Tethys Robotics raises €3.5M Pre-Seed round

30 October 2025· Zurich, Switzerland· marine, energy, robotics, ai, b2b, software_hardware

The capital will be used to further develop and scale Tethys ONE, a compact hybrid underwater drone capable of both remote and autonomous operation. The system is designed for safety-critical missions, including inspections and maintenance in offshore wind, oil, and gas sectors, disposal of explosive remnants of war, and search-and-rescue missions under extreme conditions. The funds will also accelerate product development, expand the team, and enable global scaling.

Investors

LeadRedstone
Also participating
Venture KickETH FoundationKickfundZürcher KantonalbankAlpine VCEuregio+

About Tethys Robotics

Stage
Pre-seed
Headquarters
Zurich, Switzerland
Founded
2018
Team Size
6–20
Sectors
marineenergyroboticsaib2bsoftware_hardware

Source: https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQE9tWKMnlPcxDz7flz2-9BSXDzqlf4eCaSxOW3uXYF22qqfFULxAvfdzrSPTqyDnzMKC_JxwFeruSdIz0z4OR68d3N9TIb1yqvOqDnNdcsd_FCSfs992Uedprv-hIao4-ClXnFO8qS-LEN3QlQGEm0I6O_xwjIy8BAlCf_lPAhcYw-nN4xUn4mZiyONyxRJbgIwTDu5kdquXWjMZliFe70cYhXCxPdpf7qEmXuz_H02tXGZzJMMkyFnkpVXq-8nHDfEOq3mHv8_5rdk-6MVCVcnSroWbjGQdaM