stage information distributed (Series Unknown vs defined stages), and does it affect which rounds stand out?
26 of 50 entries are labeled “Series Unknown,” making the stage mix heavily unlabeled. Defined stages still include notable datapoints like Atana Elements $28M (Seed) on 2026-06-02, CREW Carbon $19M (Series A) on 2026-05-14, and Epic Cleantec $12M (Series B) on 2024-11-21.
Which rounds fall closest to the top of the date range, and what does the most recent entry look like?
The most recent row is El Paso Minerals’ $2M (Seed) on 2026-06-12. Immediately around it, the list includes Fortitude Gold $6M (Series Unknown) on 2026-06-05 and Atana Elements $28M (Seed) on 2026-06-02, showing a mix of small-to-mid disclosed sizes rather than another mega-round like Perpetua’s.
Are there meaningful geographic concentrations (states) across these 50 entries?
Nevada appears repeatedly, including i-80 Gold $288M on 2026-03-19 and Hycroft Mining $44M on 2025-06-11, while Arizona also recurs with TriStar Gold $7M on 2026-05-20 and Alaska Silver $14M on 2025-10-01 (both Arizona-listed). California is likewise represented multiple times, including Aquaria $100M on 2024-11-20 and GREENTEK SOLUTIONS $4M (Seed) on 2024-05-03.
What are the largest outliers besides the biggest round, and where do they sit in the timeline?
Beyond Perpetua’s $2.9B, the next-largest disclosed amount is Sedron Technologies at $500M on 2026-04-09, followed by Central States Water Resources at $325M on 2024-12-02 and i-80 Gold at $288M on 2026-03-19. These top-end rounds are spread across both 2024 (Central States Water Resources) and 2026 (Sedron Technologies, i-80 Gold).
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