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REMUS (100 / 300 / 620)

Huntington Ingalls Industries (NYSE: HII), America's largest military shipbuilder with more than 42,000 employees, makes the REMUS family of autonomous…

Track REMUS (100 / 300 / 620)
Manufacturer
Huntington Ingalls Industries
Form factor
underwater
Maturity
production
Lifecycle
active
Deployments
1
Website
hii.com ↗

Overview

Huntington Ingalls Industries (NYSE: HII), America's largest military shipbuilder with more than 42,000 employees, makes the REMUS family of autonomous undersea vehicles through its Mission Technologies division, the legacy-prime contrast to the new-defense maritime startups Saronic and Anduril. The REMUS line, whose lineage dates to 2001 from Hydroid and Woods Hole Oceanographic Institution heritage, came to HII through its $350 million acquisition of Hydroid that closed on March 26, 2020, bought from Norway's Kongsberg, and spans the REMUS 100, 300, 600, and the newer REMUS 620 introduced in 2022 with up to 110 hours of endurance and 275 nautical miles of range, used for mine countermeasures, hydrographic survey, intelligence, and electronic warfare. The registry records it at production, mature-fielded maturity, the highest in the maritime set, on the strength of an order for up to roughly 200 REMUS-class vehicles, a NOAA order for REMUS 620 units delivered in 2024, an international order, and, most significantly, operational fielding: in June 2025, in the Yellow Moray demonstration, HII conducted the first forward-deployed torpedo-tube launch and recovery of a REMUS 600 from the submarine USS Delaware across three fully autonomous sorties, followed by a new Defense Innovation Unit contract for a submarine Torpedo Tube Launch and Recovery system. Its autonomy is decades-mature and operationally demonstrated, the lowest claimed-versus-verified risk in the maritime set, while the TTLR contract value, the exact total REMUS 620 fleet delivered, and the full quantity delivered under the up-to-200 ceiling are not verified.

Verified vs. claimed

Maturity stage
production(Full-scale production deployment with repeat customers.)
Verified deployments
1 deployment on file
Sources on file
4 sources, view all

Key facts

Endurance

up to 110 hours (REMUS 620)

Range

275 nautical miles (REMUS 620)

Autonomy level

fully autonomous

Production target

up to roughly 200 REMUS-class vehicles

Acquisition cost

$350 million (Hydroid acquisition)

Specs

Notes

Verified (legacy-prime contrast): Huntington Ingalls Industries (NYSE: HII; America's largest military shipbuilder, ~42,000+ employees) makes the REMUS UUV family via its Mission Technologies division. Acquired via Hydroid Inc. ($350M, closed Mar 26 2020, bought from Norway's Kongsberg). The legacy-prime contrast to the new-defense maritime startups (Saronic/Anduril). maturity=production / mature-fielded (highest of the maritime set)., Verified contracts/fielding (strongest signals): Up to ~200 REMUS-class UUVs order (ceiling); REMUS 620 NOAA order (2 units, delivered 2024); REMUS 620 international order (unnamed Indo-Pacific, Mar 2024). OPERATIONAL FIELDING (strongest): Jun 2025 'Yellow Moray' - first forward-deployed torpedo-tube launch-and-recovery of a REMUS 600 from USS Delaware (SSN-791), 3 fully autonomous launch/recovery sorties (Navy + WHOI). New DIU contract for the submarine Torpedo Tube Launch and Recovery (TTLR) system., AI-substance: production-grade / proven: REMUS autonomy is decades-mature and operationally demonstrated (lowest claimed-vs-verified risk in the maritime set). Less 'AI-first' marketing, more demonstrated autonomous launch/recovery from a deployed submarine., Claimed but NOT verified: TTLR/DIU contract value (undisclosed); exact total REMUS 620 fleet delivered; the full quantity actually delivered under the 'up-to-200' ceiling (ceiling != delivered); REMUS 620 depth/dimensions (not in primary source).

Specs

REMUS family (REMUS 100/300/600/620): autonomous undersea vehicles for MCM, hydrographic survey, ISR, EW. REMUS 620 (introduced 2022): newer medium-class long-endurance UUV, up to 110 hr endurance, 275 nm range. Built by HII's Mission Technologies division (Unmanned Systems group). REMUS lineage dates to 2001 (Hydroid/WHOI heritage).

Form Factor

maritime (autonomous SUBSEA vehicle / UUV family; defense + commercial; legacy prime)

Data & sources

Press releases

1

Web sources

3

4 sources backing this record.View all →

Availability and pricing

Availability
Not sold (internal use)
Price
Not publicly disclosed
Units in field
Not disclosed
Sales model
Not disclosed
Lead time
Not disclosed

Pricing

No verified price is on record for REMUS (100 / 300 / 620). Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.

How DEPLOY tracks pricing

Deployments (1)

REMUS (100 / 300 / 620) on the deployment map

Where REMUS (100 / 300 / 620) 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.

Full change history →

Deployment-verified media (1)

PRIMARY SOURCE
Courtesy of HII

HII footage of its REMUS autonomous undersea vehicle and its Sea Launcher launch-and-recovery system. REMUS conducts autonomous undersea navigation and mission management; a US defense system (range and endurance figures are HII's claims).

From deployment: United States

Safety record

No incidents on record for REMUS (100 / 300 / 620).

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Sources (4)

  1. https://news.usni.org/2020/02/04/hii-ceo-350m-deal-for-uuv-maker-hydroid-keeps-shipbuilder-in-line-with-navy-demand
  2. https://www.navalnews.com/naval-news/2026/04/hii-builds-on-submarine-mum-t-success-with-new-pentagon-deal/
  3. https://www.hii.com/news/hii-remus-620-unmanned-underwater-vehicle-noaa-2023
  4. https://maritime-executive.com/article/huntington-ingalls-wins-contract-for-up-to-200-unmanned-sub-drones

Compare REMUS (100 / 300 / 620)

Common questions

What is REMUS (100 / 300 / 620)?
Huntington Ingalls Industries (NYSE: HII), America's largest military shipbuilder with more than 42,000 employees, makes the REMUS family of autonomous undersea vehicles through its Mission Technologies division, the legacy-prime contrast to the new-defense maritime startups Saronic and Anduril. The REMUS line, whose lineage dates to 2001 from Hydroid and Woods Hole Oceanographic Institution heritage, came to HII through its $350 million acquisition of Hydroid that closed on March 26, 2020, bought from Norway's Kongsberg, and spans the REMUS 100, 300, 600, and the newer REMUS 620 introduced in 2022 with up to 110 hours of endurance and 275 nautical miles of range, used for mine countermeasures, hydrographic survey, intelligence, and electronic warfare. The registry records it at production, mature-fielded maturity, the highest in the maritime set, on the strength of an order for up to roughly 200 REMUS-class vehicles, a NOAA order for REMUS 620 units delivered in 2024, an international order, and, most significantly, operational fielding: in June 2025, in the Yellow Moray demonstration, HII conducted the first forward-deployed torpedo-tube launch and recovery of a REMUS 600 from the submarine USS Delaware across three fully autonomous sorties, followed by a new Defense Innovation Unit contract for a submarine Torpedo Tube Launch and Recovery system. Its autonomy is decades-mature and operationally demonstrated, the lowest claimed-versus-verified risk in the maritime set, while the TTLR contract value, the exact total REMUS 620 fleet delivered, and the full quantity delivered under the up-to-200 ceiling are not verified.
How much does REMUS (100 / 300 / 620) cost?
REMUS (100 / 300 / 620)'s price is not publicly disclosed. DEPLOY has no verified price on record for REMUS (100 / 300 / 620) from Huntington Ingalls Industries. Physical-AI systems like this are often sold through enterprise contracts or operated as a service rather than at a public list price; check the manufacturer for the latest.
Is REMUS (100 / 300 / 620) actually deployed in the real world?
Yes. REMUS (100 / 300 / 620) is independently verified in real-world operation on the DEPLOY registry, confirmed at named deployment sites with primary sources: not a concept, render, or demo-only.
Who makes REMUS (100 / 300 / 620)?
REMUS (100 / 300 / 620) is made by Huntington Ingalls Industries, based in Pascagoula, MS, USA, founded in 2011.
Where is REMUS (100 / 300 / 620) deployed?
1 verified deployment of REMUS (100 / 300 / 620) is on the DEPLOY registry, including at United States.
Methodology: Verified · 4 sources (1 primary) · last reviewed 2026-07-12

Verification posture

Verified

High confidence

Review state

Stable

Last reviewed 2026-07-12

Maturity + lifecycle

Maturity stage: production

Lifecycle: active

Architectural position

Cohort: underwater

Sub-cohorts: maritime-legacy-prime-vs-new-defense

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 REMUS (100 / 300 / 620).

Recent coverage

REMUS (100 / 300 / 620) in third-party press

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Jun 16, 2026

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