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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustrySchlierenTethys Robotics AG
Tethys Robotics AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Tethys Robotics AG develops and supplies the Tethys ONE underwater drone and related systems for automated inspections, 3D mapping and data collection in rough or fast‑flowing waters. The offering includes autonomous mission capabilities, multidirectional navigation, integrated sonar and sensor payloads, and custom payload integration for use in energy, infrastructure, maritime, search and rescue, and marine science applications.

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Tethys Robotics AG

Offering

Products & services

Industry:Mechanical Engineering IndustrySoftware Development
✓ Offered8
Underwater Drone
Underwater drone for inspections in rivers and tidal currents, with autonomous operation, 3D mapping, navigation, sensor integration and various payloads.
Automated Inspection
Robotic assessment of complex underwater environments and installations, with autonomous survey, 3D reality capture, investigation work and inspection in low visibility.
Energy Facility Inspections
Inspection, maintenance and monitoring of offshore oil and gas installations, offshore wind farms, hydropower plants and nuclear power plants.
Inspection of Infrastructure and Submerged Assets
Efficient end-to-end assessment of submerged installations for cable and telecommunications, civil engineering, commercial diving, clean water and aquaculture.
Search and Rescue Inspections
Portable underwater drone for autonomous inspection and assisted recovery in police, coast guard, border protection and rescue missions.
Underwater Monitoring
Autonomous monitoring with monitoring and detection of unexploded ordnance, as well as missions for security and humanitarian demining.
Vessel Inspections
Regular vessel hull inspections to improve safety, efficiency and the condition of vessels, as well as for proactive maintenance.
Marine Science Services
Support for Exploration & Discovery, Marine Research as well as Film & Photography with underwater drones and aquatic operations.
Trust & reputation

ranQ Trust Score of Tethys Robotics AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 58% · As of October 2026

Tethys Robotics AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Tethys Robotics AG scores 63.4 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.39.612%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Tethys Robotics AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Tethys Robotics AG scores 60.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.91.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.30.04%
Qualifications+0.00

Tethys Robotics AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Press

Media

October 30, 2025Media
ETH-Spin-off secures €3.5 million to advance its under water robot
startupticker.ch
October 30, 2025Media
Tethys Robotics advances subsea automation with EUR 3.5 million pre-seed round
venturelab.swiss

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Location

Zürcherstrasse 39d
8952 Schlieren

At a glance

Legal form
Corporation
UID
CHE-192.923.870
Founded
2024 · 2 years
Last commercial register change
September 14, 2026
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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