Eta Space

Eta Space develops cryogenic fluid management technologies for space and terrestrial energy applications. Founded in 2019 by former NASA engineers on Florida's Space Coast, the company specializes in zero-loss cryogenic storage and transfer, propellant densification, and in-situ resource utilization. Its flagship mission, LOXSAT, is a NASA-funded technology demonstration satellite launching in early 2026 on a Rocket Lab Electron to test cryogenic fluid management in low Earth orbit for nine months. LOXSAT is the precursor to Cryo-Dock, a planned commercial cryogenic propellant depot designed to service spacecraft with high-energy propellants via a standardized automatic umbilical. Eta Space also develops lunar ISRU systems, including a Lunar Propellant Production Plant for producing oxygen and hydrogen from polar resources, and a Lunar Oxygen Station for converting regolith into liquid oxygen. On the terrestrial side, the company builds liquid hydrogen production, storage, and refueling systems for transportation applications, funded in part by a Department of Energy award. The company has received two NASA Tipping Point awards totaling approximately $27 million.