Alteon raises $2.5M pre-seed for long-endurance autonomous aircraft
Alteon raised a $2.5 million pre-seed round to develop dynamic-soaring autonomous fixed-wing aircraft for persistent maritime surveillance.
Verified eventAlteonSep 1, 2026
Evidence notes
- Lachy Groom led the round and Together Fund participated.
- The 20-person company was building four to five test aircraft per week and had completed more than 200 test flights in the preceding month.
- Capital will support development of an aircraft intended to harvest wind energy for ultra-long-endurance maritime missions; year-long endurance remains a target, not a demonstrated capability.
Company context
Alteon develops autonomous fixed-wing aircraft that use dynamic soaring and airborne energy harvesting to pursue ultra-long-endurance maritime surveillance.