10 Leading U.S. Autonomous Ships Companies Transforming Maritime Defense

The idea of ships navigating oceans without a full human crew no longer only belongs to science fiction. In the U.S., autonomous ships and unmanned surface vessels are steadily moving from experimental trials into real-world deployment. It is further driven largely by dense needs, AI, advanced sensor technologies, and next-generation propulsion systems. For centuries, ships have relied on human navigation to cross oceans and protect sea routes, but as of today, that tradition is being reshaped through automation technologies.

Fortune Business Insights states that the market for U.S. autonomous ships is growing at a CAGR of 9.13% driven by new generation technologies in ships with their ability to think, adapt, and operate independently. Further, the market is estimated to reach a valuation of USD 5,982.1 million by 2034 from a valuation of USD 2,265.8 million as of 2025.

Fortune Business Insights Enlists 10 Top U.S. Autonomous Ships Companies Globally

1. Leidos: Turning Data and AI into Maritime Intelligence

Leidos, founded in 1969, has quietly become one of the most influential players in the market. This company is renowned for its primary role in one of the U.S. Navy programs named Sea Hunter as it designed it with an autonomous, unmanned surface vessel in order to operate for months without any human intervention. It holds expertise in sensor fusion, autonomy software, and secure command-and-control systems. In terms of autonomous ships, this mostly means enabling vessels in order to interpret radar, sonar, and satellite data in real time, further making navigation safer and independent. Instead of building hulls, this company designs ‘brains’ for these autonomous ships which makes it indispensable in the U.S. defense-driven autonomous maritime ecosystem. 

In October 2024, the company received a follow-on contract from the Naval Information Warfare Center Pacific to support unmanned and automated systems for maritime intelligence, surveillance, and reconnaissance (ISR). The task order is valued at about USD 248 million and will run for five years.

2. Austal: Building the Platforms of Tomorrow

This Australian company is one of the leading U.S. autonomous ships companies established in 1988. Austal is a major supplier when it comes to the U.S. Navy and is also renowned for designing Littoral Combat Ships (LCS) as well as expeditionary fast transports. As the demand for autonomous ships increased in the U.S., the company through its shipbuilding expertise introduced vessels that support unmanned or optionally crewed operations. It implements modular designs in the ships that make them easier to integrate autonomous navigation systems, remote-control capabilities, and sensors. This further helps to bridge the gap between traditional naval vessels and future autonomous fleets.

In August 2022, Austral U.S. and Saildrone, Inc. formed a strategic partnership for developing advanced autonomous uncrewed surface vehicles. This collaboration combines the technology of Saildrone and manufacturing expertise of Austral in order to support maritime surveillance and survey missions.

3. BAE Systems PLC: Autonomy for Naval Superiority

Founded in 1999, this company operates extensively in the U.S. defense market through BAE Systems Inc. It plays a key role in autonomous maritime development by delivering electronic warfare solutions, advanced combat systems, and mission control software. The technologies designed by the company are used in autonomous and semi-autonomous naval platforms. Such technologies help in surveillance, decision support, and threat detection, further making BAE Systems one of the major players in the market. The autonomous ships industry in the U.S. gathers strength by enabling vessels in order to operate safely in contested as well as high-risk maritime environments.

In September 2025, a 10-year exclusive agreement was signed by BAE Systems and Cellula Robotics in order to jointly develop the autonomous submarine Herne for military usage. Moreover, the companies aim to launch market-ready vessels by 2026.

4. Elbit Systems Ltd.: Precision Sensors for Autonomous Navigation

This company, headquartered in Israel, has a strong presence in the U.S. especially in Texas. Elbit Systems, founded in 1966, is renowned as a global leader in surveillance systems, electro-optics, and autonomous control technologies. However, fact suggests that autonomous ships depend heavily on sensors in order to “see” their surroundings. Therefore, the company manufactures radar, electro-optical payloads, and situational awareness systems, especially designed for supporting unmanned maritime platforms. This feature enables the ships for detecting obstacles, tracking targets, and operating effectively with minimal human involvement, further eliminating the risk of error.

In January 2021, the company secured a contract for supplying Seagull™ Unmanned Surface Vehicles (UAVs) to an Asia Pacific navy.

5. Lockheed Martin Corporation: Defense-Grade Maritime Autonomy

This company, founded in 1995, is one of the top U.S. autonomous ships companies. This American company carries a year-long history in autonomy experience from defense as well as aerospace into the maritime domain. Lockheed Martin is dedicated to designing autonomous naval technologies that includes unmanned surface and subsurface vessels. The company has an active involvement in implementing AI, secure communications, and mission systems which plays a primary role in the U.S. Navy autonomous fleet initiatives. When it comes to large-scale autonomous naval operations, its advanced technologies enable autonomous ships for coordinating with other vessels, command centers, and aircraft. 

In July 2025, an announcement was made by HavocAI and Lockheed Martin Ventures for forming a strategic partnership in order to speed up the development and deployment of medium Unmanned Surface Vehicles (mUSVs). Such a collaboration was entered into with an aim to strengthen autonomous maritime defense technologies.

6. GS Yuasa International Ltd.: Powering Autonomous Endurance

This Japan-based company is well-known in the industry for its advanced battery technologies. GS Yuasa is not directly involved in building ships, but its lithium-ion and energy storage systems are an essential part for autonomous ships mostly for electric as well as hybrid platforms. However, as autonomous vessels need long endurance and reliable power supply with minimal maintenance, this company comes in as a savior. Its battery solutions support long-hour missions, improved energy efficiency, and helps in silent operations, further serving as key factors for both military as well as future commercial autonomous ships.

In December 2021, Defense Advanced Research Projects Agency (DARPA) of the U.S. awarded Phase 2 contracts to industry teams for the Manta Ray program. Such an initiative was focused on developing long-endurance unmanned underwater vehicles capable of operating in oceans without human intervention.

7. Rolls-Royce plc: Propulsion Meets Intelligent Control and Luxury

Established in 1906, this company operates beyond aerospace and has a strong marine division which focuses on propulsion systems, smart ship control, and power management. Rolls-Royce, headquartered in the U.K., is one of the leading players in the U.S. marine market. The company functions in designing autonomous as well as remotely operated ships, further developing smart propulsion systems and digital bridge technologies. In the U.S. industry for autonomous ships, this company contributes dedicatedly in order to make vessels more efficient, predictable, and automation-ready from an engineering outlook.

In September 2021, a partnership was formed between Rolls-Royce and Sea Machines Robotics in order to develop smart ship and autonomous vessel control systems. The collaboration expands the mtu NautIQ automation portfolio with advanced remote as well as autonomous technologies.

8. Teledyne Technologies Inc. (Teledyne Marine Technologies): Seeing Above and Below the Surface

Teledyne Technologies, established in 1960, plays a major role in marine sensing through its Teledyne Marine segment. The company functions in designing systems with sonar, acoustic sensors, imaging systems, and marine instrumentation. Moreover, autonomous ships deeply rely on accurate environmental awareness, especially underwater. The technologies offered by the company help vessels in mapping the seabed, detect underwater obstacles, and support autonomous navigation in complex maritime environments. It further makes them a cornerstone of unmanned surface as well as subsea operations.

In September 2025, a long-term contract was secured by Teledyne Marine Technologies from the U.K. Ministry of Defense in order to support the annual REPMUS exercises. Furthermore, the project focuses on testing and developing maritime unmanned systems starting the same year.

9. Textron Systems Corporation: Unmanned Surface Vessel Expertise

This American company is well known for its Common Unmanned Surface Vehicle (CUSV) which is designed for mine countermeasures as well as naval missions. Textron Systems’ CUSVs represent a practical example of autonomous and remotely operated vessels which are already tested and deployed in real scenarios. The company’s experience shows how autonomous ships could handle dangerous missions, further reducing human crew risk while increasing operational efficiency.

In December 2024, the company entered into a contract worth around USD 106 million with the U.S. Navy for Mine Sweeping Payload Delivery Systems. The deal includes production, spare parts, and engineering support for mine countermeasure missions.

10. L3Harris Technologies, Inc.: The Digital Nervous System of Autonomous Ships

This company was formed in 2019 after the merger of L3 Technologies and Harris Corporation. L3Harris Technologies is one of the major players in the U.S. that holds its expertise in designing sensors, building communications, and integrating mission systems. However, it is evident that autonomous ships must stay connected, securely as well as reliably. Therefore, this company provides reliability to its customers by establishing communication links and control systems. It further allows autonomous vessels for operating independently while remaining connected to operators as well as command centers, even across vast ocean distances. 

In April 2025, a MoU was signed by the company between its SAMI-L3Harris joint venture and Zamil Shipyards in Saudi Arabia. The primary reason behind the partnership is to integrate autonomous technology into current and next-generation maritime vessels.

Key Players Sailing into the Autonomous Era

The leading U.S. autonomous ships have upgraded the industry with not just one innovation but by merging shipbuilding, sensors, AI, power systems, and defense-grade communications. These major players have collectively helped in reshaping the autonomous maritime future of the U.S. As defense agencies, technology providers, and commercial operators continue to invest in unmanned as well as autonomous vessels, the ocean is set to become smarter, safer, and more efficient. Due to the constant effort of these major players, the idea of autonomous ships is not just an experiment but it has become a chapter in the book of maritime evolution.