What Global Maritime does

Global Maritime is a specialist marine, offshore, and engineering consultancy founded in 1979 in London and now headquartered in Stavanger, Norway. It delivers independent Marine Warranty Survey (MWS) services, engineering and design studies, geosciences, marine operations, marine assurance, and dynamic positioning support across the full offshore project lifecycle — from concept through installation to decommissioning. Its primary clients are major oil and gas operators (Santos, PETRONAS, TotalEnergies, Chevron, Azule Energy, Petrogas), offshore wind developers (Ørsted, SSE Renewables, Ocean Winds, Corio Generation, Equinor), and adjacent marine infrastructure owners.

The firm's offering rests on two proprietary software assets developed over more than a decade: OPSIM, a discrete-event simulation tool for transport-and-installation strategy, scheduling, and O&M planning (current version 5.0, rebuilt on Microsoft .NET 9 with new asset-state and CO2 cost modelling); and GMoor, a frequency-domain mooring analysis program with time-domain transient and Alive Time Analysis (ATA) capabilities, now being extended into GMoor-Wind for floating offshore wind. These tools are sold as annual licences, bundled with engineering engagements, and used in-house across 150+ offshore wind project references globally. Geo-physical and geotechnical work is differentiated by a Cable Burial Risk Assessment (CBRA) approach combining geospatial analysis with master-mariner judgement.

Revenue is generated through project-based professional services contracts (large MWS campaigns, multi-year OMC arrangements), supplemented by a smaller software licensing stream. Global Maritime is privately held by McIntyre Partners (acquired 2023) and operates as part of the Moreld Group alongside Ocean Installer and Moreld Apply; Moreld completed an Oslo Børs uplisting in 2025. The company maintains 18+ offices across 15+ countries and pursues growth via local content consortiums (notably the GM-FCS partnership in Angola), tuck-in acquisitions (Iberian Offshore, 2024), and country launches in South Korea, Australia, Spain, and Ghana.

Name

Global Maritime

Legal name

Global Maritime Group AS

Website

https://globalmaritime.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

251–500 employees

Short description

Global Maritime is a Stavanger-headquartered marine and offshore engineering consultancy founded in 1979, providing Marine Warranty Survey, engineering, geosciences, and proprietary simulation software (OPSIM, GMoor) to oil & gas operators and offshore wind developers worldwide.

Ownership category

akta.pro rank

Product category

Marine & Offshore Engineering Consultancy

NAICS

Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839)

SIC

Oil & Gas Field Exploration Services (1382)

akta.pro primary industry

Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ)

akta.pro secondary industries

Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS) (TLADABAL), Offshore Wind & Marine Spatial Planning Regulation (EUAMANAM), Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ)

Keywords

• Marine warranty surveying
• Offshore engineering services
• Subsea geosciences consulting
• Marine operations management
• Offshore decommissioning services

Headquarters

HQ city

Stavanger

HQ country

Norway

HQ region

Europe

Offices19 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Professional Services - Marine Warranty Surveying: Core revenue stream providing independent Marine Warranty Surveyor (MWS) services for offshore marine operations including installation, decommissioning, and transportation. Services include review of marine procedures, transport & installation activities, and marine spread inspections.
2. Engineering & Consulting Services: Provides geosciences, engineering design, marine operations, and marine assurance services across the project lifecycle from concept through decommissioning.
3. Software Licensing: OPSIM and GMoor software offered as annual licenses or bundled with consultancy services. In-house developed tools used for mooring analysis, event simulation, and operational planning.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Global Maritime provides independent marine warranty surveying (MWS), engineering, geosciences, and marine operations services across the offshore project lifecycle for the oil & gas, renewables, shipping, infrastructure, and aquaculture sectors. The offering is augmented by in-house proprietary software (OPSIM for transport & installation simulation and GMoor for mooring analysis, with GMoor-Wind in development for floating wind). Services span concept, design, installation, operations, and decommissioning stages.

Product overview

Global Maritime offers an integrated portfolio of marine and offshore consultancy services supported by proprietary software products. The core software suite includes OPSIM (discrete event simulation for transport, installation, and operations planning) and GMoor (frequency domain mooring analysis), with GMoor-Wind in development for floating offshore wind applications. Services span the entire offshore project lifecycle: Geosciences (Geophysics, Engineering Geology, GIS, Geotechnical Engineering, Subsea Cables), Engineering, Marine Services, Marine Warranty Survey, Marine Operations, and Dynamic Positioning services. The company also provides decommissioning services and proprietary rig designs. The offering operates as a platform of specialized services and software tools that can be bundled for clients across oil and gas, renewables, shipping, infrastructure, and aquaculture sectors.

Differentiator

Problem solved

Functional benefit

Brands

• GM FCS Consortium: Joint venture consortium between Global Maritime and FCS Marine Engineering for Marine Warranty Survey services, focused on local content in Angola.
• GM Geo

Products and services

• Marine Warranty Survey (MWS) Independent third-party approval of marine operations including review of marine procedures, transportation and installation activities, and marine spread inspections to ensure compliance with project specifications and international regulations. Primarily serves oil & gas operators and offshore wind developers.
• Geosciences Services Geoscience services covering five core disciplines (Geophysics, Engineering Geology, Geospatial Information Systems, Geotechnical Engineering, Subsea Cables) for offshore wind lease areas and oil & gas developments.
• Engineering Services Engineering services covering design studies, mooring systems, vessel stability, and hydrodynamics across offshore projects for oil & gas and renewables clients.
• Marine Services Marine assurance, vessel inspections, and marine spread management services for offshore operations across oil & gas and renewables.
• Marine Operations Marine operations management including rig move procedures, mooring installation operations planning, and offshore construction management for oil & gas and renewables.
• OPSIM Software Discrete event simulation software for offshore project planning, enabling transport and installation strategy development, risk mitigation, and engineering resource optimization through variable-speed playback visualization and scenario modeling. Licensed to offshore wind and oil & gas planners (e.g., Corio Generation).
• GMoor Mooring Analysis Software Frequency domain mooring analysis program originally developed for spread moored drilling vessels and subsea support vessels, featuring low frequency time domain modes for transient offset investigation and optional damping calculations.
• GMoor-Wind Software Next-generation extension of GMoor being developed for fully integrated offshore floating wind turbine platforms, supporting iterative mooring arrangement design and final analysis against mooring standards. Developed in collaboration with Memorial University (Newfoundland) under Mitacs-NSERC funded R&D.
• Seabed Intelligence Reports (SIR) Geological, geohazard, and geotechnical desktop studies covering offshore wind lease areas, identifying principal strata, suitability risks, and seabed constraints for infrastructure development. Uses ground modelling techniques and geophysical isopachs to produce sub-bottom 3D risk surfaces.
• Dynamic Positioning (DP) Services Dynamic positioning assurance and consultancy services for offshore vessels and operations requiring station-keeping capabilities.

Quantifiable outcome

• Largest offshore platform removal in Australia - Harriet Alpha decommissioning with 1,600-tonne topsides and 1,480-tonne jacket
• +4 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered minor and core.

• Alpha 1 EnergyminorStrategic or Co-development Partner · 28 May 2026Cooperation agreement signed to deliver world-class MWS and Marine Assurance services in Ghana, combining Global Maritime's global expertise with Alpha 1 Energy's local capability.
• Entrion WindminorStrategic or Co-development Partner · 18 September 2025MoU signed to develop and demonstrate FRP monopile foundation technology in U.K. waters. Global Maritime providing transportation and installation services and developing a framework for future projects.
• UAE Ministry of Energy and InfrastructurecoreStrategic or Co-development Partner · 22 October 2024Strategic partnership in BluePass initiative - a transformative digital platform streamlining maritime operations, improving communication, and delivering real-time data insights. NeoNautica is the main technology collaborator. Platform unites over 300 maritime companies and serves more than 25,000 vessels.
• Memorial University (Newfoundland)minorStrategic or Co-development Partner · 1 January 2024Mitacs-NSERC funded R&D collaboration to develop and validate GMoor-Wind software. Two PhD candidates and two master's students working on floating offshore wind mooring analysis, with model testing in wind-tunnel wave tank facility. Project spanning approximately four years.
• FCS Marine EngineeringcoreStrategic or Co-development Partner · 1 January 2022Established consortium partnership with FCS Marine Engineering, a 100% Angolan-owned company and SOMWS member. Designed to build a self-sustaining pool of trained Angolan professionals capable of delivering world-class MWS services locally, reducing reliance on expatriate staff while meeting local content requirements.
• Ocean WindscoreStrategic or Co-development PartnerMWS partnership for Ocean Winds' EFGL floating offshore wind project in France. Global Maritime providing Marine Warranty Survey across all aspects of construction phase including foundation, WTG and cable installations. Ocean Winds is a joint venture between EDP Renewables and ENGIE.
• BoslanminorStrategic or Co-development PartnerMoU signed for collaboration within offshore renewables sector. Allows both parties to expand services offered to clients and leverage respective strengths to identify, secure, and collaborate on new opportunities. Supports approximately 20GW of offshore wind committed across Spain, Portugal, Italy, and Greece by 2030.
• Azule EnergycoreStrategic or Co-development PartnerMWS services for Agogo Integrated West Hub including Ndungu scope. Global Maritime and FCS consortium delivering with approximately 40% local Angolan content in Azule operations.
• TotalEnergies E&P AngolacoreStrategic or Co-development PartnerOngoing MWS services contract for series of brownfield projects including Pazflor Dynamic Umbilical repair. GMFCS consortium delivering with approximately 50% local Angolan content on TotalEnergies projects.
• Ocean InstallerminorImplementation/ SI/ Consulting PartnerVessel Norm and Vision utilized for Pazflor Dynamic Umbilical repair project offshore Angola. Ocean Installer providing offshore vessel operations with MWS oversight from GMFCS consortium.
• CABGOC (Chevron)minorStrategic or Co-development PartnerMWS services for South N'Dola development. GMFCS consortium delivered nearly 100% of in-country work with local Angolan personnel under Global Maritime's technical oversight.
• Corio GenerationminorStrategic or Co-development PartnerOPSIM software selected for production of complex simulations during early phase project development of offshore wind farms. Software now fully integrated and delivering exceptional results across Corio's global project portfolio.

Scale indicators6 records

Recent moves10 records

Expansion highlights7 records

Broad incumbents

• Bureau Veritas: Marine and offshore certification body offering marine warranty surveys, offshore asset integrity and consultancy across the same oil & gas and offshore wind customer base. Bureau Veritas is one of the largest direct MWS competitors.
• TechnipFMC: Subsea engineering and offshore project contractor with overlap in offshore engineering, marine operations and warranty surveying for oil & gas and emerging offshore wind markets.
• DNV: Global classification society and assurance provider with overlapping marine warranty surveying, offshore engineering and certification services for oil & gas and offshore wind. DNV is the dominant incumbent in many of the same MWS tenders Global Maritime competes in.
• Saipem: Offshore engineering, drilling and marine construction company with services adjacent to Global Maritime's offshore installation oversight and marine warranty work.
• Wood Group: Large engineering and consultancy firm with offshore energy and marine services capabilities across the project lifecycle, overlapping with Global Maritime's offshore engineering, geosciences and operations support.
• Lloyd's Register: Marine classification society offering offshore energy advisory, marine warranty and assurance services. Overlaps with Global Maritime in offshore engineering, certification, and oil & gas / offshore wind assurance.

Direct peers

• RPS Group (part of Tetra Tech): Consultancy providing offshore energy, geosciences and marine survey services, including seabed and cable route surveys - directly comparable to Global Maritime's geosciences subsea cables and engineering offerings.
• ABL Group (formerly AqualisBraemar LOC): Independent offshore marine consultancy providing marine warranty surveying, dynamic positioning assurance, rig moves and engineering services for offshore energy - directly comparable in service portfolio to Global Maritime.
• Intecsea (a Worley company): Offshore engineering consultancy specialising in subsea, floating systems and offshore wind - closely comparable to Global Maritime's engineering, mooring and floating offshore wind work.
• 2H Offshore (part of AqualisBraemar / ABL): Independent offshore engineering consultancy specialising in risers, mooring, subsea hardware, and floating systems - directly comparable to Global Maritime's engineering and software (GMoor) business streams.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/global-maritime

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Global Maritime