Fluxnium
Startup developing technology to extract uranium from seawater using specialized polymer fibers.
Fluxnium is an energy company based in US. It has raised $7 million in disclosed funding. Its latest round was a Seed of $7 million in September 2026.
Overview
No overview yet. It is written from sources once there are enough of them.
Funding
Total disclosed: $7M across 1 round. Computed only from sourced rounds.
Investors
Questions and answers
What does Fluxnium do?
Startup developing technology to extract uranium from seawater using specialized polymer fibers.
How much has Fluxnium raised?
Fluxnium has raised $7 million in disclosed funding across 1 round tracked by OSH.
Who has invested in Fluxnium?
Investors in Fluxnium include Congruent Ventures, Active Impact Investments, and Constellation Energy.
Sources
- 1.Clean tech startup Fluxnium found a way to tap 50,000 years’ worth of nuclear fuel — TechCrunch Startups, Sep 16, 2026