Our businesses and industries

Marine

Wärtsilä Marine is a global pioneer in power, propulsion, digital, and lifecycle solutions for the marine market. We develop industry-leading technologies, advancing maritime's transition to alternative fuels. We support building an end-to-end digital ecosystem where vessels and ports are connected.

Ultimately, Wärtsilä Marine is driving the shipping industry forward, towards a decarbonised and sustainable future – through our broad portfolio, which includes engines, propulsion systems, hybrid technologies, exhaust treatment, shaft line solutions, digital innovations, and integrated powertrain systems.

Our offering is underpinned by performance-based agreements, lifecycle solutions and upgrades, decarbonisation services, and an unrivalled global network of maritime expertise. This delivers the efficiency, reliability, safety, and environmental performance needed to support a safe and sustainable future for our customers, communities, and our planet.

Key figures in 2024:

Order intake: EUR 3,637 million
Net sales: EUR 3,053 million
Comparable operating result: EUR 360 million

Energy

The energy sector is undergoing a transformative shift as it works to decarbonise while continuing to deliver reliable and affordable energy to everyone – from homes to heavy industry. This transition presents tremendous opportunities for innovation and progress, and we are ready to lead the way.

Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector accelerate their decarbonisation journeys through our market-leading technologies and power-system expertise.

Our solutions include flexible engine power plants, energy-storage and optimisation technology, and services throughout the lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises 79 GW of delivered power-plant capacity in 180 countries around the world, and over 30% of our operating installed base is under service agreements.

Key figures in 2024

Order intake: EUR 2,238 million
Net Sales: EUR 1,897 million
Comparable operating result: EUR 269 million

The figures have been restated following the new segment structure as of 1 April 2025.

Energy Storage

Driving grid innovation globally, Wärtsilä Energy Storage combines cutting-edge technology with deep expertise to deliver the reliability and efficiency for a decarbonised energy future. Our portfolio includes high-performance hardware, intelligent controls and optimisation software, and full-service lifecycle support to deliver lasting value across the project lifespan.

From enhancing grid stability to enabling flexibility and operational efficiency, our utility-scale battery energy storage solutions are built for real-world performance. Trusted by top-tier utilities, developers, and system operators, Wärtsilä Energy Storage has a global footprint across 130+ sites—delivering the scale, safety, and reliability needed to power the energy transition.

Key figures in 2024

Order intake: EUR 1,128 million
Net Sales: EUR 794 million
Comparable operating result: EUR 33 million

The figures have been restated following the new segment structure as of 1 April 2025.

Wärtsilä Portfolio Business

Our Portfolio Business consists of business units which are run independently with the aim of accelerating performance improvement and unlocking value through divestments or other strategic alternatives. Currently Portfolio Business includes Gas Solutions and Water & Waste.

Gas Solutions is a market leader with innovative systems and lifecycle solutions for the gas value chain. Our main focus areas are the handling of gas in seaborne transport (storage, fuel, transfer and BOG management), gas to power, liquefaction and biogas solutions. We help our customers on their journey towards a sustainable future through a focus on lifecycle performance, innovation and digitalisation.

Water & Waste offers the widest portfolio of environmental solutions that meet all existing and anticipated regulations, including regulations for environmentally sensitive areas. We support our customers with a complete lifecycle offering to ensure the highest operational efficiency, compliance and enhanced environmental performance. Wärtsilä Water & Waste has developed a broad range of specialised and proven environmental products, such as Wastewater treatment (conventional biological sewage treatment plants and advanced membrane bioreactors), Ballast water management systems, Fresh Water generation (reverse osmosis plants and evaporators) and Vacuum toilets and vacuum collecting systems.

In 2025, Wärtsilä divested its Automation, Navigation & Control Systems business to Solix Group AB and Marine Electrical Systems business to VINCI Energies.

Our industries and financials

Marine and energy industries