Undisclosed · Robotics

Oshen raises $5m as ocean-robot production scales

Lunar Ventures leads financing for the Plymouth maker of autonomous C-Star vessels.

Oshen has raised $5 million led by Lunar Ventures, with AlbionVC, Twin Track and Concept Ventures participating.

The company says it now builds 15 C-Stars every six weeks and has another 100 on order. Its small wind-and-solar vessels serve weather observation and maritime security missions, making repeatable manufacturing increasingly important as customers move from individual trials to larger deployments.

Use of funds

Scale C-Star manufacturing.

Develop passive acoustic sensing, subsea infrastructure protection and anti-submarine capabilities.

Funding history

Undisclosed · This round$5M

Sources

  1. Oshen expands ocean robot production with $5m fundingalbion.vc · Aug 21, 2026