Panthalassa raised $140 million this year to develop autonomous ocean platforms that generate electricity from waves to power AI inference computing at sea. The company plans to use these funds to complete a pilot manufacturing facility and begin deploying its Ocean-3 systems.
Aptera currently requires approximately $40–45 million to finalize tooling and validation for low-volume production. An additional $140–160 million is needed to scale its existing facility to a target output of about 20 000 vehicles per year.
Aptera has collected roughly 50 000 vehicle reservations, with customers typically paying a refundable $100 fee. These unearned reservation fees total approximately $4.1 million on the company's balance sheet.
Destinus, which previously focused on liquid-hydrogen supersonic passenger aviation, shifted its commercial strategy toward defense and autonomy. In April 2026, the company entered a joint venture with Rheinmetall to develop missile systems.
Gravitricity, which pursued mine-shaft gravity storage and underground hydrogen storage, entered creditors' voluntary liquidation in October 2025 after failing to establish a repeatable commercial business.
