OVERVIEW
The underwater drone market covers three classes of uncrewed subsurface platform: unmanned underwater vehicles (UUVs), a category umbrella used by market-research houses; the remotely operated vehicles (ROVs) within it that remain tethered to and piloted from a surface vessel; and the autonomous underwater vehicles (AUVs) that operate untethered on a pre-programmed or adaptive mission. Three buyer groups drive procurement: defence services buying mine countermeasures and intelligence, surveillance and reconnaissance (ISR) capability; offshore energy operators buying ROV inspection and intervention services for subsea infrastructure; and scientific and oceanographic institutions buying survey and research platforms. Surface vessels, unmanned surface vehicles (USVs), are covered separately on this site's maritime autonomous systems market page and are cross-referenced rather than repeated here; this page covers subsurface platforms only.
Three research houses fetched for this page disagree on 2025 base-year market size by close to two billion dollars for what each frames as the same UUV market: MarketsandMarkets states USD 5.93 billion, growing to USD 8.72 billion by 2030 at an 8.0 per cent CAGR; Mordor Intelligence states USD 4.01 billion, growing to USD 5.58 billion by 2030 at a 6.83 per cent CAGR; and Research and Markets uses a 2026 baseline of USD 5.90 billion, growing to USD 9.48 billion by 2032 at an 8.15 per cent CAGR. None of the three fetched pages discloses a scope reconciliation for the gap.
The defence procurement record for 2026 is dominated by two US Navy programme families. Boeing's Orca extra large UUV (XLUUV), contracted in 2019 for four-plus-one vessels at a reported USD 247 million, has delivered three vessels, XLE0, XLE1 and XLE2, as of a March 2026 Naval News report, against an original delivery deadline of the end of 2022 that the programme has not met. Separately, Huntington Ingalls Industries (HII), which acquired REMUS and Seaglider AUV maker Hydroid from Kongsberg Maritime in a deal that closed 26 March 2020, holds a Navy contract for the REMUS 300, under the programme name Lionfish, reported in October 2023 as an initial nine units with options to grow to as many as 200 UUVs over five years for up to about USD 350 million, and received a further USD 36.9 million production award in May 2026. HII's Hydroid subsidiary also holds a USD 74.7 million, five-year indefinite-delivery/indefinite-quantity (IDIQ) contract, awarded in April 2021 and running through April 2026, for Mk 18 Mod 2 Kingfish payload modernisation.
AT A GLANCE
- UUV market size, 2025 (analyst spread)
- USD 4.01 billion (Mordor Intelligence) to USD 5.93 billion (MarketsandMarkets)
- Orca XLUUV original contract
- USD 247 million, four-plus-one vessels (2019); three delivered as of March 2026
- REMUS 300 / Lionfish contract ceiling
- Up to USD 350 million, up to 200 UUVs over five years (reported October 2023)
- REMUS global fleet
- More than 750 vehicles delivered to over 30 nations, used by 14 NATO navies (HII)
- Mk 18 Mod 2 Kingfish payload modernisation IDIQ
- USD 74.7 million, five years (awarded April 2021, HII/Hydroid)
- ITAR Category XX(a) modification effective date
- 19 October 2026
MARKET STRUCTURE
Defence buyers concentrate on two mission sets: mine countermeasures and ISR. HII's own account of its 2020 acquisition of Hydroid describes more than 15 years, at that point, of providing the US Navy with combat-proven UUVs for intelligence, surveillance, reconnaissance and undersea mine countermeasures operations, built around the REMUS family. Kongsberg, which sold Hydroid to HII but retained its own AUV line, states on its HUGIN product page that the platform is used across defence, commercial and scientific missions, describing HUGIN as capable of mine countermeasures work and citing operating depths of 3,000, 4,500 and 6,000 metres with up to 100 hours of endurance at 4 knots; Kongsberg states development began in 1991, with the first commercial survey in 1997. Boeing's Orca XLUUV, the Navy's extra large UUV (XLUUV) programme, is built for a stated mission set of ISR, mine warfare, seabed warfare and expeditionary support, per Naval News, with a hull described as 85 tons and 85 feet in length, a 6,500 nautical mile endurance, and a mission bay of just over 33 feet supporting up to 8 tons of payload.
Offshore energy operators buy ROV inspection and intervention capacity from specialist marine services contractors rather than from a Boeing- or HII-style defence prime. Fugro's own release states it was awarded a three-year ROV-based deepwater drill support contract, announced 5 August 2026, by Vantage International Management Company in support of ONGC's offshore drilling operations in India, deploying its FCV3000 ROV system to water depths of up to 3,000 metres for subsea installation and intervention, drilling and completion support, BOP and well-control monitoring, cementing observation and seabed inspection; the release does not state a contract value. Oceaneering's own release states its Ocean Intervention II programme, which began operations in April 2026, secured multi-discipline survey work offshore Trinidad and in the US Gulf of Mexico for a large international operator, announced 30 June 2026, including AUV surveys in deeper water off Trinidad and AUV-based block surveys with cathodic protection measurement integrated with the AUV in the Gulf; that release also does not state a contract value. Saab Seaeye's own oil and gas sector page states the company is the world leader in electric underwater e-robotic systems for the oil and gas industry, a company claim rather than an independently verified ranking, naming its Cougar-XTi and Falcon vehicle families and stating its electric systems run up to 50 per cent more efficient than equivalent electro-hydraulic systems; the page names Underwater Contracting (UCO) as operating a fleet of 33 Falcon ROVs.
Scientific and oceanographic buyers sit closest to the origin of the technology. HII's account of the REMUS family's 25th anniversary, marked at the 2026 Navy League Sea-Air-Space Exposition and reported by Ocean News, states REMUS began as a research vehicle funded by the Office of Naval Research and developed by the Woods Hole Oceanographic Institution to advance ocean science and undersea exploration, before its defence and commercial applications followed. The same report states the National Oceanic and Atmospheric Administration (NOAA) is deploying REMUS 620 vehicles to map seafloor habitats affected by the Deepwater Horizon spill, and that universities and marine laboratories use REMUS systems for long-duration environmental monitoring. HII states more than 750 REMUS vehicles have been delivered to over 30 nations and are used by 14 NATO navies, including the United States, United Kingdom, Norway and Germany, plus allied partners across the Indo-Pacific, with more than 90 per cent of all REMUS systems deployed over the past 25 years still in active service, on HII's own figures as reported by the outlet.
REGULATORY LANDSCAPE
Export control is the regulatory story specific to underwater drones in 2026. A rule that took effect 15 September 2025 brought large UUVs under US Munitions List Category XX(a)(10), controlling vehicles that either carry an anti-recovery feature such as a scuttle or self-destruct capability, or exceed 3,000 pounds gross weight while designed to operate autonomously for more than 24 hours or beyond 70 nautical miles. That rule extended export control reach to large UUVs used in civil roles, including oceanographic research, the oil and gas industry and subsea infrastructure work, the same three buyer classes this page covers, while adding a licence exemption under section 126.9(u) permitting temporary export of UUVs under 8,000 pounds for scientific research, resource exploration, infrastructure work or search and rescue, provided there is no transfer of registration, control or ownership to a foreign person.
A Federal Register notice dated 18 September 2026 modifies that framework again, effective 19 October 2026. It removes UUVs of up to 8,000 pounds gross weight from ITAR control where they lack navigation capability beyond waypoint-following and collision avoidance, on the stated basis that such vehicles no longer warrant control under the ITAR, while retaining control for sub-8,000-pound UUVs specially designed to operate without human interaction for more than 24 hours with enhanced navigation, and creating a new category, XX(a)(11), for UUVs exceeding 8,000 pounds with autonomous operation capability. The effect, on the sources reviewed for this page, is a narrower export-control net around the offshore energy and scientific UUVs this page's market structure section covers, while defence-grade autonomous navigation stays controlled.
The Navy's own contracting pattern for UUVs favours ceiling and IDIQ vehicles over single-lot buys. The REMUS 300 Lionfish award reported in October 2023 was structured as an initial nine units with options to grow to as many as 200 over five years, and HII's Mk 18 Mod 2 Kingfish payload modernisation award, worth up to USD 74.7 million, was structured as a five-year IDIQ rather than a fixed quantity contract. Both mechanisms let the Navy draw down further units or task orders against an established ceiling rather than negotiating a fresh procurement action for each increment.
STAY ON TOP OF THIS MARKET
Track Underwater Drone Market with the weekly Signal Dossier.
One free weekly briefing on the signals that matter in the autonomous-systems sector: contract awards, capital flows, regulatory shifts, and what they change. Evaluating a specific company? A five-day, source-traced Decision Brief answers one decision question for £999.
PROCUREMENT AND FUNDING RECORD
Boeing's Orca XLUUV traces to a 2019 contract reported at USD 247 million for four-plus-one vessels, with an original delivery deadline of the end of 2022. Naval News reported in March 2026 that three vessels, XLE0, XLE1 and XLE2, had been completed, a schedule the same report describes as having lapsed through ongoing delays rather than meeting the original timeline.
HII's REMUS 300, under the Lionfish programme name, was reported by The Maritime Executive on 12 October 2023 as an award covering an initial nine units with options to grow to as many as 200 UUVs over five years, for a total contract value reported as up to about USD 350 million. The Defense Post reported a further USD 36.9 million award on 8 May 2026 to produce additional Lionfish vehicles and support equipment, with project completion expected by May 2027; the same report describes Lionfish orders as open for up to 200 UUVs through 2028.
HII's Hydroid subsidiary separately holds a Mk 18 Mod 2 Kingfish payload modernisation award, reported by ExecutiveBiz as a potential five-year IDIQ worth USD 74.7 million, awarded in April 2021 with work running through April 2026, covering Increment II hardware for the Navy's mine-countermeasures UUV.
In offshore energy, Fugro's three-year ROV deepwater drill support contract for Vantage International Management Company, supporting ONGC's operations in India, was announced 5 August 2026 without a disclosed value. Oceaneering's Ocean Intervention II survey work offshore Trinidad and the US Gulf of Mexico, for a large international operator, was announced 30 June 2026, also without a disclosed value; both records illustrate that offshore energy inspection contracts in this record are reported by scope and duration rather than by price.
COMPETITIVE DYNAMICS
Boeing's Orca is the Navy's extra large UUV (XLUUV) programme, and its competitive position rests on that single contract's schedule performance: three of the originally contracted four-plus-one vessels delivered as of March 2026, against a lapsed end-2022 deadline, per Naval News.
HII is the dominant named supplier across the Navy's medium and small UUV lines. Its Hydroid subsidiary, acquired from Kongsberg Maritime in a deal that closed 26 March 2020, builds the REMUS family under the Lionfish programme name and holds the Mk 18 Mod 2 Kingfish payload modernisation IDIQ; HII states more than 750 REMUS vehicles have been delivered to over 30 nations and are used by 14 NATO navies, a global installed base no other named UUV supplier on this page's sources claims to match, and describes REMUS, in its own words as reported by Ocean News, as the world's leading autonomous underwater vehicle platform.
Kongsberg competes as a separate company from the Hydroid business it sold in 2020, positioning its own HUGIN AUV line as, in the company's own words, the most successful commercial AUV available and one that has completed more commercial surveys than any other AUV, spanning defence mine-countermeasures work alongside commercial and scientific survey missions.
Saab competes in the offshore energy segment through its Seaeye ROV business rather than in the Navy UUV programmes above; its own materials describe the company as the world leader in electric underwater e-robotic systems for the oil and gas industry, a company claim, built around the Cougar-XTi and Falcon vehicle families and named customers including Underwater Contracting (UCO), which the page states operates a fleet of 33 Falcon ROVs.
ANALYST ESTIMATES
Three research houses fetched for this page disagree on the 2025 (or nearest available) base-year size of the UUV market by close to two billion dollars, for what each frames as a comparable category. MarketsandMarkets states the global UUV market at USD 5.93 billion in 2025, growing to USD 8.72 billion by 2030 at an 8.0 per cent CAGR, with unit volume rising from 19,092 units in 2024 to 33,603 units by 2030; it names ROVs the largest segment by type and AUVs the fastest-growing at an 8.2 per cent CAGR, describes military and defence as the most dominant application segment, and names Kongsberg, Saab AB, BAE Systems, Exail Technologies and Saipem among leading companies. Mordor Intelligence states USD 4.01 billion in 2025, growing to USD 5.58 billion by 2030 at a 6.83 per cent CAGR, states ROVs held 56.67 per cent share in 2024 against AUVs expanding at 9.54 per cent CAGR, states defence applications were 39.67 per cent of 2024 revenue, and names Kongsberg Gruppen, Teledyne Technologies, Saab AB, Oceaneering International and Fugro among top vendors, with the top five holding less than half of global share. Research and Markets uses a different base year entirely, stating the market at USD 5.90 billion in 2026, growing to USD 9.48 billion by 2032 at an 8.15 per cent CAGR.
None of the three fetched pages discloses a scope reconciliation, whether UUV, AUV and ROV are counted the same way, or whether platform sales are counted against service revenue, that would explain the gap. This is Tier 5 evidence in the terms this page uses throughout: syndicated market-research output, useful for showing the range analysts publish, not resolved here into one figure this page treats as authoritative.
| Analyst | Figure | Base year | Forecast year | CAGR |
|---|---|---|---|---|
| MarketsandMarkets | USD 5.93 billion to USD 8.72 billion | 2025 | 2030 | 8.0% |
| Mordor Intelligence | USD 4.01 billion to USD 5.58 billion | 2025 | 2030 | 6.83% |
| Research and Markets | USD 5.90 billion to USD 9.48 billion | 2026 | 2032 | 8.15% |
KEY PLAYERS
Orca XLUUV, USD 247 million 2019 contract for four-plus-one vessels; three delivered (XLE0, XLE1, XLE2) as of March 2026, past the original end-2022 deadline
REMUS and Seaglider maker Hydroid (acquired from Kongsberg Maritime, closed 26 March 2020); Lionfish/REMUS 300 Navy contract; Mk 18 Mod 2 Kingfish payload modernisation IDIQ
HUGIN AUV family for defence, commercial and scientific survey missions; sold Hydroid to HII in 2020 and operates a separate AUV line today
Cougar-XTi and Falcon electric work-class ROVs for offshore oil and gas inspection; customer base includes Underwater Contracting (UCO)
FCV3000 ROV deepwater drill support contractor; three-year contract for Vantage International Management Company/ONGC in India, announced August 2026
Ocean Intervention II AUV and geotechnical survey programme, offshore Trinidad and US Gulf of Mexico, announced June 2026
DRONE INTELLIGENCE ASSESSMENT
Two schedules will show whether Navy UUV investment is converting from contract ceiling to delivered fleet. Boeing's Orca has delivered three of its originally contracted four-plus-one vessels as of March 2026, against a deadline that lapsed at the end of 2022; a fourth and fifth delivery, or a further public schedule slip, is the next confirmable data point on that programme. HII's Lionfish/REMUS 300 line carries a ceiling of up to 200 units through 2028 against nine initial units reported in 2023 and a further, undisclosed-quantity USD 36.9 million award in May 2026; how much of that 200-unit ceiling the Navy actually draws down, rather than leaves unexercised, will indicate whether the small-UUV line scales the way the contract structure allows.
FREQUENTLY ASKED QUESTIONS
What is the difference between a UUV, an AUV and an ROV?
Unmanned underwater vehicle (UUV) is the umbrella term market-research houses use for uncrewed subsurface platforms. Within it, a remotely operated vehicle (ROV) stays tethered to, and piloted from, a surface vessel, while an autonomous underwater vehicle (AUV) operates untethered on a pre-programmed or adaptive mission. MarketsandMarkets and Mordor Intelligence both name ROVs the largest UUV segment by current share, with AUVs the faster-growing segment.
What is the Boeing Orca XLUUV programme?
Orca is the US Navy's extra large UUV, contracted to Boeing in 2019 for a reported USD 247 million covering four-plus-one vessels, for a mission set Naval News reports as ISR, mine warfare, seabed warfare and expeditionary support. Three vessels, XLE0, XLE1 and XLE2, had been completed as of a March 2026 report, against an original end-2022 delivery deadline the programme has not met.
How big is the underwater drone market?
Analysts disagree by close to USD 2 billion on the same approximate base year. MarketsandMarkets states USD 5.93 billion in 2025, rising to USD 8.72 billion by 2030 at an 8.0 per cent CAGR. Mordor Intelligence states USD 4.01 billion in 2025, rising to USD 5.58 billion by 2030 at a 6.83 per cent CAGR. Research and Markets uses a 2026 baseline of USD 5.90 billion, rising to USD 9.48 billion by 2032 at an 8.15 per cent CAGR. None of the three discloses a scope reconciliation for the gap.
Who uses underwater drones for offshore energy inspection?
Named operators in this record include Fugro, which was awarded a three-year ROV deepwater drill support contract in India in August 2026, and Oceaneering, whose Ocean Intervention II programme is running AUV and geotechnical survey work offshore Trinidad and the US Gulf of Mexico since April 2026. Saab Seaeye supplies electric work-class ROVs, including the Cougar-XTi and Falcon families, to offshore oil and gas contractors such as Underwater Contracting (UCO).
Researching this market for a live decision? Commission a Decision Brief: an independent three-page read on any company in it, delivered in five working days.
RELATED BRIEFINGS
The Robot Boat Test: DIU's $300 Million SWAP-USV Challenge and the Maritime Autonomy Conversion Problem.
SIGNAL DOSSIER / VOL. 02-ACThe Oversubscribed Round: Helsing's $1.8 Billion Series E and the Pension Fund Test for European Autonomous Strike.
SIGNAL DOSSIER / VOL. 02-XThe Pacific Pivot: Japan, Airbus, and the Eurodrone's Transregional Industrial Base.
RELATED INTELLIGENCE
RELATED TRACKERS
Market Map: 43 companies across autonomy, propulsion, sensors and counter-UAS segments, including the underwater and maritime robotics vendors named in this record
PROCUREMENT TRACKERDefence Procurement Tracker: US Navy autonomous systems programmes, including UUV and undersea warfare contract awards
SOURCES & REFERENCES
ABOUT THIS PAGE
- Prepared by
- Drone Intelligence editorial team
- Last verified
- Q3 2026
- Sources
- 16 primary sources cross-checked
- Confidence
- High on verified facts. Assessment and forecast labelled inline.
- Corrections
- Email paul@droneintelligence.ai with the page URL and the source you believe contradicts the claim.
Prepared under the Drone Intelligence methodology. Editorial decisions follow our editorial policy. Independence and disclosure standards at ethics.
CITE AS
“Underwater Drone Market 2026 Forecast” Drone Intelligence, Q3 2026. https://droneintelligence.ai/intelligence/underwater-drone-market
Drone Intelligence, Market Intelligence. Updated Q3 2026.
paul@droneintelligence.ai