Excel Engineering Employee Directory
Motor Vehicle ManufacturingIowa, United States51-200 Employees
Excel Engineering provides testing services for a broad range of powertrain technologies used in mobility and related industries. Headquartered in Diagonal, Iowa, the firm operates across three locations and maintains more than 40 engine testing cells that support a wide power range and include emissions testing aligned with federal requirements. Its programs cover traditional internal combustion powertrains as well as electric, hybrid, energy storage systems, motors, hydrogen and fuel cells, and driveline components. The company serves original equipment manufacturers and other developers needing validation and regulatory-compliance testing, including activity during new manufacturing ramp-ups. Electric mobility and energy storage testing represent a rapidly growing area, with capabilities for battery performance, cycling, environmental, and abuse testing, alongside regulatory work for EPA and CARB certifications. In January 2026, Fusion Capital Partners' FcPartners announced the acquisition of Excel Engineering, Inc.
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