What WinGD does

WinGD (Winterthur Gas & Diesel) is a Swiss marine power company founded in 1895 (heritage dating to the first Sulzer engine in 1898) and headquartered in Winterthur, Switzerland. The company designs and develops low-speed two-stroke diesel and dual-fuel engines for merchant vessels with directly driven propellers, covering bore sizes from X52 to X92. Its flagship X-DF dual-fuel platform supports operation on LNG, ammonia, methanol, ethanol, and LPG alongside conventional fuels, with proprietary X-DF2.0 enhancements (iCER for exhaust gas recirculation and methane-slip reduction, VCR for variable compression ratio) and the high-pressure X-DF-HP variant for ultra-large container vessels. Supporting the engine portfolio is an ecosystem of complementary technologies: WiDE digital-twin-based performance monitoring (200+ vessels subscribed), X-EL hybrid energy management, iSCR on-engine NOx abatement, EEXI compliance software, retrofit kits for fuel conversion, Global Service with Wärtsilä cooperation, training programs, and land-based two-stroke gensets (15–40+ MWe) for power generation.

WinGD has been a wholly-owned subsidiary of CSSC (China State Shipbuilding Corporation) since 2016. The company does not directly manufacture engines; instead it licenses engine designs to a network of builders including HD Hyundai Heavy Industries, Yuchai Marine Power, CSSC Engine Co, and Hudong Heavy Machinery. Revenue streams comprise design licensing and engineering support, original spare parts for the installed base, long-term service agreements (e.g., 15-year OPearl LNG deal covering 14 vessels), digital subscriptions (WiDE), and hybrid integration services (X-EL). Named customers span container shipping (Maersk), dry bulk (CMB.TECH, Shandong Shipping, Vale), tankers (AET, Trafigura), gas carriers (Exmar, KSS Line, OPearl, Tianjin Southwest Maritime), PCTCs (NYK Line), and hybrid integration projects with NYK. Pricing is project-specific, embedded in newbuild or retrofit contracts.

WinGD is positioned as the first-mover in alternative-fuel two-stroke propulsion, with the X-DF-A ammonia engine achieving world-first Type Approval and Factory Acceptance Testing in 2026 and the first commercial installation on EXMAR's LPG/ammonia carrier in 2025. The company employs 251–500 people across its Winterthur R&D headquarters (ERIC facility with full-scale test engine RTX-6) and a Shanghai Global Test Centre (with CSPI), and maintains an active global presence at maritime industry events (SMM, Marintec China) and through direct sales engagement with ship owners and shipyards.

Name

WinGD

Legal name

WinGD Ltd.

Website

https://wingd.com

Company type

Private

Founded year

1895

Operating status

Operating

Headcount range

251–500 employees

Short description

WinGD is a Swiss marine power company, wholly owned by CSSC since 2016, that designs low-speed two-stroke diesel and dual-fuel engines (LNG, ammonia, methanol, ethanol, LPG) for merchant vessels worldwide, licensing designs to a global engine builder network.

Ownership category

akta.pro rank

Product category

Marine Propulsion Engines

NAICS

Ship Building and Repairing (336611)

SIC

Engines & Turbines (3510)

akta.pro primary industry

Marine Diesel & Dual-Fuel Engines (IMAJAHAA)

akta.pro secondary industries

Marine Hybrid & Electric Propulsion Systems (IMAJAHAC), Propulsion, Power & Energy Systems Design (Diesel, Hybrid, Electric, Alternative Fuels) (IMAJAGAE), Marine Generators, Alternators & Power Electronics (Gen-sets, VFDs, converters) (IMAJAHAI)

Keywords

• Marine diesel engines
• Dual-fuel engines
• Marine propulsion
• Low-speed engines
• Engine technology licensing

Headquarters

HQ city

Winterthur

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Marine Engine Sales: WinGD develops and licenses its engine designs to shipyards and ship owners through a network of licensed engine builders. Revenue comes from engine design licensing, technical specifications, and ongoing engineering support.
2. Spare Parts: Supply of original WinGD spare parts for engines in service, maintaining the global installed base of WinGD-powered vessels.
3. Service Agreements: Long-term service contracts including maintenance, technical support, performance monitoring, and crew training through WinGD's Global Service program. Example: 15-year agreement with OPearl covering 14 LNG carriers.
4. WiDE Digital Subscription: Subscription-based digital monitoring and optimization service for WinGD engines, providing real-time performance analysis and remote support.
5. Hybrid Energy Systems Integration: Engineering and integration services for hybrid power solutions including shaft generators, batteries, and energy management systems.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

WinGD designs, develops, and licenses low-speed two-stroke marine engines (diesel and dual-fuel) for merchant vessels, available in bore sizes X52 through X92. The X-DF dual-fuel platform enables operation on LNG, ammonia, methanol, ethanol, and LPG alongside conventional fuels, complemented by the WiDE digital monitoring service, X-EL hybrid energy management, and a Global Service support network covering maintenance, training, and spare parts.

Product overview

WinGD is a Swiss marine power company that develops low-speed two-stroke marine engines and integrated energy solutions for merchant vessels and power generation. The core product portfolio centers on the X-DF Dual-Fuel engine series capable of operating on multiple fuel types (LNG, ammonia, methanol, ethanol, LPG) alongside traditional diesel engines. Supporting the engine portfolio is a comprehensive ecosystem of digital and efficiency technologies including WiDE (digital twin-based performance monitoring), X-EL Energy Management (hybrid power system integration), X-DF2.0 technologies (iCER for emissions control and VCR for compression optimization), iSCR (integrated NOx abatement), EEXI compliance solutions, and retrofit/upgrades for existing engines. The company also offers Global Service support, training programs, and powerplant genset solutions for land-based applications.

Differentiator

Problem solved

Functional benefit

Brands

• WiDE: WinGD Integrated Digital Expert - a comprehensive performance monitoring system supporting crew on vessels and on shore with actionable insights from engine and ship data.
• X-EL

Products and services

• X-DF Dual-Fuel Engine Series Low-speed two-stroke dual-fuel marine engines capable of operating on LNG, methanol, ammonia, ethanol, and LPG alongside conventional diesel fuel, available in multiple bore sizes for merchant vessel applications.
• X-DF-A Ammonia Engines Carbon-free ammonia-fueled dual-fuel engines enabling ship owners to use ammonia as a main engine fuel, available in X52, X62, X72, and X82 bore sizes across gas carrier, bulk carrier, tanker, and container ship segments.
• X-DF-M/E Methanol and Ethanol Engines Dual-fuel engines enabling operators to use carbon-neutral methanol and/or ethanol individually or as a blend, available for order with deliveries from 2025 (methanol) and 2027 (ethanol).
• X-DF-P LPG Engines Fuel-flexible dual-fuel engines for LPG and ammonia carriers allowing operators to use LPG cargoes as engine fuel, based on high-pressure injection concept.
• X-DF-HP High-Pressure LNG Engine High-pressure dual-fuel LNG engine designed for ultra-large container vessels (ULCVs) in X82 and X92 bore sizes, built on the proven X92-B platform with superior dual-fuel efficiency, lowest methane slip, and Tier III compliance.
• X-Engines (Diesel) Single-fuel diesel-powered low-speed two-stroke engines for merchant vessels with directly driven propellers, available in X52, X62, X72, X82, and X92 bore sizes.
• WiDE (WinGD Integrated Digital Expert) Remote engine optimization, maintenance advisory, and troubleshooting support system using a digital twin of each engine; compares real-time performance with expected performance to identify optimization opportunities and provide advance warning of faults.
• X-EL Energy Management Holistic power system design and management solution integrating hybrid technologies such as shaft generators, batteries, power converters, shore power interfaces, solar/wind generation, and fuel cells, using digital twin technology to configure and manage optimal hybrid power systems.
• Powerplant Solutions Two-stroke genset solutions for land-based power generation using ammonia, methanol, LNG, or diesel fuels, with modular power plant approach delivering 15MWe to over 40MWe per genset and 49–53% efficiency across loads from 20% to 100%.
• Global Service by WinGD Comprehensive lifecycle engine support including maintenance, technical support, performance monitoring, crew training, and original spare parts, backed by around-the-clock access to WinGD experts worldwide.
• Training Training solutions including theoretical engine training, advanced training, specialized training, and digital training with detailed simulations of engines and control systems for crew capability building.
• Retrofit Solutions One-stop-shop for fuel conversions and energy efficiency upgrades including LNG/methanol/ammonia dual-fuel injection retrofits, X-DF2.0 (iCER, VCR) upgrades, engine derating, X-EL retrofits, digital optimization, and engine control updates.

Quantifiable outcome

• Over 90% reduction in GHG emissions in ammonia mode compared to diesel mode
• +5 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature8 records

Partnerships

Twelve partnerships are on record, tiered core, strategic, key account, cooperative, founding and collaborative.

• CSSC (China State Shipbuilding Corporation)coreStrategic or Co-development PartnerCSSC became the sole shareholder of WinGD in 2016, providing closer access to Chinese shipyards, customers, and engineering partners while supporting faster product development and market penetration in the world's largest shipbuilding nation.
• HD Hyundai Heavy IndustriescoreTechnology or IntegrationHD Hyundai Heavy Industries' Engine & Machinery Business Unit built the first ammonia-fueled X-DF-A engine (X52DF-A) and conducted successful Type Approval Testing and Factory Acceptance Testing in South Korea.
• Yuchai Marine PowercoreTechnology or IntegrationYuchai Marine Power built the X52DF-A-1.0 ammonia engine with testing witnessed by China Classification Society, scheduled for installation on LPG/ammonia carriers.
• EnvisionstrategicStrategic or Co-development PartnerWinGD and Envision released a joint study showing green ammonia can achieve cost parity with conventional marine fuels, based on real engine performance data from China-Australia routes. Envision's Chifeng facility produces approximately 320,000 tonnes of green ammonia annually.
• OPearl LNG Ship Managementkey accountStrategic or Co-development Partner15-year long-term service agreement covering 14 LNG carrier vessels and their WinGD engines, providing comprehensive maintenance, technical support, performance monitoring, and crew training. OPearl was founded by China Merchant LNG, NYK LINE, and CNOOC.
• NYK LinestrategicStrategic or Co-development PartnerWinGD integrated hybrid energy systems into four LNG-fuelled PCTCs ordered by NYK Line, using 7X62DF-2.1 engines coupled with shaft generators, DC links, and battery systems managed by WinGD's Hybrid Control System.
• Wärtsilä ServicescooperativeImplementation/ SI/ Consulting PartnerWinGD and Wärtsilä clarified their customer support cooperation, with Wärtsilä providing service support for WinGD engines as part of the Global Service network.
• Global Ethanol Association (GEA)foundingStrategic or Co-development PartnerWinGD joined as a founding member of the Global Ethanol Association, contributing advanced multi-fuel engine technology to promote ethanol as a sustainable marine fuel.
• CMB.TECHkey accountStrategic or Co-development PartnerFour-way partnership to deliver ammonia engines for CMB.TECH fleet, including 10 bulkers with X72DF-A engines and a 210,000 dwt dry bulk carrier for testing under real commercial conditions.
• KSS LinecollaborativeStrategic or Co-development PartnerWinGD collaborates with KSS Line for ammonia-fuelled gas carriers, supporting Korean shipping company's decarbonization strategy.
• China Shipbuilding Power Engineering InstitutecoreTechnology or IntegrationCollaborative Global Test Centre in Shanghai comprising two full-scale test engines (RTX-7 and RTX-8) and sub-system test rigs for validating new fuels and technology development.
• Hudong-ZhonghuastrategicStrategic or Co-development PartnerWinGD collaborated with Hudong-Zhonghua to develop the Integrated Floating Storage Power Unit (iFSPU) solution combining X-DF genset with LNG storage and regasification equipment.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• MAN Energy Solutions: MAN Energy Solutions (formerly MAN B&W) is the global market leader in low-speed two-stroke marine engines and WinGD's most direct competitor. Both companies license engine designs to shipyards and supply dual-fuel propulsion for merchant vessels across the same fuel and vessel categories.
• Wärtsilä: Wärtsilä is a major marine engine and lifecycle service provider, focused primarily on four-stroke engines and dual-fuel platforms (including ammonia-ready Wärtsilä 25 Ammonia). It is the most relevant service-and-engine competitor to WinGD's installed base and Global Service offering.
• Rolls-Royce Power Systems (mtu): Rolls-Royce Power Systems (mtu) supplies high-speed and medium-speed marine engines, hybrid propulsion systems, and integrated power solutions. It directly competes with WinGD's X-EL energy management and hybrid offerings, particularly for naval, offshore, and specialized vessel applications.
• Hyundai Heavy Industries (HD Hyundai): HD Hyundai is both a WinGD licensed engine builder and a competitor through its own engine and machinery business. Its Engine & Machinery unit built the first X-DF-A ammonia engine for WinGD and is a strategic technology integration partner.
• Mitsubishi Heavy Industries Maritime Systems: Mitsubishi Heavy Industries produces low-speed marine engines (UEC series) and has its own dual-fuel development programs. It competes with WinGD in the merchant two-stroke engine market and supplies major Japanese shipyards including those building LNG carriers and bulkers.
• Yanmar Marine: Yanmar supplies marine engines and propulsion systems, including dual-fuel options, primarily for smaller commercial and offshore vessels. It is a WinGD-licensed engine builder and a competitor in adjacent marine engine segments where fuel-flexibility matters.

Broad incumbents

• Caterpillar Marine: Caterpillar supplies medium-speed marine engines and propulsion systems across commercial and offshore vessel segments. While not focused on low-speed two-stroke main engines, it competes for auxiliary propulsion, genset, and integrated power train business within the same shipyards and operators.
• Kongsberg Maritime: Kongsberg Maritime supplies integrated vessel systems including hybrid propulsion, energy management, and digital monitoring for marine applications. Its hybrid and digital offerings overlap with WinGD's X-EL and WiDE product lines for ship operators investing in energy efficiency.
• ABB Marine & Ports: ABB provides marine electric propulsion, power distribution, energy storage, and digital solutions for vessels. Its Azipod and onboard DC grid offerings overlap with WinGD's hybrid power and X-EL energy management in the marine electrification space.

Others

• CSSC Marine Power (parent affiliate): CSSC's marine power affiliates, including CSSC Engine Co and Hudong Heavy Machinery, are WinGD's primary licensed manufacturers and channel into the Chinese shipbuilding market. They represent both parent-related scale advantages and channel concentration risk.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCDT5TwWddPMamlVECLAM0KA
• LinkedInlinkedin.com/company/winterthur-gas-&-diesel-ltd-
• Xx.com/winterthurgd

Revenue estimate

Valuation estimate

Number of profiles

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 WinGD