The investment was led by Congruent Ventures with existing investors including Activate Capital, Acme Capital, Costanoa Ventures, and Radical Ventures. ArcTern Ventures was a new participant. The round comprises $44.5 million in equity and $45 million in credit facilities
The latest Series B1 round bring its total Series B funding to $146 million.
Operations
Muon Space says the investment will enable it to scale-up operations. This includes expanded satellite production, and the vertical integration of components such as propulsion and IR & RF instruments.
The company added it would also allow deployment of its full-stack automated constellation operations platform. Finally, it anticipates expanding its global ground station network.
Muon Space
“We’re focused on delivering mission-optimized satellite constellation systems to customers at unprecedented speed,” said Jonny Dyer, the CEO (above). “High-performance constellations require the speed, cost, consistency, and performance of volume production – they can’t be built one satellite at a time.
“We are building the world’s first automated, high-mix, high-volume constellation manufacturing system. It’s always been about the mission – now we’re delivering it at scale.”
For its part, Congruent Ventures highlighted the importance of accessing both commercial and defence customers.
“Muon is building the high-performance scale solution the space industry has been missing,” said Joshua Posamentier, Managing Partner at Congruent Ventures. “By fulfilling mission requirements with a configurable, vertically integrated platform spanning hardware, software, and operations, they deliver a unique path to on-orbit capabilities – at a pace and price point that commercial, civil and national security customers urgently need.”
Headquarters
The company headquarters are in Mountain View, California.
It highlights it has grown its team by 50% since December and passed $100 million in new contracts signed in 2024. This includes an agreement with SNC (Sierra Nevada Corporation) to develop satellites supporting its Vindlér commercial RF sensing constellation.
Recently it opened a 130,000-square-foot facility in San Jose. This will serve as Muon’s production center, housing manufacturing and test operations from raw material through to finished spacecraft.
“Purpose-built for full vertical integration and high-throughput satellite production, the facility can support up to 500 satellites annually in the 100kg to 500kg+ class,” writes the company.
It also bought Starlight Engines, a propulsion startup working on solid propellant Hall-effect thruster systems.
Image: Muon Space
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