Oshen raises $5M to scale C-Star production
Oshen raised $5 million from Lunar Ventures, AlbionVC, Twin Track, Concept Ventures and angel investors to expand C-Star production and constellation-management software.

Evidence notes
- The Plymouth company plans to grow its fleet from roughly 50 one-metre C-Star autonomous surface vessels toward 150.
- Capital will support production scale-up and software for coordinating and managing larger robot constellations.
- C-Star deployments span ocean-data and acoustic sensing, including Royal Navy-funded work connected to North Atlantic hybrid-fleet programmes.
Company context
Oshen builds and operates constellations of C-Star autonomous surface vessels for persistent ocean sensing. The Plymouth company sells, rents and runs the one-metre wind- and solar-powered USVs as a data service across metocean, acoustic, environmental and maritime-security missions.