Companies

DuraniumSummer 2025Active

San Francisco · CA, USA · founded 2025 · https://www.duranium.co/

Diligence memoA one-page analyst read on Duranium — recommendation, valuation, rhythm, risks.
Total raised · real
0
Rounds
Latest step-up
Top 5%
Sector rank · raised
Latest stage · inferred

Duranium: limited disclosed financing to assess.

Synthesized from the figures below est. — every claim rests on a number shown on this page.

AI analyst read est. — model-extracted from this company's public description, not a verified fact. 30%

operates a technology-led product inferred from public copy

Grounded in: “You are a venture analyst

Reshoring critical metal production

China and Russia control the world’s critical minerals. We can produce Titanium, Magnesium, Aluminum, Zirconium & Hafnium in the U.S. more profitably than any existing process, and carbon neutrally via co-production. Carbochlorination is the primary process for producing critical metals like titanium, hafnium, and zirconium, and was once the standard for magnesium. The problem: conventional carbochlorination relies on purchasing carbon feedstocks, wastes valuable byproducts, and is highly CO₂-intensive. Duranium changes this with a novel reactor that recycles CO₂ emissions back into feedstock (CO) while generating a valuable co-product (bleaching agents). This closed loop slashes emissions and delivers Chinese-level metal pricing without subsidies — unlocking the full potential of carbochlorination for U.S. critical mineral production.

ManufacturingAdvanced MaterialsClimateTech
Find Duranium online

As reported in public records reported — not modeled.

US
Jurisdiction
Amount raised vs valuation, by round

Solid bars are reported offering amounts reported; hatched bars are the modeled post-money valuation est. — both on one shared scale so you can read raise-vs-worth at each round directly. Use the toggles to overlay data labels and the niche-peer / market average value lines.

No round amounts on record to chart.

Financing ladder & sequence gaps

No staged rounds to sequence.

Modeled valuation trajectory
Base estimate est.
Conservative case
Upside case
Modeled post-money

Round size and date are reported; the stage label is inferred from round size. Valuation is modeled from stage benchmarks. Directional, not a quoted figure.

Not enough modeled valuation points to chart a trajectory.

Financing rhythm
Avg between rounds
Capital velocity
On record since
First round
0
Rounds on file
How it compares to the market

Benchmarked against 8525 companies in this sector. Each bar is a median (the middle company, not an average — outliers don't skew it). Two yardsticks: real money raised (reported on Form D) and modeled value (our estimate est.). These are whole-sector medians across all stages, except the per-stage row.

Total raised — vs sector median (real $, all stages)
This company
Sector median$1.3M
Modeled value — vs sector median (estimate, all stages)
This company
Sector median$14.6M

Raised more than 96% of sector peers (real $). Modeled value above 96% of peers (estimate).

Full financing history

Stage is inferred from round size est., not reported on the filing — a round's dollar size maps to a bucket: Pre-Seed <$1.0M · Seed $1.0M–$4.0M · Series A $4.0M–$15M · Series B $15M–$40M · Series C $40M–$100M · Series D+ $100M–$400M · Growth/Late >$400M.

StageAmount · realAnnouncedPost-money · estValue · estConf.
No rounds recorded.
Intelligence
Modeled next raise
Modeled next size est.
Last step-up
Capital velocity

Predictive signals are modeled est. from this company's own cadence and step-up, plus sector benchmarks — directional, not advice. Peer set and a CSV export live in your analyst workspace.

Registry & provenance

Duranium is an official record sourced from the U.S. Securities and Exchange Commission (SEC). U.S. data is aggregated from SEC Form D filings.

United States
Country of record
US
Jurisdiction
Semantically similar

Matched by meaning, not labels — a local language model reads each company's name, sector and description and ranks the closest in that learned space. This catches look-alikes that cross sector boundaries; the structured list above explains its matches, this one trusts the text. Directional, like every modeled signal here.

CompanySectorStageValue · estMatch
STRATEGIC CRITICAL METALS CorpOther EnergySeries B$197.2M74%
Critical Metals Corp.Mining & ResourcesSeries B$94.3M74%
Critical Elements Lithium CorpMining & ResourcesPre-Seed$688K74%
Global Energy Metals Corp.Other EnergyPre-Seed$1.7M73%
US Critical Metals Corp.Mining & ResourcesPre-Seed$3.6M73%
American Pacific Borate & Lithium LtdOther EnergySeed$26.0M72%
Carium, Inc.Other TechnologySeries A$59.2M72%
Ascend Elements, Inc.
Ascend Elements manufactures advanced battery materials using valuable elements reclaimed from discarded lithium-ion batteries. Our patented Hydro-to-Cathode process transforms todays waste into high-value materials for tomorrow's EV batteries a giant step up the entire industry.
Climate / CleantechGrowth/Late$6.6B72%
Frequently asked
What does Duranium do and where is it based?
Duranium is a private company, based in San Francisco, CA, USA. Reshoring critical metal production
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