Wärtsilä

What Wärtsilä does

Wärtsilä Corporation is a Helsinki-headquartered public Finnish technology company (Nasdaq Helsinki: WRT1V) founded in 1834 that designs and manufactures innovative technologies and lifecycle solutions for the marine and energy markets. The company operates two principal business segments — Marine (dual-fuel engines, propulsion systems, ship electrification, fleet optimization software, port solutions) and Energy (flexible gas engine power plants and grid-scale battery energy storage systems). Its product portfolio includes a comprehensive range of dual-fuel engines (Wärtsilä 25, 31, 34DF, 46F, 46TS-DF) capable of running on LNG, methanol, ammonia, hydrogen, and ethanol, alongside diesel engines, thrusters, gearboxes, propellers, waterjets, hybrid and full-electric vessel propulsion, and the Fleet Operations Suite of digital optimization tools. Wärtsilä has delivered 72 GW of installed capacity across 180 countries, employing approximately 18,000 people globally with manufacturing operations in Finland, China (Shanghai, Wuxi, Suzhou, Zhenjiang), and a spare parts center in the Netherlands.

The company generates revenue through one-time equipment sales (marine engines, propulsion systems, power plants, BESS) supplemented by recurring lifecycle services (maintenance, spare parts, technical support, lifecycle agreements) and emerging digital/software revenue streams (GEMS Pulse, Fleet Operations Suite). Customer segments span merchant shipping, cruise and yachting, ferries, offshore oil and gas, offshore wind, naval/government, hyperscale data center operators, and power generation utilities. Go-to-market is primarily enterprise field sales supported by global service networks of subsidiaries, joint ventures, and authorized partners.

Wärtsilä is currently executing a portfolio optimization strategy, divesting its Gas Solutions business (EUR 300M 2024 revenue) to Mutares SE & Co. KGaA and its Water & Waste business to Solix Group AB. The company has set a 2030 carbon neutrality target for its own operations (Set for 30 program), with 50%+ GHG emission reductions achieved by end of 2024 versus 2021 baseline, and is positioning its fuel-flexible engine portfolio as the decarbonization pathway for marine and energy customers facing EU ETS, FuelEU Maritime, and IMO 2050 regulations.

Name

Wärtsilä

Legal name

Wärtsilä Corporation

Website

https://wartsila.cn

Company type

Public

Founded year

1834

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Wärtsilä Corporation is a Finnish public technology company (Nasdaq Helsinki: WRT1V) that designs and manufactures dual-fuel marine engines, propulsion systems, flexible gas engine power plants, and grid-scale battery storage for shipping operators, data centers, and utilities across 180 countries.

Ownership category

akta.pro rank

Product category

Marine and Energy Technology

NAICS

Other Engine Equipment Manufacturing (333618), Engine, Turbine, and Power Transmission Equipment Manufacturing (33361), Ship Building and Repairing (336611), Turbine and Turbine Generator Set Units Manufacturing (333611), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Engines & Turbines (3510), Ship & Boat Building & Repairing (3730), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Marine Diesel & Dual-Fuel Engines (IMAJAHAA)

akta.pro secondary industries

Marine Hybrid & Electric Propulsion Systems (IMAJAHAC), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN), Fuel & Emissions Systems for Propulsion (Fuel supply, SCR, EGR, exhaust aftertreatment) (IMAJAHAK), Marine Generators, Alternators & Power Electronics (Gen-sets, VFDs, converters) (IMAJAHAI), Propulsion Integration, Commissioning & Testing (Factory/sea trials, alignment) (IMAJAHAM), Propulsion Control, Monitoring & Automation (ECS, PMS interface) (IMAJAHAH)

Keywords

• Marine engine manufacturing
• Energy storage systems
• Ship propulsion systems
• Lifecycle service solutions
• Decarbonization technology

Headquarters

HQ city

Shanghai

HQ country

China

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Sales - Marine: Sale of marine engines, propulsion systems, and deck machinery for newbuild and retrofit applications
2. Equipment Sales - Energy: Sale of flexible gas engine power plants and battery energy storage systems for energy generation and grid stabilization
3. Lifecycle Services: Maintenance, spare parts, technical support, and lifecycle agreements for installed base. Gas solutions business generated EUR 300 million revenue in 2024 before divestment to Mutares.
4. Digital Solutions and Software: Fleet optimisation, voyage planning, and battery analytics software including GEMS Pulse platform

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Wärtsilä designs, manufactures, and services marine engines (dual-fuel and diesel), ship propulsion systems (thrusters, propellers, gearboxes), ship electrification solutions (hybrid and full-electric), and energy systems including grid-scale battery energy storage and flexible gas engine power plants. The company complements this hardware portfolio with lifecycle services, spare parts, and digital fleet optimization software for maritime and energy customers globally.

Product overview

Wärtsilä offers a comprehensive portfolio of marine and energy technologies organized as a platform-plus-modules architecture. Marine products include dual-fuel engines (Wärtsilä 25, 31, 34DF, 46F, 46TS-DF) running on LNG, methanol, ammonia, and traditional fuels; diesel engines (Wärtsilä 14, 20, 32); propulsion systems with thrusters, gearboxes, propellers, and waterjets; ship electrification solutions including shore power, hybrid systems, and full-electric vessel propulsion; fleet optimization tools (Navi-Planner, BridgeMate, SmartLog, Voyage Optimiser, CII Dashboard, eLogbook); and port optimization systems (Navi-Port, Port Management Systems, VTS). Energy solutions include flexible gas engine power plants and battery energy storage systems (BESS) for grid-scale renewable integration. The portfolio includes lifecycle services, maintenance agreements, and decarbonization solutions including carbon capture for shipping.

Differentiator

Problem solved

Functional benefit

Brands

• Wärtsilä Energy: Global leader in flexible power generation and energy storage solutions, helping customers optimize energy systems and plan assets for the energy transition.
• Wärtsilä Marine
• GEMS Pulse

Products and services

• Wärtsilä 34DF Dual-Fuel Engine Dual-fuel engine capable of running on natural gas and other fuels for marine applications with fuel flexibility.
• Wärtsilä 31 Dual-Fuel Engine Medium-speed marine engine with dual-fuel capability for various vessel types.
• Wärtsilä 25 Dual-Fuel Engine Medium-speed four-stroke marine engine with dual-fuel capability, available in 6-9 cylinder configurations with 1.7-3.4 MW power output.
• Wärtsilä 46F Dual-Fuel Engine Dual-fuel engine for marine propulsion with fuel flexibility capabilities.
• Wärtsilä 46TS-DF Dual-Fuel Engine Dual-fuel engine for marine applications with flexible fuel switching.
• Wärtsilä 32 Methanol Fuel Engine Methanol-fueled version of the Wärtsilä 32 engine for marine applications.
• Wärtsilä 14 Diesel Engine Diesel engine for marine power generation applications.
• Wärtsilä 32 Diesel Engine Diesel engine for marine power generation applications.
• Wärtsilä 20 Engine Marine engine for various vessel applications.
• Wärtsilä W25DF Ammonia Engine Ammonia-fueled version of the W25 engine, received CCS type approval certification, enabling ammonia as marine fuel for greenhouse gas reduction.
• Marine Thrusters (Retractable, Steerable, Transverse, Underwater-mountable) Complete range of thruster solutions including retractable, steerable, transverse, and underwater-mountable types for vessel propulsion.
• Marine Gearboxes Transmission gearboxes including two-speed, double input single output, and single input configurations for marine propulsion systems.
• Marine Propellers Complete range of propeller solutions including fixed pitch, controllable pitch, EnergoProFin, EnergoFLOW, built-up, and coastal/inland waterway propellers for various vessel types.
• Marine Waterjets Waterjet propulsion systems for high-speed marine vessels, including midsize and modular variants.
• Shore Power Solutions Onshore power supply systems allowing ships to connect to grid power while docked, reducing emissions at berth.
• Shaft Generator Shaft-mounted power generation systems for ships enabling auxiliary power recovery.
• Hybrid Solutions Integrated hybrid propulsion combining traditional engines with battery systems for improved efficiency in marine vessels.
• Full Electric Vessels Complete electric propulsion systems for fully electric vessels including ferries and other maritime transport.
• Electric Propulsion Systems Integrated electric propulsion systems for various vessel types including high-speed ferries.
• Hybrid LNG Carrier Solutions Hybrid propulsion solutions specifically designed for LNG carriers.
• Lifecycle Agreements Comprehensive long-term service agreements including Expert Insight diagnostics, data-driven maintenance planning, and operational support services for marine and energy customers.
• Ship Lifecycle Upgrade Solutions Upgrades including power limitation solutions, engine fuel conversions, and methane slip reduction for existing vessels.
• Navi-Port Just-in-Time Port Arrival System First commercial digital platform connecting ship navigation systems to ports for just-in-time arrival, enabling accurate arrival time communication and automatic speed adjustment to reduce fuel consumption, emissions, and port congestion.
• Fleet Operations Suite (FOS) with Voyage Optimiser Digital fleet optimization software suite for voyage planning, route optimization, compliance reporting, and just-in-time arrival using real-time weather data and safety parameters.
• Battery Energy Storage Systems (BESS) Grid-scale battery storage solutions for renewable energy integration and grid stability, including 50MW/100MWh and 100MW/223MWh systems deployed globally.
• GEMS Pulse Battery Data Analytics Platform Battery data analytics software platform bringing in-house analysis of BESS performance metrics to help operators improve system performance, plan revenue opportunities, and prevent operational anomalies.
• Flexible Gas Engine Power Plants Flexible internal combustion engine (ICE) power plants for balancing renewable energy and grid stability, including the Wärtsilä 34SG and 50SG spark gas engines for hyperscale data centers.
• Carbon Capture Solutions for Shipping First commercially available complete shipping carbon capture solution announced in May 2025 for reducing vessel greenhouse gas emissions.

Quantifiable outcome

• 50%+ greenhouse gas emissions reduction by end of 2024 compared to 2021 baseline
• +4 more outcomes

Named customers12 records

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature8 records

Partnerships

15 partnerships are on record, tiered core and minor.

• EU H4PERION Project ConsortiumcoreStrategic or Co-development Partner · 6 May 2026EU Horizon Europe funded project with 16 institutions from 7 European countries including University of Vaasa (lead), Wärtsilä, European Maritime Education Group, National Technical University of Athens, Tallinn University of Technology, ABS, Deltamarin, University of Oulu, Åbo Akademi University, Meric Wave Computanics, DLR, BALance Technology Consulting, Meyer Werft, and Wasaline. Project developing zero-carbon propulsion for ocean-going vessels including new combustion technology for hydrogen/biomethane mixtures.
• Mutares SE & Co. KGaAminorOthers · 22 December 2025Wärtsilä divested its gas solutions business to German private equity firm Mutares. The business was a recognized leader in gas solutions providing innovative systems and lifecycle solutions for the gas value chain including offshore LNG processing, inert gas systems, gas power generation, and LNG/biogas solutions. Transaction completed Q2 2026 after regulatory approvals.
• Siempelkamp GiessereiminorStrategic or Co-development Partner · 9 December 2025Strategic partnership with large cast components supplier as part of Wärtsilä's industrial operations. Details of cooperation not specified in available sources.
• WEC Energy GroupcoreStrategic or Co-development Partner · 1 October 2022World's first hydrogen blending test in utility-scale grid-connected reciprocating engine generator conducted mid-October 2022 in Upper Michigan. 18MW RICE unit blending hydrogen up to 25% by volume with natural gas. Project demonstrates dispatchable power units can operate on low and no-carbon fuels. Partners included Burns and McDonnell and Certarus.
• EPRIcoreStrategic or Co-development Partner · 1 October 2022Technical collaboration with EPRI on hydrogen blending test in utility-scale grid-connected reciprocating engine, demonstrating technology for global replication to reduce carbon emissions in power generation.
• WasalinecoreStrategic or Co-development PartnerWärtsilä will demonstrate hydrogen combustion technology on Wasaline's Aurora Botnia ferry operating between Finland and Sweden. Project part of H4PERION to reduce emissions and particularly methane slip. Ferry will serve as real-world test platform alongside laboratory testing.
• Wärtsilä Fleet Intelligence (Maritime Innovation Network)minorStrategic or Co-development PartnerMaritime Innovation Network (MarInn) launched to connect maritime startups with investors, accelerators, mentors, corporates, and service providers. Platform soft launched with contributions from Wärtsilä, Maersk Growth, and Motion Ventures. Full networking capabilities scheduled for Q1-Q2 2026.
• China Shipbuilding Industry Corporation (广船国际)coreStrategic or Co-development PartnerWärtsilä supplying 4 units of 10V31 main generating sets with SCR systems for Allseas semi-submersible heavy transport vessel project. Project for ultra-large offshore equipment transport with efficient low-emission power.
• Huanghai Shipyard (黄海船厂)coreStrategic or Co-development PartnerWärtsilä supplying W25 dual-fuel engines for 7800DWT ammonia fuel general cargo vessel. Engine can flexibly switch between ammonia and marine gas oil modes for greenhouse gas emission reduction.
• Nantong CIMC SOE (南通中集太平洋)minorStrategic or Co-development PartnerLetter of intent signed for future green equipment cooperation at Marintec China 2025.
• Shanghai Shibaco Engineering Services (上海思佰科)minorStrategic or Co-development PartnerCooperation意向 signed to jointly explore green upgrade pathways in maritime services sector.
• Ovinto (欧迅诺)coreStrategic or Co-development PartnerSigned 2+2+2 7200kW multi-purpose workboat propeller supply agreement. Propulsion system improves vessel operational response and energy efficiency.
• Honghua Group (宏华集团)coreStrategic or Co-development PartnerPower train cooperation for 90-meter wind power O&M vessel including engines, propellers, and full electric propulsion system, providing reliable support for offshore wind operations.
• Shanghai Maritime University (上海海事大学)coreStrategic or Co-development PartnerDeep school-enterprise collaboration since 11 years with scholarship program for outstanding teachers and students. Cooperation focuses on talent cultivation and industry transformation supporting green shipping. Wärtsilä China President Wang Qin appointed visiting professor.
• China Shipbuilding Industry Association (CANSI)coreStrategic or Co-development PartnerRoger Holm met with CANSI to discuss global shipbuilding trends, green fuel innovation, industry risk prevention. Broad consensus reached on strengthening cooperation for maritime decarbonization.

Scale indicators6 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Kongsberg Maritime: Kongsberg Maritime offers integrated ship systems, automation, dynamic positioning, and digital fleet solutions. It directly overlaps with Wärtsilä's propulsion control systems, EcoControl, and fleet optimization software (FOS, Navi-Planner).
• Rolls-Royce Power Systems (mtu): Rolls-Royce's mtu brand manufactures diesel and gas engines for marine propulsion, yachts, and power generation. It directly overlaps Wärtsilä in ferries, superyachts, and naval applications, including the same Molslinijen electric ferry programs and LNG-fueled cruise propulsion.
• Caterpillar Marine Power: Caterpillar supplies marine engines, propulsion, and generator sets across commercial and offshore segments. It competes with Wärtsilä on diesel and dual-fuel engine platforms and overlaps in workboats, offshore vessels, and naval/government markets.
• ABB Marine: ABB provides electric propulsion, automation, and digital systems for ships and ports. It competes directly with Wärtsilä in hybrid and electric vessel propulsion (ferries, offshore vessels) and is a key technology alternative for shipbuilders specifying electric drivetrains.
• MAN Energy Solutions: MAN Energy Solutions is Wärtsilä's closest direct competitor in large marine engines (two-stroke and four-stroke) and also serves the power generation market. Both companies supply dual-fuel engines (LNG, methanol) for merchant shipping and compete head-to-head on newbuild propulsion.
• Yanmar: Yanmar manufactures marine diesel engines, propulsion systems, and increasingly alternative-fuel powertrains. It competes with Wärtsilä in smaller commercial marine engines and is expanding into hydrogen and dual-fuel solutions, particularly in Asian markets.

Broad incumbents

• Cummins: Cummins produces diesel and gas engines, generator sets, and power systems across marine, rail, industrial, and data center applications. It overlaps with Wärtsilä in BESS-adjacent power systems and mid-size marine engines for commercial vessels.
• Mitsubishi Power: Mitsubishi Power manufactures gas turbines and provides utility-scale power generation solutions. As a broad incumbent in the energy market, it competes with Wärtsilä Energy's flexible gas engine plants and BESS offerings for utility and industrial customers.
• GE Vernova: GE Vernova is a broad power generation incumbent producing gas turbines, grid solutions, and increasingly BESS. It competes with Wärtsilä Energy on utility-scale flexible generation and grid-scale battery storage deployments globally.

Emerging players

• Wabtec: Wabtec provides the 58MW automatic charging system for Wärtsilä's Molslinijen electric ferries, positioning it as an emerging player in high-power marine electrification and rail-adjacent power electronics. It represents a complementary but increasingly competitive supplier in electric vessel ecosystems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/wartsilacorp
• Facebookfacebook.com/wartsila
• LinkedInlinkedin.com/company/wartsila

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries4 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 Wärtsilä