Cutting-Edge Engine, DRIVELINE & Battery Testing Specialists

Excel Engineering is your premier Powertrain Testing resource.

We provide the trusted data and development support that global original equipment manufacturers (OEMs) rely on. Our innovative engineers are ready to help you overcome your toughest challenges. *ISO 17025 – EPA Certified – CARB Approved*

Work With Us

Explore Our Full Range of  Testing Solutions

Engine & Aftertreatment

Optimize engine and EATS performance, reduce emissions, and conduct 40CFR1065 certification testing

Engine Development

Drivetrain
Testing

Test transmissions, EDMs, axles, e-axles, e-motors, and more, ensuring efficiency durability, and performance

Powertrain Testing

High-Voltage Battery Systems

Verify safety and high performance for high-voltage mobility batteries & energy storage systems (BESS)

Battery Testing

Hydrogen & Fuel Cell Testing

Accelerate hydrogen engine and fuel cell development with our highly specialized testing services

Hydrogen Testing

Noise, Vibration & Harshness (NVH)

Ensure comfort and durability in your vehicle chassis and components by testing vehicles, systems and sub-systems

NVH Testing

Chassis Dynamometer

Gather accurate, repeatable data on vehicle performance, emissions, and fuel economy using our growing capabilities •CFR1066 •MPGe •Batt. SOH & SOC •Part 86

Dyno Testing

Additional Services

Solve your unique needs with our test stand fabrication, custom fuel blends, benchmarking, in-use testing, consulting services & more

Custom Solutions

Committed to Sustainability

Learn how we’re actively striving to build a better, more sustainable tomorrow

Environmental Solutions

Engineering Solutions Is Our Culture. Efficient Testing Is Your Benefit.

Excel Engineering has spent nearly 25 years supporting the world’s largest and smallest OEMs. We use that experience to deliver the highest-quality, most cost-effective propulsion system testing and engineering solutions available.

Here’s why our customers choose us:

About excel engineering

Complete Flexibility

Our team is powertrain agnostic. That means we’ll test anything that moves on a vehicle or generates power — batteries, fuel cells, hydrogen engines, drivelines, and more.

Unparalleled Value

We assemble our own state-of-the-art testing cells and supporting equipment. This keeps costs down and efficiency high. The savings are passed on to you, and ensure your testing uptime is maximized, improving schedules and budgets.

Environmental Stewardship

Sustainability and efficiency are in our DNA. We prioritize environmentally responsible practices across our facilities while empowering customers to reach their goals through innovative, efficient solutions.