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Canadian defence and dual-use directory
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Company
Dartmouth, Nova Scotia
See the Canadian systems behind submarine detection at sea. From its Dartmouth operation, Ultra Maritime develops and builds towed arrays in Canada and manufactures or integrates sonobuoys, hull-mounted sonar, containerized Sea Tracker systems, and lifecycle support for Royal Canadian Navy and allied undersea-warfare programs.
Last reviewed Sep 15, 2026
Decision snapshot
Ultra Maritime offers a Canadian sonar manufacturing connection in Dartmouth and a wider multinational undersea-sensing portfolio. Its Lanternfish report adds a specific Sea Spear and SSQ-125B demonstration to investigate. Canadian buyers and partners should establish the configuration, local workshare and acceptance evidence before treating that group demonstration as a Canadian-delivered operational capability.
See all reviewed connectionsMission area
The lifecycle scope helps bring the River-class underwater-warfare sensors and defensive systems through integration, trials and acceptance into sustained fleet readiness.
Released Defence need
Sea Searcher Hull-Mounted Sonar & Transducers may help teams working on Sovereign defence capability areas by contributing to detection and situational awareness, autonomous and uncrewed systems, and cyber and digital operations.
Organization context
See the Canadian systems behind submarine detection at sea. From its Dartmouth operation, Ultra Maritime develops and builds towed arrays in Canada and manufactures or integrates sonobuoys, hull-mounted sonar, containerized Sea Tracker systems, and lifecycle support for Royal Canadian Navy and allied undersea-warfare programs. Its published capability portfolio includes Sea Tracker Containerized ASW System, Sea Lancer Towed Sonar Arrays, Sea Searcher Hull-Mounted Sonar & Transducers.
ACOA describes Ultra Maritime's Dartmouth, Nova Scotia engineering and manufacturing base, including Canadian-developed towed-array and sonobuoy work. It identifies Halifax-class underwater-warfare upgrades and initial River-class sonar/anti-torpedo contracts. This Canadian delivery evidence does not establish that every product in Ultra Maritime's international portfolio is made in Canada.
Recent activity
Dated Aug 13, 2026
Ultra Maritime reported on August 13, 2026 that its Sea Spear passive sonar and SSQ-125B active sonobuoy were demonstrated together during U.S. Navy Lanternfish 2026 for unmanned-underwater-vehicle detection and localization. This remains a manufacturer-reported exercise result, with no Canadian order or operational acceptance established by the announcement.
Source: Ultra Maritime reports integrated active-passive Lanternfish demonstration (opens in a new tab)Reviewed assessment
Follow the reviewed Mission area and Defence need connections to understand the problem this organization may help address, the public evidence behind the assessment, and what to verify before engagement.
Contributing capability
River-Class Undersea-Warfare Lifecycle Support
The lifecycle scope helps bring the River-class underwater-warfare sensors and defensive systems through integration, trials and acceptance into sustained fleet readiness.
Evidence strength: ModerateCapability last reviewed Jul 20, 2026
Open Mission areaContributing capability
Sea Lancer Towed Sonar Arrays
Contributing capability
Sea Searcher Hull-Mounted Sonar & Transducers
Sea Searcher Hull-Mounted Sonar & Transducers may help teams working on Sovereign defence capability areas by contributing to detection and situational awareness, autonomous and uncrewed systems, and cyber and digital operations.
Evidence strength: ModerateCapability last reviewed Jul 20, 2026
Open Defence needReviewed connections indicate possible relevance based on public evidence. They do not indicate procurement direction, eligibility, endorsement or customer interest.
A closer look at the products, services, operating features, and documented applications that shape the organization’s role.
Naval undersea-warfare integration and lifecycle support
What it enables
Carry complex sonar and torpedo-defence systems from the yard into operational service. Ultra Maritime's River-class scope covers engineering support, spares, shore installation, sea trials, final acceptance and readiness activity for the Royal Canadian Navy's new surface-combatant fleet.
Public record
Dated participation, delivery roles, partnerships, and disclosed funding provide the operating context behind the profile.
At-sea testing collaboration
COVE is collaborating with Ultra Maritime Canada, DRDC and ACOA on the containerized at-sea towed-array testing initiative in Dartmouth.
Project support and ecosystem development
Atlantic Canada Opportunities Agency
ACOA has provided project support and advocacy for Ultra Maritime's Canadian defence and marine work and is identified as a supporter of the Sea Tracker initiative.
River-class systems and lifecycle contracting
Lockheed Martin Canada
Lockheed Martin Canada has awarded Ultra Maritime Canadian Surface Combatant and River-class work covering hull-mounted sonar production and undersea-warfare lifecycle support.
Sea Tracker experimentation partner
Prepare the conversation
Which Sea Tracker Containerized ASW System configurations are commercially available now, what integration or qualification work is required, and which public customer or deployment evidence can be shared?
Ultra Maritime's public evidence establishes its current role and offering, but it does not answer every access, configuration, eligibility, maturity or buyer question needed for a first business-development conversation.
Geography
The map is centred on Dartmouth. It does not imply a street address or exact facility location.
Open in the ecosystem mapSource library
Open the original record, then expand the source details to see which parts of the dossier it informs.
Public sources cited · Facts and assessments kept separate · Human review
Public sources
12
Last reviewed
Sep 15, 2026
Ultra Maritime · Aug 13, 2026
Move into a better-informed conversation
Save the organization and its public record in a private Shortlist, then request a human-routed introduction when the fit is specific enough to discuss.
Sea Lancer's detection, localization and classification functions give operators the acoustic coverage needed to find and understand submarine and torpedo activity across wider areas.
Evidence strength: HighCapability last reviewed Jul 20, 2026
Contributing capability
Sea Revealer Sonobuoys
Deployable sonobuoys distribute acoustic sensors across a search area so teams can detect, localize and track submarine contacts beyond a single ship's organic sensor range.
Evidence strength: HighCapability last reviewed Jul 20, 2026
Open Mission areaContributing capability
Sea Searcher Hull-Mounted Sonar & Transducers
Hull-mounted sonar provides persistent shipboard detection, classification and tracking at the centre of an integrated underwater-warfare picture.
Evidence strength: HighCapability last reviewed Jul 20, 2026
Open Mission areaContributing capability
Sea Tracker Containerized ASW System
The system is designed for uncrewed and non-traditionally crewed platforms, creating a credible path to add persistent undersea sensing to autonomous maritime patrol concepts.
Evidence strength: ModerateCapability last reviewed Jul 20, 2026
Open Mission areaContributing capability
Sea Tracker Containerized ASW System
Sea Tracker combines rapidly deployable submarine detection with active and passive towed-array integration, making it a direct fit for underwater detection, classification, tracking and experimentation.
Evidence strength: HighCapability last reviewed Jul 20, 2026
Open Mission areaEvidence strength: HighLast reviewed Jul 20, 2026
Operating context
Decision-useful features
Documented applications. River-class Destroyer build and acceptance · Transition of undersea-warfare systems into operational service · Long-term fleet readiness and domestic support capacity
Active and passive towed-sonar family
What it enables
Extend detection beyond a ship's hull and build a clearer picture of the undersea environment. The Sea Lancer family combines active and passive towed-sonar options with an open modular architecture for detection, localization and classification across crewed and uncrewed surface or subsurface platforms.
Evidence strength: HighLast reviewed Jul 20, 2026
Operating context
Decision-useful features
Documented applications. Long-range submarine and torpedo-threat detection · Surface and subsurface platform situational awareness · Crewed, optionally crewed and uncrewed anti-submarine-warfare missions
Air- and ship-deployable acoustic sonobuoy family
What it enables
Move submarine detection beyond the ship and across a larger search area. Sea Revealer includes active, passive and environmental sonobuoy variants for deployment from aircraft or ships, with Canadian-specification products and emerging integration paths for uncrewed aircraft.
Evidence strength: HighLast reviewed Jul 20, 2026
Operating context
Decision-useful features
Documented applications. Distributed submarine detection and tracking · Airborne and shipborne acoustic search patterns · Environmental measurement supporting anti-submarine-warfare operations
Digital hull-mounted sonar and acoustic transducers
What it enables
Give a ship a continuous inner layer of underwater awareness. Sea Searcher combines digital hull-mounted sonar with acoustic-transducer engineering to support navigation, early threat detection, target identification and tracking for surface-combatant and submarine missions.
Evidence strength: HighLast reviewed Jul 20, 2026
Operating context
Decision-useful features
Documented applications. Close-range submarine detection and tracking · Ship navigation and underwater situational awareness · Inner-layer anti-submarine warfare and torpedo defence
Deployable passive-sonar system
What it enables
Sea Spear is Ultra Maritime's deployable passive-sonar system. The manufacturer reports demonstrating it with an SSQ-125B active sonobuoy during Lanternfish 2026 for underwater-vehicle detection and localization; product-level Canadian workshare and operational acceptance remain unconfirmed.
Evidence strength: ModerateLast reviewed Sep 15, 2026
Operating context
Maturity
Manufacturer-reported Lanternfish 2026 demonstration; no operational acceptance is established.
Decision-useful features
Documented applications. Underwater-vehicle detection · Maritime infrastructure surveillance
Containerized submarine detection and towed-sonar integration system
What it enables
Put frigate-grade submarine detection onto a wider range of ships and uncrewed platforms. Sea Tracker packages a scalable towed-sonar architecture in a standard 20-foot ISO container, giving operators a rapidly deployable way to integrate active, passive, surveillance and torpedo-defence arrays for experimentation or operational concepts.
Evidence strength: HighLast reviewed Jul 20, 2026
Operating context
Decision-useful features
Documented applications. At-sea evaluation of next-generation towed arrays · Rapid deployment of submarine detection onto available vessels · DRDC experimentation and development of future anti-submarine-warfare concepts
Defence Research and Development Canada
Ultra Maritime is providing Sea Tracker to DRDC for experimentation and development of next-generation anti-submarine-warfare concepts.
Source type. official company news
Supports. Profile · executive relevance summary · Profile · current activity · Profile · current activity as of · Sea Spear deployable sonar · core features · Sea Spear deployable sonar · technology readiness level · Sea Spear deployable sonar · name · Sea Spear deployable sonar · technical tags · Sea Spear deployable sonar · capability type · Sea Spear deployable sonar · technicaldomainslugs · Sea Spear deployable sonar · slug · Sea Spear deployable sonar · summary · Sea Spear deployable sonar · commercial availability · Sea Spear deployable sonar · defence applications · Sea Spear deployable sonar · maturity
Ultra Maritime reported on August 13, 2026 that Sea Spear deployable passive sonar and its SSQ-125B active sonobuoy were demonstrated together during U.S. Navy Lanternfish 2026 to detect and localize unmanned underwater vehicles. This is a manufacturer-reported exercise demonstration; the page does not establish a Canadian procurement, sole Canadian manufacture, contract value or operational acceptance.
Ultra Maritime · Dec 3, 2025
Source type. official company news
Supports. Profile · operating context · Profile · profileData.evidencePosture · Profile · reviewed questions.ultra-maritime-first-conversation.question · Profile · reviewed questions.ultra-maritime-first-conversation.context · Sea Tracker Containerized ASW System · summary · Sea Tracker Containerized ASW System → Autonomous Patrol and Monitoring · Sea Tracker experimentation partner relationship
Ultra states that it is providing Sea Tracker to Defence Research and Development Canada for experimentation and development of next-generation anti-submarine-warfare concepts.
Atlantic Canada Opportunities Agency · Aug 12, 2025
Source type. official report
Supports. Profile · profileData.canadianOperations · Profile · executive relevance summary · Profile · description · Profile · canadian footprint · Profile · operating context · Sea Revealer Sonobuoys → Underwater ISR · Project support and ecosystem development relationship
The government profile calls Dartmouth a towed-array centre of excellence, states that the arrays are developed and built in Canada, and identifies sonobuoy, hull-sonar and towed-array work at the site.
Ultra Maritime
Source type. official company product
Supports. Profile · operating context · Sea Lancer Towed Sonar Arrays · summary · Sea Lancer Towed Sonar Arrays → Underwater ISR
Ultra's product page describes Sea Lancer as an open and modular family of towed sonar systems for detection, localization and classification across surface, subsurface, crewed and uncrewed platforms.
Ultra Maritime
Source type. official organization profile
Supports. Profile · editorial profile version · Profile · profileData.publicContact.publicPhone · Profile · profileData.publicContact · Profile · profileData.publicContact.contactPageUrl
Ultra Maritime has sufficient mapped public evidence for private reviewer consideration of the shared editorial profile template.
Ultra Maritime · May 27, 2026
Source type. official company news
Supports. Profile · defence posture · River-Class Undersea-Warfare Lifecycle Support · summary · River-Class Undersea-Warfare Lifecycle Support → Underwater ISR
Ultra Maritime is a direct naval-defence supplier with Canadian undersea-warfare development, production, integration, and lifecycle-support work, including company-reported River-class sonar and torpedo-defence contracts led from Dartmouth.
Ultra Maritime
Source type. official company product
Supports. Sea Revealer Sonobuoys · summary
Ultra lists Sea Revealer sonobuoys for submarine detection and tracking, identifies Canadian-specification variants, and describes integration work for uncrewed aerial vehicles.
Ultra Maritime
Source type. official company product
Supports. Sea Searcher Hull-Mounted Sonar & Transducers · summary · Sea Searcher Hull-Mounted Sonar & Transducers → Sovereign defence capability areas
Ultra documents the Sea Searcher family as fully digital hull-mounted sonar and acoustic transducer technology for navigation, early threat detection, target identification and tracking.
Ultra Maritime · Oct 4, 2022
Source type. official company news
Supports. River-class systems and lifecycle contracting relationship
Ultra reports a Canadian Surface Combatant hull-mounted-sonar production order from Lockheed Martin Canada and identifies itself as the program's anti-submarine-warfare lead.
Royal Canadian Navy · Oct 1, 2021
Source type. official report
Supports. Sea Searcher Hull-Mounted Sonar & Transducers → Underwater ISR
The Royal Canadian Navy lists Ultra hull-mounted and towed sonar within the ship's integrated underwater-warfare system, supporting direct relevance to Underwater ISR.
Department of National Defence · Mar 1, 2026
Source type. official policy
Supports. Sea Searcher Hull-Mounted Sonar & Transducers → Sovereign defence capability areas
Canada needs secure strategic autonomy and reliable access to capabilities that are critical to defending its sovereignty and meeting allied commitments, while reducing exposure to foreign supply-chain and intellectual-property dependencies.
COVE · Dec 4, 2025
Source type. official company news
Supports. Sea Tracker Containerized ASW System → Underwater ISR · At-sea testing collaboration relationship
Because COVE describes a containerized system for at-sea evaluation of active and passive towed arrays and DRDC experimentation on future ASW concepts, the capability is a direct fit for the public Underwater ISR mission area.
Only official, source-supported contact paths are shown. True North Map does not expose private contact information or imply endorsement.
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