Offshore Support Vessels Market Size and Share

Offshore Support Vessels Market Size

Offshore Support Vessels Market Analysis by Mordor Intelligence

The Offshore Support Vessels Market size is projected to expand from USD 21.46 billion in 2025 and USD 23.08 billion in 2026 to USD 34.09 billion by 2031, registering a CAGR of 8.11% between 2026 to 2031.

Overlap among legacy oil-and-gas drilling, accelerating offshore-wind build-outs, and a sizable decommissioning backlog keeps vessel utilization tight even as shipyard capacity and volatile steel prices restrain newbuild supply. Charterers now favor multi-role tonnage capable of switching between anchor handling, subsea work, and wind-farm logistics, while owners race to add battery-hybrid and methanol-ready propulsion to satisfy International Maritime Organization 2030 emission limits. The market’s age profile, median 18 years, intensifies replacement demand, heightening barriers for cash-strapped operators but creating pricing power for modern fleets. Competitive dynamics, therefore, hinge on propulsion technology, dynamic-positioning class, and digital-readiness rather than sheer hull count.

Key Report Takeaways

  • By vessel type, Anchor Handling Tug/Anchor Handling Towing Supply (AHT/AHTS) units commanded 42.4% of the offshore support vessels market share in 2025; in contrast, the multi-purpose, subsea-construction, and standby-crew category is forecast to grow at a 9.5% CAGR through 2031.
  • By application, oil and gas maintained a 50.9% share of the offshore support vessels market size in 2025, whereas offshore wind is advancing at a 15.9% CAGR to 2031.
  • By geography, North America led with 33.7% offshore support vessels market share in 2025, while Asia-Pacific is poised for the fastest 9.1% CAGR to 2031.

Note: Market size and forecast figures in this report are generated using Mordor Intelligence’s proprietary estimation framework, updated with the latest available data and insights as of January 2026.

Segment Analysis

By Vessel Type: AHT/AHTS Dominance Meets Multi-Purpose Growth

AHT/AHTS units secured 42.4% offshore support vessels market share in 2025, driven by deepwater rig moves in the Gulf of Mexico, North Sea, and West Africa, with modern ≥ 15,000 bollard-pull vessels running above 82% utilization at Tidewater’s fleet hub. Platform Supply Vessels (PSVs) followed, supporting logistics for drilling fluids and provisions; North Sea PSV utilization climbed to 78% in 2024 on the back of Equinor and Aker BP campaigns.

The “Other Types” cluster, multi-purpose support vessels (MPSVs), subsea-construction units, and standby-crew boats, will outpace headline growth at 9.5% CAGR as owners value assets that pivot between well intervention, cable-lay, and emergency response. Saipem deployed the Constellation III MPSV in 2025 to TotalEnergies’ Mero-3 FPSO installation, showcasing DP-3 and 400-ton crane capability. Regulatory mandates in the U.K. and German waters now require dedicated safety vessels within 30 minutes of turbine arrays, expanding demand for standby craft. Damen delivered six Fast Crew Supplier 2710 units in 2024, each moving 26 technicians in sea states up to 2.5 m.

Offshore Support Vessels Market Share by Vessel Type, 2025
Offshore Support Vessels Market Share by Vessel Type, 2025

By Application: Oil and Gas Anchors While Wind Accelerates

Oil and gas retained 50.9% of the offshore support vessels market size in 2025, buoyed by Petrobras’ 62-vessel charter portfolio in Brazil’s pre-salt Santos Basin and Chevron’s Anchor project in the Gulf of Mexico. Decommissioning also underpins demand: the U.K. regulator estimates 2,000 wells and 500 platforms require abandonment by 2030, necessitating heavy-lift and plug-and-abandonment support.

Offshore wind, however, is the fastest-growing application, expanding at a 15.9% CAGR. Ørsted’s Hornsea 3 alone contracted 12 service-operation vessels and eight crew-transfer boats for a 25-year operations phase. U.S. wind build-out along the Atlantic seaboard is capacity-constrained by the Jones Act, encouraging domestic yards to invest despite 36-month delivery lead times. Emerging niches include subsea mining and offshore aquaculture, where Norway’s Loke Marine commenced a two-year seabed-sampling charter in 2025.

Offshore Support Vessels Market Share by Application, 2025
Offshore Support Vessels Market Share by Application, 2025

Geography Analysis

North America held 33.7% of the offshore support vessels market share in 2025, propelled by 22 active Gulf of Mexico rigs and early-stage U.S. wind projects. The Jones Act limits mean only 12 compliant service-operation vessels are available for a 30-GW Atlantic pipeline, sending charter rates north of USD 50,000 per day and prompting new orders at Gulf Coast yards despite extended delivery slots. Canada’s Bay du Nord project, sanctioned in 2025, will need six DP-2 PSVs and two AHTS units from 2028.

Europe combines North Sea drilling intensity with the world’s largest installed offshore wind base. Ørsted’s Hornsea 3 and RWE’s Sofia projects together locked in 20 service-operation vessels through 2050, guaranteeing long-duration revenue streams for Cadeler and Seaway 7. Germany cleared 4 GW of new wind capacity in 2024, spurring cable-lay demand. Norway spudded 15 exploration wells in 2024, the highest since 2019, keeping Stavanger-based AHTS utilization above 80%.

Asia-Pacific will post a 9.1% CAGR to 2031, fueled by China’s target of 100 GW offshore wind by 2030 and India’s Krishna-Godavari deepwater program. China installed 6.3 GW in 2024, driving crew-transfer utilization beyond 85% in coastal bases such as Yangjiang. India’s ONGC drilled eight deepwater wells in 2024, chartering DP-2 PSVs from Singapore and Malaysia. Australia’s Star of the South wind farm, approved in 2024, will require six service-operation vessels from 2028.

Offshore Support Vessels Market Growth Rate by Region

Regulatory Landscape

Regulation is increasingly shaping offshore support vessel (OSV) technical specifications and operating economics around safety, personnel carriage, and emissions reporting. Under the International Maritime Organization (IMO), amendments entering into force on 1 January 2026 add requirements for lifting appliances on offshore construction ships, tightening expectations for equipment standards and documentation on construction and subsea-support tonnage. In parallel, the IMO International Code of Safety for Ships Carrying Industrial Personnel (IP Code) (Chapter XV) applies to cargo ships and high-speed craft carrying more than 12 industrial personnel, for vessels constructed on or after 1 July 2024. This reinforces demand for purpose-designed offshore wind and construction support vessels with compliant arrangements for industrial personnel.

In Europe, emissions compliance is shifting from voluntary claims toward auditable data and, next, carbon cost exposure. Regulation (EU) 2015/757 (EU MRV) applies greenhouse gas monitoring and reporting to offshore ships of 400 GT and above from 1 January 2025, raising the compliance bar for OSV operators serving EU jurisdictions. In the United States, the U.S. Coast Guard (USCG) has formalized navigational safety expectations for vessels operating in or near offshore renewable energy installations through NVIC 03-23, influencing routing, risk assessments, and site-interface procedures for Jones Act-constrained service and crew transfer activity around offshore wind project areas.

Competitive Landscape

Market concentration remains moderate: the top five operators, Tidewater, Bourbon, Maersk Supply Service, Seacor Marine, and Edison Chouest Offshore, hold roughly 35% of global capacity, leaving regional specialists room to maneuver. Technology and environmental credentials now trump raw fleet size. Tidewater’s USD 180 million purchase of 12 modern PSVs from Swire Pacific in 2024 allowed the retirement of older hulls and the immediate charter of DP-2 tonnage into Asia-Pacific wind campaigns. Maersk Supply Service’s USD 45 million hybrid-retrofit program secured sustainability-linked charters with Equinor at premium rates.

Digital advantage is another differentiator. Bourbon’s predictive-maintenance suite delivered 22% downtime reduction and 98% availability guarantees, an edge where rig delays cost operators USD 500,000 daily. Solstad carved out a niche in construction support with a 10-year DP-3 contract for the Normand Maximus, one of only eight comparable units worldwide. Disruptors such as Cadeler channel wind-specific equity, USD 600 million raised in 2024, into next-generation turbine-installation vessels, lifting competitive pressure on oil-centric incumbents.

Offshore Support Vessels Industry Leaders

  1. Transocean

  2. Valaris

  3. Seadrill

  4. Noble

  5. Shelf Drilling

  6. *Disclaimer: Major Players sorted in no particular order
Offshore Support Vessels Market Concentration

Market Opportunities and Future Outlook

Fleet renewal and retrofit capacity anchors the market white space given the aging operating fleet and tighter compliance requirements, while shipyard slots remain limited. Operators are putting capital toward lower-emission and higher-spec capability rather than generic tonnage additions. Maersk Supply Service committed USD 45 million to hybrid retrofits across four anchor handlers in 2024, and Eidesvik converted two PSVs in 2025 while tying the upgrades to long-term Equinor charters. With a median 18-year fleet age (2024) and EU emissions reporting obligations (MRV from 1 January 2025), the case for battery-hybrid, methanol-ready, and digital-ready upgrades strengthens, alongside third-party engineering, class, and energy-efficiency services that reduce downtime during dry-docking.

Offshore wind operations and construction are also extending multi-year service needs that favor owners with walk-to-work capability, DP-2 or higher, and higher-comfort accommodation, alongside local-content constraints in some markets. In July 2026, Ørsted and Windcat signed long-term contracts for seven crew transfer vessels supporting UK wind farm operations out of Grimsby, illustrating how operations-phase requirements translate into multi-vessel awards and sustain utilization for modern crews and craft. Financing and newbuild programs for wind-specific tonnage continue as well, including Cadeler arranging a EUR 247 million green term loan facility (backed by EIFO) in July 2026 to fund construction of its wind turbine installation vessel. This supports an investment pipeline for specialized offshore wind support and adjacent OSV services.

Recent Industry Developments

  • July 2026: Ørsted and Windcat signed long-term contracts for seven crew transfer vessels to support offshore wind operations in the UK, based out of Grimsby. The multi-vessel structure increases visibility of utilization for CTV operators and reinforces demand for purpose-built personnel transfer capacity tied to long-duration wind farm operations.
  • January 2026: DOF secured a four-year contract with Petrobras for its ROV support vessel Skandi Commander, with work scheduled to start in January 2027 and an estimated contract value of about USD 150 million. The award extends DOF's Brazil footprint and underlines sustained tendering for high-spec subsea and ROV support tonnage in pre-salt and related offshore programs.
  • November 2025: Windcat signed an agreement with Damen Shipyards Group for a new Multi-Purpose Accommodation Support Vessel (MP-ASV), with an option for five additional vessels. The move expands the build pipeline for wind-oriented offshore support assets that combine accommodation with deck and lifting capability, and it signals owners prioritizing flexible vessels that can cover construction support and operations-phase logistics.

Table of Contents for Offshore Support Vessels Industry Report

1. Introduction

  • 1.1 Study Assumptions & Market Definition
  • 1.2 Scope of the Study

2. Research Methodology

3. Executive Summary

4. Market Landscape

  • 4.1 Market Overview
  • 4.2 Market Drivers
    • 4.2.1 Up-cycle in offshore E&P CAPEX
    • 4.2.2 Accelerating offshore wind installations
    • 4.2.3 Stricter decommissioning mandates
    • 4.2.4 Surge in floating production systems (FPSO, FLNG)
    • 4.2.5 Ageing fleet renewal & green retrofit demand
    • 4.2.6 Data-driven OPEX optimisation (digital twins, CBM)
  • 4.3 Market Restraints
    • 4.3.1 High oil-price volatility
    • 4.3.2 Capital-intensive newbuild costs
    • 4.3.3 Shortage of experienced crew
    • 4.3.4 Limited yard capacity & high steel prices
  • 4.4 Supply-Chain Analysis
  • 4.5 Regulatory Landscape
  • 4.6 Technological Outlook
  • 4.7 Porter's Five Forces
    • 4.7.1 Bargaining Power of Suppliers
    • 4.7.2 Bargaining Power of Buyers
    • 4.7.3 Threat of New Entrants
    • 4.7.4 Threat of Substitutes
    • 4.7.5 Intensity of Competitive Rivalry
  • 4.8 Fleet Age & Renewal Analysis
  • 4.9 Investment Analysis

5. Market Size & Growth Forecasts

  • 5.1 By Vessel Type
    • 5.1.1 Anchor Handling Tug/Anchor Handling Towing Supply Vessels (AHT/AHTSs)
    • 5.1.2 Platform Supply Vessels (PSV)
    • 5.1.3 Other Types (MPSV, Subsea, Standy Crew)
  • 5.2 By Application
    • 5.2.1 Offshore Oil and Gas
    • 5.2.2 Offshore Wind
    • 5.2.3 Offshore Decommissioning
    • 5.2.4 Other Applications
  • 5.3 By Geography
    • 5.3.1 North America
    • 5.3.1.1 United States
    • 5.3.1.2 Canada
    • 5.3.1.3 Mexico
    • 5.3.2 Europe
    • 5.3.2.1 United Kingdom
    • 5.3.2.2 Norway
    • 5.3.2.3 Germany
    • 5.3.2.4 France
    • 5.3.2.5 Italy
    • 5.3.2.6 Russia
    • 5.3.2.7 Rest of Europe
    • 5.3.3 Asia-Pacific
    • 5.3.3.1 China
    • 5.3.3.2 India
    • 5.3.3.3 Japan
    • 5.3.3.4 South Korea
    • 5.3.3.5 ASEAN Countries
    • 5.3.3.6 Australia and New Zealand
    • 5.3.3.7 Rest of Asia-Pacific
    • 5.3.4 South America
    • 5.3.4.1 Brazil
    • 5.3.4.2 Argentina
    • 5.3.4.3 Chile
    • 5.3.4.4 Rest of South America
    • 5.3.5 Middle East and Africa
    • 5.3.5.1 Saudi Arabia
    • 5.3.5.2 United Arab Emirates
    • 5.3.5.3 Qatar
    • 5.3.5.4 Nigeria
    • 5.3.5.5 Angola
    • 5.3.5.6 Rest of Middle East and Africa

6. Competitive Landscape

  • 6.1 Market Concentration
  • 6.2 Strategic Moves (M&A, Partnerships, PPAs)
  • 6.3 Market Share Analysis (Market Rank/Share for key companies)
  • 6.4 Company Profiles (includes Global level Overview, Market level overview, Core Segments, Financials as available, Strategic Information, Products & Services, and Recent Developments)
    • 6.4.1 Bourbon Corporation SA
    • 6.4.2 Maersk Supply Service AS
    • 6.4.3 Seacor Marine Holdings Inc.
    • 6.4.4 Edison Chouest Offshore LLC
    • 6.4.5 Swire Pacific Limited
    • 6.4.6 Tidewater Inc.
    • 6.4.7 Harvey Gulf International Marine LLC
    • 6.4.8 Solstad Offshore ASA
    • 6.4.9 Hornbeck Offshore Services Inc.
    • 6.4.10 PACC Offshore Services Holdings Ltd.
    • 6.4.11 DOF Group ASA
    • 6.4.12 Vroon Offshore Services BV
    • 6.4.13 Siem Offshore Inc.
    • 6.4.14 Havila Shipping ASA
    • 6.4.15 Eidesvik Offshore ASA
    • 6.4.16 Vallianz Holdings Limited
    • 6.4.17 Companhia Brasileira de Offshore (CBO)
    • 6.4.18 Zakher Marine International
    • 6.4.19 Damen Shipyards Group
    • 6.4.20 Deep Sea Supply Plc

7. Market Opportunities & Future Outlook

  • 7.1 White-space & Unmet-Need Assessment

Research Methodology Framework and Report Scope

Market Definition and Coverage

This market is defined as the revenue generated from offshore support vessels that are chartered or operated to transport supplies, crew, and equipment, and to provide towing, anchoring, standby, and similar marine support for offshore energy activities across global waters.

Scope exclusions: The sizing excludes naval vessels and inland waterway workboats, and it also excludes onshore logistics and port service revenue that is billed outside OSV day-rate contracts.

Segmentation Overview

  • By Vessel Type
    • Anchor Handling Tug/Anchor Handling Towing Supply Vessels (AHT/AHTSs)
    • Platform Supply Vessels (PSV)
    • Other Types (MPSV, Subsea, Standy Crew)
  • By Application
    • Offshore Oil and Gas
    • Offshore Wind
    • Offshore Decommissioning
    • Other Applications
  • By Geography
    • North America
      • United States
      • Canada
      • Mexico
    • Europe
      • United Kingdom
      • Norway
      • Germany
      • France
      • Italy
      • Russia
      • Rest of Europe
    • Asia-Pacific
      • China
      • India
      • Japan
      • South Korea
      • ASEAN Countries
      • Australia and New Zealand
      • Rest of Asia-Pacific
    • South America
      • Brazil
      • Argentina
      • Chile
      • Rest of South America
    • Middle East and Africa
      • Saudi Arabia
      • United Arab Emirates
      • Qatar
      • Nigeria
      • Angola
      • Rest of Middle East and Africa

Data Sources, Market Sizing, and Validation

Desk Research

Desk work starts by building a clean demand map of offshore activity and fleet availability, so later assumptions are not floating. Public sources, such as IEA offshore oil and gas supply outlooks, EIA offshore production statistics, national offshore regulators and leasing agencies, and IMO/flag state safety and registration references, are used to anchor activity levels and operating rules.

We also review OSV owner investor decks, annual reports, and earnings call notes to track utilization, day-rate direction, and fleet changes by vessel class. On top of this, we use paid subscriptions for company financials and intelligence, plus a ship-focused database and a contract and tenders feed to cross-check awarded work, vessel deployment signals, and timing. The sources listed here are illustrative and not exhaustive, and we reviewed additional public references to support data collection, validation, and clarification.

Primary Interviews and Surveys

Primary inputs come from interviews and short surveys with OSV owners and operators, chartering and commercial managers, offshore project teams, and marine procurement stakeholders across APAC, EMEA, and the Americas. The discussions were used to confirm how day-rates are quoted, how utilization behaves by basin and season, and which vessel classes are being substituted or kept distinct, then we adjusted the model assumptions where differences were consistently observed.

Distribution of primary research fieldwork respondents

Company typeRespondent positionRegion
Top tier: 39% CXOs: 13%APAC: 47%
Mid tier: 45% Functional/Unit leaders: 30%EMEA: 32%
Smaller Players: 16% Managers: 57%Americas: 21%

Market-Sizing & Forecasting

The core sizing uses a top-down build where offshore activity levels are reconstructed by basin and then translated into OSV demand through service intensity and vessel mix assumptions. In practice, we start from indicators like offshore rig counts and days on hire, subsea and offshore wind project schedules, and offshore production and maintenance activity, which are then converted into expected vessel-days for PSVs, AHTS, and other common OSV roles.

Once the vessel-day pool is formed, pricing is applied using observed day-rate bands and a weighted mix that reflects contract length, spot exposure, and typical utilization ranges. To keep the totals realistic, we corroborate results with selective bottom-up approximations, such as sampling disclosed charter rates, checking representative fleets against stated utilization, and validating implied revenue per vessel against reported performance ranges. Forecasts are developed using scenario analysis around offshore capex, regional project starts, and utilization normalization, followed by stepwise updates to day-rates based on primary inputs and recent tender outcomes. Where data is thin for smaller basins, gaps are handled by using proxy utilization and rate curves from comparable regions, then stress-testing the impact in review.

Data Validation & Update Cycle

Model outputs are checked against independent market signals, including fleet supply changes, tender volumes, and utilization direction, before the final numbers are signed off. If a region shows a sharp jump that is not supported by rigs, project timing, or awarded work, we re-check the assumptions and re-contact relevant interviewees for clarification.

The estimates go through multi-step analyst reviews where inputs, unit logic, and currency conversions are checked for consistency and outliers. Reports are refreshed annually, and interim updates are made when material events occur, such as major offshore sanctioning shifts, sudden day-rate resets, or meaningful fleet capacity changes. Before delivery, a final pass is completed so clients receive the latest updated view aligned to the current data cut.

Mordor Intelligence's Global Offshore Support Vessels Market Market Size Compared Against Other Published Estimates

Published OSV market numbers can look far apart even when they talk about the same vessel types, because the timing of the pricing snapshot and the way rates are averaged across spot and term work is not handled the same way. Differences also show up when sources mix offshore wind support revenue into the same bucket, or when they use a broader workboat definition that brings in adjacent marine services.

In a refresh-led approach, the spread is often explained by when currency conversion is locked, how fast day-rate curves are updated after tender cycles, and whether utilization is treated as a yearly average or a peak-season proxy. That is why the 2026 value in this report was updated using the most recent contract and utilization checks, along with desk indicators, a discipline applied by Mordor Intelligence.

Benchmark comparison

SourceMarket SizeGaps in Research Methodology
Mordor Intelligence USD 23.08 B (2026)
Industry Research Publisher A USD 25.60 B (2024)Uses an earlier base year and can reflect a different rate cycle, and it is not always clear if the pricing is a spot-heavy snapshot or a blended annual average across contract types.
Research Platform B USD 22.71 B (2024)A lower 2024 value can come from slower day-rate progression assumptions and a more conservative utilization path, and the forecast window differs, which can change what is treated as the normalized starting point.

Across the three figures, most of the gap can be traced back to base-year choice, how utilization is averaged, and how day-rates are updated and converted into USD. By keeping the market boundary tied to OSV charter and operating revenue and by forcing each step to reconcile with observable activity and tender signals, the final number stays transparent and repeatable even when conditions change fast.

Key Questions Answered in the Report

How large is the offshore support vessels market in 2026?

The offshore support vessels market is valued at USD 23.08 billion in 2026, continuing its trajectory toward USD 34.09 billion by 2031.

What factors drive demand for new offshore support vessels?

Rising offshore-wind installations, a rebound in deepwater exploration CAPEX, and the need to replace aging tonnage with low-emission, digital-ready ships are the primary demand drivers.

Which vessel class dominates the sector?

AHT/AHTS units remain the single largest class, holding 42.4% offshore support vessels market share in 2025, thanks to their critical role in rig moves and deepwater anchoring.

Why are charter rates climbing in the U.S. offshore wind segment?

Jones Act constraints limit the number of compliant vessels, creating supply scarcity just as East Coast wind projects enter construction, which pushes day rates above USD 50,000.

What technologies are owners adopting to cut operating costs?

Battery-hybrid propulsion, methanol dual-fuel engines, predictive maintenance, and digital twins are being deployed to reduce fuel burn, emissions, and unplanned downtime.

How severe is the crew shortage?

The International Maritime Organization projects an 89,510-officer deficit by 2026, delaying vessel deployment and inflating wage bills, especially in Asia-Pacific growth markets.

Page last updated on:

Offshore Support Vessels Market Report Snapshots