Skip to main content

HII is Awarded Option Year Contract for U.S. Navy Lionfish Unmanned Undersea Vehicle Production

Written by Customer Service on . Posted in Public Companies.

POCASSET, Mass., July 06, 2026 (GLOBE NEWSWIRE) — HII, a global leader in autonomous unmanned maritime systems, has been awarded an option year production contract for the U.S. Navy’s next-generation program of record, the Lionfish small unmanned undersea vehicle (SUUV). Lionfish is based on HII’s commercial REMUS 300 platform, originally developed as part of a rapid prototyping initiative in collaboration with the U.S. Navy and the Defense Innovation Unit (DIU).

Designed to address a broad range of undersea warfare missions, Lionfish supports mine countermeasures, intelligence, surveillance and reconnaissance (ISR), anti-submarine warfare, and electronic warfare operations.

This latest option year contract continues to build the momentum of the Lionfish program, which marked a major production milestone at the close of 2025 with the completion of the 42nd Lionfish vehicle at HII’s Pocasset facility. The five-year program could scale to as many as 200 vehicles, with a total contract value exceeding $347 million.

“The decision to exercise this option year production of the Lionfish program reflects the U.S. Navy’s confidence in the platform’s operational performance, reliability and adaptability,” said Duane Fotheringham, president of the Unmanned Systems group in HII’s Mission Technologies division. “Our team remains focused on delivering advanced autonomous systems that provide sailors and marines with critical undersea warfare capabilities in support of evolving mission requirements.”

Lionfish 02

An image accompanying this release is available at: https://www.hii.com/news/hii-is-awarded-option-year-contract-for-us-navy-lionfish-unmanned-undersea-vehicle-production/.

Following the selection of HII’s REMUS 300 platform for Lionfish, the program has been recognized as the U.S. Navy’s first successful transition from an Other Transaction Authority (OTA) prototype effort to full-scale production, demonstrating accelerated application of dual-use commercial technologies in support of operational U.S. Department of Defense capabilities. Lionfish is also the first and only cyber-compliant unmanned underwater vehicle currently in production for the U.S. Navy.

The REMUS 300 platform is a modular, open-architecture SUUV engineered for multi-mission adaptability. Its open-architecture design enables rapid payload integration and future technology upgrades, allowing operators to adapt the system to evolving mission needs while maintaining cost efficiency over the platform lifecycle.

The REMUS family of unmanned underwater vehicles has been field-proven across global naval operations. HII has delivered more than 700 REMUS vehicles to over 30 countries, including 14 NATO members. More than 90% of REMUS systems delivered during the past 25 years remain in active service today.

About HII

HII is America’s largest shipbuilder, delivering the world’s most powerful ships and all-domain mission technologies, including unmanned systems, to U.S. and allied defense customers. HII is the largest producer of unmanned underwater vehicles for the U.S. Navy and the world.

With a more than 140-year history of advancing U.S. national security, HII builds and integrates defense capabilities extending from the core fleet to C6ISR, AI/ML, EW and synthetic training. Headquartered in Virginia, HII’s workforce is 44,000 strong. For more information, visit:

Contact:

Greg McCarthy
(202) 264-7126
gregory.j.mccarthy@hii-co.com

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/5a5a9fec-c328-41b6-bd66-562063d1842d

Disclaimer & Cookie Notice

Welcome to GOLDEA services for Professionals

Before you continue, please confirm the following:

Professional advisers only

I am a professional adviser and would like to visit the GOLDEA CAPITAL for Professionals website.

Important Notice for Investors:

The services and products offered by Goldalea Capital Ltd. are intended exclusively for professional market participants as defined by applicable laws and regulations. This typically includes institutional investors, qualified investors, and high-net-worth individuals who have sufficient knowledge, experience, resources, and independence to assess the risks of trading on their own.

No Investment Advice:

The information, analyses, and market data provided are for general information purposes only and do not constitute individual investment advice. They should not be construed as a basis for investment decisions and do not take into account the specific investment objectives, financial situation, or individual needs of any recipient.

High Risks:

Trading in financial instruments is associated with significant risks and may result in the complete loss of the invested capital. Goldalea Capital Ltd. accepts no liability for losses incurred as a result of the use of the information provided or the execution of transactions.

Sole Responsibility:

The decision to invest or not to invest is solely the responsibility of the investor. Investors should obtain comprehensive information about the risks involved before making any investment decision and, if necessary, seek independent advice.

No Guarantees:

Goldalea Capital Ltd. makes no warranties or representations as to the accuracy, completeness, or timeliness of the information provided. Markets are subject to constant change, and past performance is not a reliable indicator of future results.

Regional Restrictions:

The services offered by Goldalea Capital Ltd. may not be available to all persons or in all countries. It is the responsibility of the investor to ensure that they are authorized to use the services offered.

Please note: This disclaimer is for general information purposes only and does not replace individual legal or tax advice.