Muon Space Raises $250 Million Series C To Scale Satellite Constellations

Muon Space has raised $250 million in a Series C financing round led by Eclipse, with participation from Galvanize, Google, Salesforce Ventures, Wellington Management, I Squared Capital, and Woven Capital.

Existing investors including Radical Ventures, Congruent Ventures, Costanoa Ventures, Activate Capital, ACME Capital, ArcTern Ventures, and Overlap Holdings also participated.

The round brings Muon’s total equity funding to more than $386 million.

The company said the funding will support production of large-scale satellite constellations, expansion of its dual-use spacecraft platforms, and growing demand from commercial, government, and international sovereign customers.

Muon also plans to invest in advanced payloads, on-orbit AI computing, and high-bandwidth satellite connectivity through a partnership with SpaceX Starlink.

Muon deployed seven satellites during the first half of 2026, bringing its total to 11 satellites across six launches with a 100% mission success record.

The company is also developing more than 50 satellites for customers, including 13 already manifested for launch over the next year, and recently opened a San Jose manufacturing facility designed to produce up to 500 satellites annually by 2027.

Muon CEO Jonny Dyer said the company's Mission Foundry is designed to help customers deploy complete constellation systems in months rather than years.

Eclipse founder and CEO Lior Susan said Muon’s integration of mission design, manufacturing, launch, and operations creates a repeatable model for deploying space infrastructure at scale.

Image credit: Muon Space