Our businesses

Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector to 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 for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises of 79 GW delivered power plant capacity and over 130 energy storage systems in 180 countries around the world. Over 30% of our operating installed base is under service agreements.

Wärtsilä Energy's key figures in 2024:

• Order intake EUR 3,366 million
• Net sales EUR 2,690 million
• Comparable operating result EUR 302 million

Wärtsilä Marine is a global pioneer in power, propulsion, and lifecycle solutions for the marine market. We develop industry-leading technologies, advancing maritime's transition to new fuels. We support building an end-to-end digital ecosystem where all vessels and ports are connected. Ultimately, Wärtsilä Marine is driving the shipping industry forward on its journey towards a decarbonised and sustainable future through our broad portfolio of engines, propulsion systems, hybrid technology, exhaust treatment, shaft line solutions, and digital technologies, as well as integrated powertrain systems. Our offering, which is underpinned by our performance-based agreements, upgrades, lifecycle solutions, decarbonisation services, as well as an unrivalled global network of maritime expertise, delivers the efficiency, reliability, safety, and environmental performance needed to support a safe and sustainable future for our customers, our communities, and our planet. 

Wärtsilä Marine's key figures in 2024:

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

Wärtsilä 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, Water & Waste  and Marine Electrical Systems.

In July 2025, Wärtsilä announced that it had agreed to divest its Marine Electrical Systems business to VINCI Energies. Subject to approvals, the transaction is expected to be completed in the last quarter of 2025.

• Marine Electrical Systems is one of the leading system integrators, specialized on navy, complex vessels and large yachts. Our highly specialized and complex electrical systems integration competencies, connecting own equipment and equipment added by the yard into one electrical network, makes us unique on the market and are highly valued amongst our clients.
• 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.