Robot model
Otter (and Mariner X)
Maritime Robotics (founded 2005 in Trondheim, Norway by founder and chief executive Vegard Evjen Hovstein) makes the Otter, a small all-electric catamaran…
- Manufacturer
- Maritime Robotics
- Form factor
- maritime_surface
- Maturity
- commercial
- Lifecycle
- active
- Deployments
- 1
- Website
- maritimerobotics.com ↗
The verified answer
As of Sep 2026, DEPLOY verifies Otter (and Mariner X), a maritime surface by Maritime Robotics (commercial): 1 verified deployment on record. 4 sources back the record.
Overview
Maritime Robotics (founded 2005 in Trondheim, Norway by founder and chief executive Vegard Evjen Hovstein) makes the Otter, a small all-electric catamaran survey uncrewed surface vessel for sheltered and coastal waters, and the Mariner X, an offshore long-endurance USV, recorded in the maritime form factor. It raised more than 130 million Norwegian kroner in September 2024 in a round led by the Norwegian state-owned climate investor Nysno alongside Umoe, Holta Invest, and NRP Zero, has commercial customers including OceanX and DEME, and ran an autonomous-swarm demonstration for the US Navy in Trondheim Fjord in April 2026, placing it at commercial maturity as the international new-defense extension of the cohort into Norway, beyond the US Saronic and the UK and Germany Helsing.
Its Ukraine deployment is handled with symmetric verification rigor across two threads: a government-confirmed, Denmark-funded transfer of Otter USVs to Ukraine, attested on the record by the head of the Ukrainian Navy's Hydrographic Service, is the stronger thread establishing that Otters are in Ukrainian Navy service, while a separate Maritime Robotics and Teledyne Marine announcement that the Otter is now in use by the Ukrainian Navy is company-reported only with its sole quote from the company's defense vice-president, so the registry records that Otters are in service as government-confirmed but notes the quantity is undisclosed by both company and government and that whether the two threads describe the same hulls is not established. The number of vessels delivered to Ukraine and the value of any transfer are undisclosed everywhere and are not asserted.
Verified vs. claimed
- Maturity stage
- commercial(Commercially deployed with revenue-generating operations.)
- Sources on file
- View all sources →
Key facts
Weight
Payload
Operating speed
Runtime
Drive type
Specs
Notes
Specs
Runtime h
Weight kg
Form Factor
Data & sources
Press releases
1
Web sources
3
4 sources backing this record.View all →
Pricing
No verified price is on record for Otter (and Mariner X). Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.
Deployments (1)
- Otter (and Mariner X) at Norwayoperational
Ørsted, the world's largest offshore wind energy company, operates Maritime Robotics Otter uncrewed surface vessels (USVs) for survey, measurement, and inspection work in Norwegian offshore wind project development…
Otter (and Mariner X) on the deployment map
View the global mapWhere Otter (and Mariner X) is verified operating. Explore the deployment map by place and type.
Recent activity
Every change to this record is dated, sourced, and independently verified where marked.
- Verified media addedVerifiedJun 11, 2026
The Otter USV
- Verified media addedVerifiedJun 4, 2026
Maritime Robotics Otter USV
- Record createdJun 3, 2026
Added to the verified registry
- Deployment verifiedVerifiedJun 1, 2023
at Norway
Manufacturer-attributed media (1)
Manufacturer-supplied media at the model level. Not tied to an independently verified named-site deployment. Verification posture is product-showcase from the maker, distinct from the deployment-verified evidence in the section above.
Maritime Robotics' presentation of its Otter uncrewed surface vessel for seabed mapping and coastal survey.
Safety record
No incidents on record for Otter (and Mariner X).
Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.
Sources (4)
- https://www.maritimerobotics.com/otter
- https://www.nysnoinvest.no/nysno-investerer-i-det-norske-teknologiselskapet-maritime-robotics
- https://armyrecognition.com/news/navy-news/2023/denmark-supplies-otter-unmanned-surface-vehicles-to-ukraine
- https://www.maritimt.com/maritime-autonomous-drone-swarm-demonstrated-live-for-the-us-navy-in-trondheim
Common questions
What is Otter (and Mariner X)?
How much does Otter (and Mariner X) cost?
Is Otter (and Mariner X) actually deployed in the real world?
Who makes Otter (and Mariner X)?
Where is Otter (and Mariner X) deployed?
Can you buy Otter (and Mariner X)?
What are alternatives to Otter (and Mariner X)?
How does Otter (and Mariner X) compare to Corsair?
Is Otter (and Mariner X) a top maritime_surface?
What is Otter (and Mariner X)'s maturity stage?
Is Otter (and Mariner X) safe?
Methodology: Verified · 4 sources (1 primary) · last reviewed 2026-08-16
Verification posture
Verified
High confidence
Review state
Stable
Last reviewed 2026-08-16
Maturity + lifecycle
Maturity stage: commercial
Lifecycle: active
Architectural position
Cohort: maritime_surface
Sources by quality tier
- 3
- unclassified
- Unclassified source
- 1
- primary-company-ir
- Company IR disclosure
The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.
Methodology surface for Otter (and Mariner X).Recent coverage
Otter (and Mariner X) in third-party press
Attention vs reality over time
Media mentions per month (area) against verified deployment events (dots). A press spike over a flat deployment line is the hype gap, drawn over time.
In the press
Recent coverage mentioning Otter (and Mariner X) from third-party publications. Automatically surfaced; not part of the verified registry record.
Maritime Robotics raises EUR 28M for autonomous sea drones
Maritime Robotics raised EUR 28M as autonomous sea drones move into global large-scale adoption.
Maritime Robotics raises EUR28 million as autonomous sea drones move into global large-scale adoption
Maritime Robotics raises EUR28M led by MS+PARTNERS to scale autonomous sea drone manufacturing and global expansion.
Machine-readable surfaces
- Markdown mirror: /models/maritime-robotics-otter.md
- JSON-LD: embedded in this page’s head
- REST API: /v1/models/7b22e908-ee8d-450c-bac3-636bfb403201
- Revision history: /models/maritime-robotics-otter/history
- Data documentation: /data
- Query this programmatically: Deploy MCP
Reality vs attention
Otter (and Mariner X) draws attention at the 24th percentile but verifies reality at the 24th percentile among maritime_surface robots. Hype Gap +0.1, 14th widest among maritime_surface robots.
6-month trend
Analysis
Limited independent press and video coverage to date.
Signal flags
Dimension breakdown
Verified signal
Attention (reach, not merit)
DEPLOY Intelligence scores are computed from verified registry data: confirmed deployments, disclosed funding rounds, regulatory filings, active job listings, video viewership, and press coverage. Confidence ratings reflect data availability. Scores update nightly.
DEPLOY Indices — verified vs claimed
Last computed: Sep 2, 2026