K2 Space

K2 Space designs and manufactures large-scale, high-power satellite platforms for operation across low Earth, medium Earth, and geostationary orbits. Founded in 2022 and based in Los Angeles, the company operates a 180,000-square-foot production facility in Torrance, California, where it vertically integrates spacecraft subsystems including radiation-hardened avionics, reaction wheels, flight computers, and deployable solar arrays generating over 100 kilowatts of power.

The company produces two platform lines. The Mega Class, branded GRAVITAS, is designed for current heavy-lift rockets such as Falcon 9, Vulcan, and Ariane 6, delivering approximately ten times the power of comparable satellites in its class. The Giga Class targets super-heavy launch vehicles like Starship and New Glenn, supporting payloads up to 15 metric tons. Both platforms use K2's in-house 20-kilowatt krypton-fueled Hall-effect thruster, roughly four times more powerful than any electric propulsion system previously flown.

K2 Space has raised approximately $429 million in venture funding through a December 2025 Series C led by Redpoint at a $3 billion valuation. The company holds over $500 million in signed contracts from commercial operators including SES and United States defense agencies, with constellation deployments planned beginning in 2028.