K2 Space

Space · Satellites · Defense Tech

Funding

K2 Space raises $500M Series D at $6.8B valuation for big satellites

The startup is betting bigger, power-hungry spacecraft beat the industry's decade-long push toward smaller and lighter.

• K2 Space raised a $500 million Series D at a $6.8 billion valuation, co-led by Kleiner Perkins and ICONIQ, with CapitalG, Lightspeed, Altimeter, Spark Capital, Sands Capital, ARK Invest and T. Rowe Price also participating.
• Founded four years ago by brothers Karan and Neel Kunjur, the Torrance, California company builds large, high-power satellites for commercial and defense customers, including the US Space Force.
• K2's Mega-class satellite carries up to 3,000 kg of payload and tens of kilowatts of power; a planned Giga-class platform would scale to about 100 kilowatts for far larger payloads, including in-orbit computing.
• The valuation has more than doubled in seven months, up from $3 billion when K2 raised a $250 million Series C in December 2025.
• K2 has now raised over $1 billion in total capital and says it holds more than $1 billion in signed commercial and government contracts, including satellites for SES's meoSphere network and the Golden Dome missile defense program.
• The fresh capital funds a push toward manufacturing capacity of up to 100 large satellites per year, with the company's first 20kW satellite, Gravitas, already on orbit and a multi-satellite Trinity mission planned for Q2 2027.
• K2's bet that falling launch costs and bigger rockets make heavy, power-dense satellites viable runs counter to years of industry emphasis on miniaturization, and its scale-up plans will test whether it can manufacture complex spacecraft repeatably rather than as one-off demos.