Global market valuation was derived through revenue mapping and megawatt (MW) capacity installation analysis. The methodology included:
• Identification of 35+ key manufacturers across North America, Europe, Asia-Pacific, and Middle East & Africa, including Caterpillar Inc., Cummins Inc., Wärtsilä Corporation, MAN Energy Solutions, General Electric, Mitsubishi Heavy Industries, Kawasaki Heavy Industries, and emerging regional players
• Product mapping across natural gas, biogas, synthesis gas, and landfill gas engines, segmented by power output ranges and engine types (four-stroke, two-stroke, spark ignition, dual-fuel)
• Analysis of reported and modeled annual revenues specific to gas engine portfolios, excluding non-engine business segments such as diesel engines, turbines, or non-power equipment
• Coverage of manufacturers representing 75-80% of global market share in 2024
• Extrapolation using bottom-up (MW capacity installations × average selling price per MW by application and region) and top-down (manufacturer revenue validation against regional power generation statistics) approaches to derive segment-specific valuations for power generation, marine propulsion, oil & gas mechanical drive, and transportation applications