Fluxnium, Inc.
A uranium-supply technology that uses reusable high-surface-area fibers to adsorb dissolved uranium from seawater for nuclear fuel production.
$7MSeed
LeadCV
Congruent Ventures
Activity from announced rounds
Activity in this selectionOct 24, 2026 · Climate tech · Jan 1, 2026
Congruent Ventures is an investment firm whose managing partner Joshua Posamentier identifies Lydian and Robigo among the investments he oversees.
Recorded funding activity
Robigo engineers microbes for targeted crop protection. Other recorded activity includes Fluxnium’s reusable fibers for extracting uranium from seawater and Muon Space’s customer-specific satellite constellations. These examples preserve each company’s mechanism rather than assigning a strategy from sector labels alone.
Sources
- Rounds participated in
- 6
- Confirmed lead rounds
- 1 5 roles undisclosed
- New companies
- 6 First participation on record · 0 follow-on
- Funding in participating rounds
- $137.5M 6 disclosed · full round size, not this investor’s share
By stage
By primary sector
By country
Rounds
6 in this selectionRockRose Risk
Offers wildfire mitigation and insurance for property owners through a single platform
$12.5MSeries A
Role not disclosedLydian
Lydian develops sustainable aviation fuel.
$43MSeries A
Role not disclosedHalcyon
Provides AI platform for analyzing and accessing complex energy data for industry professionals
$21MSeries A
Role not disclosedZeno
Develops electric motorbikes and an app-controlled battery-swapping network
$25MSeries A+Debt
Role not disclosedAvalanche Energy
Develops modular compact fusion machines for clean energy applications
$29MSeries A
Role not disclosed