Muon Space Raises $250M Series C to Build Large-Scale Constellations 

A rendering of Muon Space's Condor-XL satellite platform. Photo: Muon Space

Muon Space closed a $250 million Series C round as the satellite manufacturer looks to accelerate building large-scale constellations and grow differentiated mission capabilities. This brings the company’s total fundraising to more than $386 million and follows a Series B and Series B expansion in 2024 and 2025. 

Eclipse Capital led the funding round, which also included Galvanize, Google, Salesforce Ventures, Wellington Management, I Squared Capital, and Toyota’s Woven Capital. Existing investors Radical Ventures, Congruent Ventures, Costanoa Ventures, Activate Capital, ACME Capital, ArcTern Ventures, and Overlap Holdings participated as well. 

Muon Space has now launched 11 satellites for customers, including seven satellites in the first half of this year. The company reports it now has 50 satellites in development. Its customers and missions include FireSat constellation for Earth Fire Alliance, Sierra Nevada Corporation (SNC) Hubble Network, and Hydrosat. 

Muon describes its business as a mission foundry and integrates mission design, spacecraft, payloads, software, operations, and data. The company plans to use this new capital to scale the mission foundry, accelerate new spacecraft platforms, and invest in new technologies and payload capabilities. In June, the company debuted a higher power satellite platform called Condor, geared toward orbital compute and networking. 

“We’ve built the Mission Foundry to help customers deploy complete constellation systems in months instead of years,” said Jonny Dyer, CEO of Muon Space. “As more industries rely on space-based intelligence, communications, and compute, this investment allows us to accelerate the next generation of space infrastructure.”