Fluxnium, Inc. has raised a $7 million seed round led by Congruent Ventures, with participation from Constellation Technology Ventures and Active Impact Investments, to develop and scale its seawater uranium adsorption technology.
Seawater uranium technology and funding use
The company said the funds will be used to develop, pilot and scale its adsorption technology. Material details released with the financing state the $7M adds runway to develop and pilot a potential new uranium supply source.
The round was led by Congruent Ventures, signaling climate‑tech venture capital validation that could ease future fundraising, and included participation from Constellation Technology Ventures and Active Impact Investments. The participation of a Constellation unit was noted in the material details as a strategic investor that boosts credibility.
The announcement frames the financing as early‑stage support for a pre‑commercial effort to create a domestic uranium source via seawater adsorption. The context provided with the release identified likely catalysts for the technology’s progress as successful pilot results, cost validation versus mining, and offtake or deployment commitments; achieving near‑term milestones could help de‑risk commercialization.
