Karman+ Bets Asteroid Water Can Become Orbital Fuel: $20M Seed, 2027 Launch Validation

Develops autonomous asteroid-mining spacecraft: fly to near-Earth asteroids, mine and extract water from regolith, convert it into hydrogen-oxygen propellant, and provide refueling services for on-orbit satellites and tugs.

Bets that near-Earth asteroids are the easiest-to-reach resources, enabling cheaper on-orbit refueling than launching from Earth, starting with GEO tugs.

$20M seed round (2025-02, led by Plural and Hummingbird, with participation from HCVC, Kevin Mahaffey, and the CEO himself).

After Teun van den Dries sold the real-estate data company GeoPhy (about $290M, closed in 2022), he reassessed his life direction and founded Karman+ with data scientist Daynan Crull. He judged asteroid mining to be underestimated: near-Earth asteroids are near the ecliptic plane and easier to reach than the Moon. In February 2025, the company came out of stealth, announced a $20M seed round, and disclosed its first mission, High Frontier.

High Frontier is Karman+'s first technology-verification spacecraft: fly to a near-Earth asteroid, grab regolith at the kilogram scale, return scientific data, and keep total mission cost to $10–15M. The 2025 EPSC-DPS conference abstract shows that the launch window is set for SpaceX Transporter 19, around early 2027, with the primary target asteroid 2022 DC5 and the mission expected to be completed in mid-2028. TechCrunch pointed out risks: the spacecraft has not yet been built and tested, on-orbit refueling itself has not yet been solved, and additional financing will be needed as launch approaches.

Still building: as of 2026-09-01, there has been no launch or shutdown news; High Frontier's launch window has slipped from the initially promoted 2026 to around early 2027, and the company is advancing development of autonomous navigation and zero-gravity excavation equipment on schedule.

Serve existing demand for satellite refueling, not future asteroid mining.

Low mission cost lets seed round cover development, avoiding huge capital.

Near-Earth asteroids are easier to reach; screen for accessibility and size.

Open data builds trust, unlike expensive national missions.

Prove demand with a small mission before grand narrative: target GEO refueling, use off-the-shelf parts, keep demo under $15M.

As of 2026-09-01: Karman+ remains in the building stage. The High Frontier mission was described at the 2025 EPSC-DPS conference as funded, with a launch window around early 2027 (SpaceX Transporter 19), completion expected in mid-2028, and primary target asteroid 2022 DC5; public news contains no new financing or launch progress, and the official line still emphasizes supplying fuel to GEO tugs. The company is headquartered in Colorado, and the team is simultaneously developing beacon nav autonomous optical navigation and zero-gravity excavation equipment.