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Ultra Maritime Leads the Future of Unmanned Anti-Submarine Warfare Solutions from the Air, Surface and Undersea

The demand for anti-submarine warfare (ASW) has never been greater. Threat submarines proliferate and grow quieter. And international waters grow more contested.

Tackling the modern anti-submarine warfare problem requires many modalities of sensing and communication. Successful solutions must unite existing and next-generation capabilities while leveraging both manned and unmanned platforms rapidly and at scale. A distributed network across a hybrid fleet is essential to achieving maritime dominance while reducing the risk to expensive manned platforms, particularly in contested waters.  

As the leader in ASW innovation for global allied navies, Ultra Maritime recognizes the many challenges modern submarine threats pose and has invested in state-of-the-art technologies that make ASW possible across a hybrid fleet.

From the Air: Through a strategic partnership, Ultra Maritime has paired its new miniaturized receivers and half size sonobuoys, including multi-static active capabilities, with a specially adapted unmanned aerial system, allowing for double the search area and higher probability of detection.

From the Surface: The internally designed Ultra Maritime Mission Pod is a self-contained towed-array-in-a-box that provides modular capability to manned and unmanned surface ships. When deployed with a decoy array as part of a layered torpedo defense system, it can be integrated within a broader network of Ultra Maritime’s shipboard sensors, decoys and countermeasures for complete undersea situational awareness.

From Undersea: Ultra Maritime has developed Sea Spear, an entirely new ASW modality. Sea Spear is a fixed, clandestinely deployable, long endurance and attritable sonar array. Via a strategic partnership, Sea Spear deploys from unmanned underwater vehicles providing towed array-like sensitivity and detection using AI-enabled processing at the tactical edge.

At Ultra Maritime, we blend innovation and proven expertise to deliver the ASW solutions required for today’s threats and tomorrow’s advantage. What was once theoretical is now possible – Ultra Maritime is redefining the future of anti-submarine warfare.

Ultra Maritime and General Atomics Announce Strategic Partnership to Revolutionize Unmanned Airborne Anti-Submarine Warfare

COLUMBIA CITY, Indiana – General Atomics Aeronautical Systems, Inc. (GA-ASI) and Ultra Maritime are proud to announce a strategic partnership to substantially advance the state of the art in unmanned airborne detection and tracking of enemy submarines. By combining the world’s most advanced and prolific unmanned aerial system (UAS), GA-ASI’s MQ-9B SeaGuardian®, with the world’s only miniaturized, low power sonobuoys and receivers, the strategic partnership will make it possible for the U.S. and its allies to use sophisticated techniques to track submarines in hostile, GPS-denied environments.

As adversary submarines proliferate and become stealthier, unmanned underwater vehicles grow in number and GPS jamming becomes more prevalent, the need for assured and affordable anti-submarine warfare (ASW) solutions is more critical than ever. While unmanned technologies are the clear best solution to this challenge, limitations to date in suitable ASW technologies have prevented real world solutions from emerging. This strategic partnership will provide a significant new capability where small form factor sonobuoys and receivers, aboard a long-range unmanned aircraft, can provide autonomous, low cost ASW in a GPS-denied environment.

The GA-ASI MQ-9B SeaGuardian provides unmatched multi-domain intelligence, surveillance, reconnaissance and targeting (ISR&T). GA-ASI will integrate the MQ-9B SeaGuardian with Ultra Maritime’s exclusive small form factor (half size) sonobuoys to double UAS capacity. These sonobuoys will provide Multi-static Active (MSA) capabilities achieving unprecedented wide-area search. Furthermore, Ultra Maritime’s new acoustic receivers will be half the traditional size, making them ideal for UAS deployment. The receivers will enable more effective ASW in GPS-denied environments and will monitor more sonobuoys per MQ-9B mission through advanced communications technology. The solution is fully funded by internal research and development, and an integrated operational demonstration of this capability will occur in the Indo Pacific and other theaters beginning in 2025.

Ultra Maritime Showcases Artificial Intelligence (AI) for Improved Anti-Submarine Warfare Mission Effectiveness at the Combined Naval Event 2025

With the increase in submarine stealthiness and quantity of unmanned platforms, the anti-submarine warfare (ASW) mission is more important than ever to maintain maritime dominance. At the Combined Naval Event in Farnborough, UK, next week, Ultra Maritime will present its unique technology using Artificial Intelligence (AI) as more than just a passive classifier, but rather used at every stage of the ASW command chain including detection, localization, tracking and automated tactical decision making. Not only can this increase the effectiveness of manned vessels, but can significantly increase the level of autonomy of unmanned vehicles.  

Along with a presentation on this leading AI use, Ultra Maritime will showcase the following at its booth #D36:

Sea Spear – New Lightweight Deployable Sonar
Introduced to the world at Sea Air Space 2025 and being used in partnership with Anduril’s Seabed Sentry to communicate critical subsea information in real time, Ultra Maritime will highlight Sea Spear, a first-of-its-kind lightweight deployable sonar system that enhances submarine detection capabilities rapidly and inexpensively. Sea Spear provides a solution for long endurance and long-range surveillance capability and threat monitoring during a time when anti-submarine warfare matters more than ever. Deployable from manned or unmanned surface and underwater platforms, the 21-inch diameter unit expands to create a high-performance, wide-aperture array. Already well into its development phase and in-water testing, full operational demonstration will occur in 2025.

Next Generation Sonobuoys
Ultra Maritime is delivering a new generation of sonobuoys, making significant investments that have fully qualified three new sonobuoy models with two additional qualifications in 2025, and towards creating the factory of the future configured specifically for sonobuoys and made to achieve reliable delivery at the production rate demands of the global market. The new buoys will revolutionize submarine detection technology with unprecedented predictability and detection capabilities, including enhanced battery technology that extends the operational lifespan of active buoys. This breakthrough provides allied navies with a critical edge in undersea warfare, elevating defense operations to a new level of performance.

Ultra Maritime Mission Pod – Containerized Anti-Submarine Warfare (ASW)
The Ultra Maritime Mission Pod is an extensive advancement in towed array packaging technology that enables smaller manned and unmanned surface vessels to greatly increase their anti-submarine warfare capabilities. This game-changing system houses and deploys towed arrays from a 20-foot ISO container, achieving a genuine modular, flexible and scalable solution for any Navy. The Ultra Maritime Mission Pod allows for ASW capabilities without the need for traditional, large, expensive manned surface combatant platforms.

Surface Ship Torpedo Defense
Ultra Maritime has made significant investment towards creating a complete layered torpedo defense solution comprised of multiple strategies and systems working together to detect and neutralize incoming torpedo threats. This next generation torpedo defense capability combines expendable countermeasures, both soft and hard kill, with towed detection and countermeasures, ensuring the safety of naval vessels from torpedo attacks. This integrated approach to torpedo defense is critical to address the growing submarine threat by significantly improving our survivability and drastically shortening the kill chain for an inbound threat.

WHEN: May 20-22, 2025

WHERE: Booth #D36, Farnborough International Exhibition & Conference Centre

Ultra Maritime Collaborates with the Universities of Glasgow and Strathclyde to Evaluate Next Generation Materials for Underwater Sensing

London, U.K. – Ultra Maritime is pleased to announce a collaboration with the Universities of Glasgow and Strathclyde though the Engineering and Physical Sciences Research Council (EPSRC) Centre for Doctoral Training in Future Ultrasonic Engineering (FUSE CDT), a UK Research and Innovation program. The research focuses on the evaluation of novel ceramic materials, targeted at Anti-Submarine Warfare (ASW) and Torpedo Defense applications. These materials will enable an increase in source levels for active sonars as well as an increase in sensitivity for passive sonars, both of which are critical in developing the next generation of ASW solutions.

 “We are very excited to announce our relationship with FUSE and looking forward to rapidly transitioning this exciting research into Ultra Maritime’s portfolio of ASW and Torpedo Defense systems,” said Andrew Anderson, Ultra Maritime Chief Technology Officer. “This is a great example of where Ultra Maritime is investing in fundamental research to advance UK defence industrial capability.”

Professor Sandy Cochran, of the University of Glasgow, is co-director of FUSE CDT. He said, “It’s great to be working with Ultra Maritime through our world-leading FUSE CDT. The technical excellence of Ultra Maritime matches our own and the materials on which we’re working together will undoubtedly be extremely important for ASW and Torpedo Defense in an increasingly uncertain global environment.”

Ultra Maritime is committed to providing world-leading undersea warfare solutions for today’s missions while developing tomorrow’s technological advances. Ultra Maritime is proud to maintain the highest levels of investment in future ASW technology, and this collaboration is another step in maritime domain advantage for allied navies.  

French Navy Atlantique 2 Maritime Patrol Aircraft

Ultra Maritime to Enhance ASW capabilities of Marine Nationale in France

COLUMBIA CITY, Ind. – Ultra Maritime continues to expand its growing list of customers for the next generation of sonobuoy technologies, and is proud to announce a significant multi-product award from Thales Group in support of Direction Générale de l’Armement (DGA), the French Government’s defense procurement and technology agency. DGA will be procuring both active and passive sonobuoys, including some of the latest technologies from Ultra Maritime’s new U.S. production lines, that together will provide significant anti-submarine warfare (ASW) capabilities.

As undersea domain awareness becomes increasingly critical, and submarine and uncrewed threats more and more stealthy, enhancements in sonobuoy performance make the difference between detecting an undersea threat and missing it. Following several years of development and recapitalization, Ultra Maritime now offers multiple fully qualified, volume production sonobuoys manufactured in plants in the U.S., Canada and UK, that together address the world’s most demanding ASW needs. Ultra Maritime, through Thales, will provide the Marine nationale with an enhanced ASW capability and an increased probability of detection of undersea threats.

Ultra Maritime will be supplying newly designed and qualified U.S.-built AN/SSQ 62E DICASS and AN/SSQ 53G DIFAR sonobuoys. These sonobuoys offer significant performance improvements and are equipped with cutting-edge battery technology which nearly doubles the operational life of the active sonobuoys and augments their acoustic output, while providing precise detection, localization and classification, ensuring reliability of outcomes in critical defense operations. Ultra Maritime will also supply G-size AN/SSQ 536G Bathythermal buoys from its Canadian site in Dartmouth, Nova Scotia. G-size sonobuoys deliver advanced sonobuoy technology in a more compact form, ideal for rotary wing and Unmanned Air Vehicle (UAV) operations where minimizing payload dimensions and mass are important factors.

Anduril and Ultra Maritime Announce Exclusive Partnership on Groundbreaking Autonomous Ocean Sensing Capability

BRAINTREE, Massachusetts – Anduril Industries and Ultra Maritime are proud to announce an exclusive partnership to develop a significant new capability in next generation unmanned subsea sensing, making it possible for U.S. and allied nations to enhance their submarine detection capabilities rapidly and inexpensively. By bringing together Ultra Maritime’s innovative Sea Spear deployable acoustic arrays and AI enabled acoustic processing with Anduril’s undersea autonomy capabilities, including Dive XL and Seabed Sentry, plus Anduril’s Lattice communications framework, the partnership will provide a major advance in distributed, low-cost undersea surveillance.

As enemy submarines grow quieter and greater in number, the need for low-cost solutions to submarine detection grows. Autonomous systems provide a clear path to low-cost, low-risk anti-submarine warfare (ASW) capability, but have to date been hampered by inadequate technology. Issues of range, endurance, sensitivity, communication, scale and more have limited advances in autonomous or uncrewed ASW. Anduril and Ultra Maritime have developed an innovative approach to make autonomous undersea ASW possible.

The concept uses Anduril’s Dive XL to autonomously deliver and deploy Anduril’s Seabed Sentry modular undersea payload system, which in turn hosts Ultra Maritime’s Sea Spear lightweight sensing array as a payload. Once deployed, Sea Spear pushes Sonar processing to the tactical edge using modern AI techniques. The system then uses acoustic communications and Anduril’s Lattice framework to provide users real time, autonomous submarine sensing. Multiple systems can be deployed in a distributed manner, enabling a user to see detects distributed across large ocean areas. The joint effort is well underway and achieves end to end in-water testing in 2025.

Ultra Maritime Features First-of-its-Kind Lightweight Deployable Sonar Capability at Sea Air Space 2025

As submarine and autonomous threats increase and become more stealthy, undersea domain awareness is becoming more critical than ever. Ultra Maritime will present a new, unique and innovative solution for these undersea threats in the form of a lightweight deployable sonar capability called Sea Spear at Sea Air Space 2025 next week in National Harbor, Maryland.

Including this exciting new technology, Ultra Maritime will highlight the following at its booth #1111:

Sea Spear – New Lightweight Deployable Sonar
Ultra Maritime unveils Sea Spear, a first-of-its-kind lightweight deployable sonar system that enhances submarine detection capabilities rapidly and inexpensively. As the maritime domain shifts, submarines become more stealthy and unmanned underwater vehicles grow in number, Sea Spear provides a solution for long endurance and long-range surveillance capability and threat monitoring. Deployable from crewed or uncrewed surface and underwater platforms, the 21-inch diameter unit expands to create a high-performance, wide-aperture array. Already well into its development phase and in-water testing, full operational demonstration will occur in 2025. As part of an exclusive partnership, Ultra Maritime’s Sea Spear will be deployed with Anduril’s Seabed Sentry, a network of ‘cable-less’ deep-sea nodes that sense, process and communicate critical subsea information in real time.

Next Generation Sonobuoys
Ultra Maritime is delivering a new generation of sonobuoys, revolutionizing submarine detection technology with unprecedented predictability and detection capabilities. These redesigned and independently manufactured systems incorporate significant advancements, including enhanced battery technology that extends the operational lifespan of active buoys. This breakthrough provides allied navies with a critical edge in undersea warfare, elevating defense operations to a new level of performance. Ultra Maritime has made significant investments that have fully qualified three new sonobuoy models with two additional qualifications in 2025, and towards creating the factory of the future configured specifically for sonobuoys and made to achieve reliable delivery at the production rate demands of the global market.

Ultra Maritime Mission Pod – Containerized Anti-Submarine Warfare (ASW)
The Ultra Maritime Mission Pod is an extensive advancement in towed array packaging technology that enables smaller manned and unmanned surface vessels to greatly increase their anti-submarine warfare capabilities. This game-changing system houses and deploys towed arrays from a 20-foot ISO container, achieving a genuine modular, flexible and scalable solution for any Navy. The Ultra Maritime Mission Pod allows for ASW capabilities without the need for traditional, large, expensive manned surface combatant platforms.

Surface Ship Torpedo Defense
Ultra Maritime has made significant investment towards creating a complete layered torpedo defense solution comprised of multiple strategies and systems working together to detect and neutralize incoming torpedo threats. This next generation torpedo defense capability combines expendable countermeasures, both soft and hard kill, with towed detection and countermeasures, ensuring the safety of naval vessels from torpedo attacks. This integrated approach to torpedo defense is critical to address the growing submarine threat by significantly improving our survivability and drastically shortening the kill chain for an inbound threat.

Next Generation Surface Search Radar
Next Generation Surface Search Radar (NGSSR) is the Navy’s first multi-mission navigation radar that enhances warfighting capabilities and safety of navigation. This radar can be reconfigured through software updates and is designed to support combat systems, surface search, safety of navigation, periscope detection and other missions. Ultra Maritime will highlight a small form factor solution built upon NGSSR, for use on small and unmanned platforms, giving the ability to share data across both manned and unmanned networks and providing a common operating picture while performing surface search and other classified mission capabilities.

Ultra Maritime Awarded Subcontract for MK 48 MOD 7 Guidance and Control Heavyweight Torpedo Program

BRAINTREE, Massachusetts — Ultra Maritime received a contract to provide the Acoustic Nose Array (ANA) for the MK 48 MOD 7 Guidance and Control section of the heavyweight torpedo in December 2024 from Lockheed Martin in support of their $245 million award for production, spares, production support material, engineering support and hardware repair of components for the MK 48 Guidance and Control Mod 7 program.

Under the terms of the contract, Ultra Maritime is manufacturing fully assembled Nose Array’s based out of its Braintree, Massachusetts, facility. These Nose Arrays incorporate a sonar array that is used to acquire targets and generate the target position data required for engagement.

“Through our ongoing partnership with Lockheed Martin, we are committed to supporting the U.S. Navy and allied nations in their mission to maintain maritime superiority,” said Robert Van Dyke, Vice President and General Manager of Ultra Maritime Seaborne Sensors and Systems.

Ultra Maritime also currently manufactures similar sections for the MK 54 MOD 0 Lightweight and MK 58 Compact Rapid Attack Weapon (CRAW) torpedoes. With decades of experience fabricating, assembling and delivering array assemblies, Ultra Maritime has positioned itself as a trusted transducer manufacturing partner in delivering this critical anti-submarine warfare (ASW) capability to the fleet.

Ultra Maritime Passes Preliminary Design Review for Next Generation Multistatic Active Receive Sonobuoy

London, UK – Ultra Maritime has successfully completed the Preliminary Design Review for the Multistatic Active Receive Sonobuoy (MSARS) as part of a UK Defence Science and Technology Laboratory (Dstl) funded research and development program. MSARS is a next generation small form factor G-Size sonobuoy which will significantly improve the multistatic detection and localization performance compared to current multistatic sonobuoy technologies.

MSARS has been specifically designed to operate from Rotary Wing and Fixed Wing Uncrewed Air Systems (UAS), as well as from crewed platforms. It includes a patented interface technology to allow the platform’s mission system to directly program sonobuoys prior to launch.

This work is aligned to the Royal Navy’s Proteus UAS program and supports the Royal Navy’s Maritime Aviation Transformation strategy, which includes sonobuoy dispensing and data relay capabilities for Tier 1-2 UAS.

“Navies around the world are increasingly evaluating and adopting uncrewed air, surface and underwater platforms to conduct anti-submarine warfare (ASW) to assist their existing crewed platforms. Ultra Maritime is focused on developing and deploying world-leading ASW payloads for all these platform types. The MSARS development is an important part of the airborne element, alongside our significant internal investments in sonobuoy receivers, networking of ASW sensors and AI-assisted processing / tactical decision making,” said Andrew Anderson, Ultra Maritime Chief Technology Officer.

Ultra Maritime Highlights Airborne Capabilities at the Avalon Australian International Airshow

ADELAIDE, South Australia – The Avalon Australian International Airshow will provide the perfect backdrop for Ultra Maritime to showcase emerging and existing airborne Anti-Submarine Warfare (ASW) and Electronic Warfare capabilities. Stop by the South Australia Defence Stand in Hall 3 at booth 3M25 to learn more about the following:

Next Generation Sonobuoys
Ultra Maritime’s next generation SSQ-53 and SSQ-62 sonobuoys are fully qualified per U.S. Navy standards and are currently used by allied navies globally. These new buoys are in production and Ultra Maritime is currently accepting orders for rapid delivery. With updated underlying technology and an improved supply chain, the company is positioned to provide sonobuoys at a production rate that meets the increasing global demand. While offering a full range of sonobuoys, Ultra Maritime is also the only manufacturer of G size sonobuoys (half-size) used internationally, as well as sonobuoy receivers.  

Electronic Warfare
Avalon 2025 will also provide an opportunity for Ultra Maritime to showcase its Electronic Warfare (EW) Systems which are in service in the Royal Australian Navy (RAN) and Royal Australia Airforce (RAAF). These capabilities enable informed critical decision-making in the ever evolving and increasingly complex electromagnetic threat landscape.

Unmanned System Payloads
Ultra Maritime continues to invest in next-generation Electronic Warfare capability based upon the proven and in-service digital receiver systems and has scaled this capability for use on small, unmanned platforms. This provides an ability to share data across both manned and unmanned networks while providing search, collection and other classified mission capabilities.

“Ultra Maritime is committed to supplying the very best sonobuoy capability to deliver world-class undersea warfare solutions,” said Mark Potter, Vice President and General Manager of Ultra Maritime Australia. “Our expertise in sonar, radar and electronic warfare, and torpedo defense will provide best-in-class capabilities within the maritime domain and position the business well to support the AUKUS pillars.”