The Commercial Race to Clean Up Earth’s Orbits
Over 36,000 tracked objects larger than 10 cm orbit Earth at velocities exceeding 28,000 km/h, and the count is rising exponentially with mega-constellation deployments. What was once a government-only domain — catalogued by the U.S. 18th Space Defense Squadron — has become a commercial market projected to reach 00 million by 2028 (41.7% CAGR). Startups now span the full value chain: tracking debris with ground-based radar and in-orbit sensors, predicting conjunctions for satellite operators, and physically removing dead objects through capture-and-deorbit missions.
Active Debris Removal: From Demonstration to Operations
The field crossed a critical milestone in 2024 when Astroscale completed the ADRAS-J mission, the first commercial rendezvous and proximity operation with a piece of debris in orbit. ESA’s €86M contract with ClearSpace for the ClearSpace-1 mission — targeting the PROBA-1 satellite for removal — represents the first government purchase of a debris removal service. Meanwhile, U.S.-based Kall Morris (KMI) sent its gecko-inspired REACCH capture mechanism to the ISS for testing aboard SpaceX CRS-31.
Tracking & Space Situational Awareness
LeoLabs operates 11 phased-array radar stations across seven countries, offering the most comprehensive commercial catalog of LEO objects — tracking debris as small as 2 cm. Companies like Kayhan Space and Slingshot Aerospace sit on the analytics layer, ingesting tracking data to provide conjunction alerts and maneuver recommendations to satellite operators.
Capture Technologies at a Glance
| Approach | Company | Status |
|---|---|---|
| Robotic arm capture | ClearSpace | Mission contracted (launch ~2028) |
| Magnetic docking (ELSA-d) | Astroscale | Flight-proven (2021) |
| Gecko adhesion | Kall Morris (KMI) | ISS-tested (2024) |
| Electric Otter tug | Starfish Space | In development |
| Reusable Triton payload | Paladin Space | Prototype demonstrated |
Funding Landscape
Astroscale’s 2024 Tokyo Stock Exchange IPO — raising ~0M at a B valuation — signaled institutional confidence in the sector. Total venture capital into debris-related startups has exceeded 00 million, with government contracts from ESA, NASA SBIR/STTR, and the U.S. Space Force acting as anchor revenue. NASA alone awarded nearly 0M to six small businesses for debris remediation technology in recent funding rounds.