K2 Space secured $250 million in Series C funding at a $3 billion valuation as it moves to scale production of large, high-power satellite platforms designed for emerging heavy-lift launch vehicles. The Torrance, California–based company reported more than $500 million in signed commercial and U.S. government contracts, with the round led by Redpoint and participation from accounts advised by T. Rowe Price Associates, Hedosophia, Altimeter, Lightspeed, and Alpine Space Ventures.
Founded in 2022, K2 Space targets a new class of spacecraft optimized for Falcon 9, Vulcan, Ariane 6, Starship, and New Glenn. The company has focused on developing core subsystems in-house, including high-power electric propulsion, large solar arrays, radiation-tolerant avionics, and high-voltage power systems, aiming to support missions across LEO, MEO, and GEO. Earlier in 2025, K2 validated key subsystems through a hosted-payload flight, de-risking its architecture ahead of full integration.
K2 plans to launch its first fully integrated “Mega Class” satellite, GRAVITAS, in March 2026. The platform targets roughly 10× the power of satellites in its class and serves as the production baseline for a planned manufacturing ramp at K2’s 180,000-sq.-ft. (16,700-sq.-m.) Torrance facility, which the company says can produce up to 100 satellites per year. Multiple launches are scheduled for 2026–2027, with initial constellation deployments beginning in 2028.
- $250M Series C financing at a $3B valuation, led by Redpoint
- More than $500M in signed commercial and government contracts
- GRAVITAS Mega Class satellite launch planned for March 2026
- In-space demonstration of a 20 kW Hall-effect thruster and 20 kW solar arrays
- Factory capacity sized for up to 100 high-power satellites per year
- Future “Giga” platform planned for Starship and New Glenn, targeting 100 kW per satellite
“GRAVITAS brings our full stack together for the first time,” said Karan Kunjur, co-founder and CEO of K2 Space. “We are validating the architecture in space, from high-voltage power and large solar arrays to our guidance and control algorithms and a 20 kW Hall thruster, and we will scale based on measured performance.”
🌐 Analysis
K2 Space’s funding round underscores growing investor interest in satellites that exploit heavy-lift launch economics to deliver higher power and more capable on-orbit platforms. The company’s roadmap positions it alongside other manufacturers pursuing larger, more flexible spacecraft architectures as operators such as SES and national security customers plan next-generation MEO and multi-orbit constellations.
