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Develops and manufactures engines, propulsion systems and energy solutions for the decarbonisation of shipping and the energy sector

WÄ

Wärtsilä Oyj Abp

Helsinki (Headquarters) · VaasaNew on Amplifa

1834Founded
17,900Employees in 78 countries
EUR 6,219 millionNet sales 2025
199Locations worldwide
180Countries with energy installations

About Wärtsilä

Wärtsilä is a Finnish technology company headquartered in Helsinki that manufactures engines, power plants and marine systems and provides lifecycle services for them. The portfolio includes multi-fuel and dual-fuel engines (including Wärtsilä 31, 50DF, 31DF), flexible engine power plants for grid stabilisation, energy storage systems, ship propulsion, propellers, thrusters, exhaust gas cleaning systems as well as ballast water management and Onboard Carbon Capture. Engines can be operated flexibly on low-carbon and carbon-free fuels such as ammonia, methanol, hydrogen and biofuels. Services include Lifecycle Agreements, data-based maintenance planning (DMP), the predictive maintenance diagnostics solution Expert Insight and 24/7 operational support via global Expertise Centres. Two thirds of the world's large vessels use Wärtsilä technologies; the company employs around 17,900 people in 78 countries and is listed on Nasdaq Helsinki. Core markets are shipping (cruise, ferry, merchant vessels, navy, offshore) as well as power generation in South and Southeast Asia, the Middle East, Africa and Latin America.

Site
Helsinki
Processes
Lifecycle Agreements / Lifecycle Services, Data-driven Maintenance Planning, Expert Insight (predictive maintenance), 24/7 Operational Support, Engine power plants (flexible grid balancing), Energy Storage Systems (Valo Energy Storage, 50% Wärtsilä), Ship propulsion, propulsion systems, electrification, Onboard Carbon Capture
Materials
Wärtsilä 31DF Dual-Fuel Engine, Wärtsilä 50DF Dual-Fuel Engine, LNG/Multi-fuel technology, Battery energy storage systems (Quantum/GEMS)
Founded
1834
Employees
17900
Industries
Shipping/Marine (cruise, ferry, merchant vessels, navy, offshore), Power generation/Power plants, Oil & Gas (services), Shipping/Marine (cruise, ferry, merchant vessels, navy, tugs, yachts), Energy/Generation (engine power plants, energy storage, grid stability)
  1. 01

    Engineering and engine design

  2. 02

    Manufacturing of engines and components

  3. 03

    System integration (propulsion, electrification, exhaust gas cleaning)

  4. 04

    Installation and commissioning

  5. 05

    Lifecycle services including maintenance and digital services

Technologies and Manufacturing

31DF

Wärtsilä 31DF Dual-Fuel Engine

Dual-fuel engine with high fuel efficiency, in service among others on the ferry Viking Glory.

50DF

Wärtsilä 50DF Dual-Fuel Engine

Four-engine configuration of the LNG ferry Viking Grace including LNGPac fuel supply system.

LNG

LNG/Multi-fuel technology

Engines run flexibly on gas, liquid fuels and renewable fuels such as biogas and biofuel.

BESS

Battery energy storage systems (Quantum/GEMS)

Storage systems for grid stabilisation and integration of renewable energies, marketed via Valo Energy Storage (50% Wärtsilä).

Locations

Helsinki Campus

FI

Headquarters and administration

Vaasa

FI

Factory site / billing address, historic engine plant

Industries

Shipping/Marine (cruise, ferry, merchant vessels, navy, offshore)Power generation/Power plantsOil & Gas (services)Shipping/Marine (cruise, ferry, merchant vessels, navy, tugs, yachts)Energy/Generation (engine power plants, energy storage, grid stability)

Additional services

Lifecycle Agreements / Lifecycle ServicesData-driven Maintenance PlanningExpert Insight (predictive maintenance)24/7 Operational SupportEngine power plants (flexible grid balancing)Energy Storage Systems (Valo Energy Storage, 50% Wärtsilä)Ship propulsion, propulsion systems, electrificationOnboard Carbon CaptureShip DesignScrubbers, exhaust gas cleaning, ballast water managementTurbocharger services, underwater services, spare parts (OEM)

Reference customers

Viking LineSolvangAqualectra (Curaçao)GIGA Storage BVUnited Power (Bangladesh)Clearway EnergySapura Brazil

History

  1. 1834

    Founding as a sawmill in Tohmajärvi (12 April)

  2. 1898

    Renamed Wärtsilä Ab

  3. 1907

    Re-founded as Ab Wärtsilä Oy

  4. 1935

    Acquisition of the majority stake in Kone- ja Siltarakennus Oy including the Hietalahti shipyard in Helsinki and the Crichton-Vulcan shipyard in Turku

  5. 1938

    Licence agreement with Friedrich Krupp Germania Werft AG, start of the diesel era

  6. 1942

    First diesel engine in Turku

  7. 1959

    First in-house developed diesel engine, Wärtsilä Vasa 14

  8. 1978

    Acquisition of 51% of the NOHAB diesel business (Sweden)

  9. 1986

    Pooling of marine resources with Valmet, founding of Wärtsilä Marine Oy

  10. 1990

    Merger with Lohja, renamed Metra Oy Ab

  11. 1997

    Merger of Wärtsilä Diesel, New Sulzer Diesel and Diesel Ricerche to form Wärtsilä NSD Corporation

  12. 2000

    Metra becomes Wärtsilä again

  13. 2002

    Acquisition of John Crane-Lips

  14. 2012

    Acquisition of Hamworthy

  15. 2014

    Acquisition of L-3 Marine Systems International

  16. 2016

    Spin-off of the two-stroke engine portfolio as WinGD; acquisition of Greensmith Energy Management Systems

  17. 2020

    Plans for hybrid engine solutions for Finnlines

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