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K2 Space—K2 Space secures $500M Series D at $6.8B valuationMega Class Satellite BusK2 Space—K2 Space launches Gravitas, its first Mega Class satelliteMega Class Satellite BusK2 Space—K2 Space's Gravitas satellite demonstrates LEO-to-MEO orbit raise using onboard thruster

K2 Space

Mega and Giga satellite buses, high power platforms

US$6.8B privateest. 2022k2space.com (opens k2space.com)Checked 10 Oct

The brief

Analyst view
  • $500M Series D at $6.8B valuation, July 2026; backed by Kleiner Perkins, ICONIQ.
  • $1B+ in signed contracts including $60M Space Force STRATFI mission.
  • Factory sized for 100 high-power satellites annually.

Technical approach

As reported
Mega Platform

20 kW power, 1,000 kg payload

20 kW with 1,000 kg payload vs. 2 kW constellation satellites. Ten fit in Falcon 9, ~50 in Starship.

Giga Platform

Up to 15 tons payload

Built for Starship and super-heavy rockets, carrying up to 15 tons for Earth observation, lunar relays, and manufacturing.

Manufacturing

80% built internally

K2 manufactures in-house: power, attitude control, propulsion, thermal, and communications subsystems.

Hall-Effect Thruster

Orbit raising under its own power

K2's 20 kW Hall thruster climbs satellites from LEO to MEO in under 90 days, enabling multi-orbit missions.

Primer