Associate Partners


Progress Rail Services Corporation, a Caterpillar company, is one of the largest integrated and diversified suppliers of railroad and transit system products and services worldwide. Since its acquisition by Caterpillar Inc. in 2006, Progress Rail has used the Caterpillar international footprint to gain quick and widespread notice and approval across the globe. Product technology, reliability and durability, along with legendary aftermarket parts and service support, have been our keys to success. Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines and industrial gas turbines. The technology and world reach of Caterpillar, combined with the service standard and historical reliability of Progress Rail, ensures our products and services make a growing impact on the world rail industry.

With our acquisition of Electro-Motive Diesel (EMD), Progress Rail is the world’s largest builder of diesel-electric locomotives for all commercial railroad applications including freight, intercity passenger, commuter, switching, industrial and mining. EMD is also a global provider of diesel power engines for marine propulsion, offshore and land based oil well drilling rigs and stationary power generation. Electro-Motive is the only diesel engine manufacturer of its size to have produced more than 70,000 engines. This success stems from product reliability, serviceability, load acceptance capability, low operating costs and ease of maintenance with standardized components.

For more than half a century, Electro-Motive locomotives have hauled freight and passengers, powered ships, and generated electricity for over 100 countries around the globe. Our products are built to last and outperform the competition. EMD products have performed in nearly every imaginable condition – from the sands of the Sahara, to the heights of the Andes, to the demanding grades of the Powder River Basin. With that performance, we’ve not only helped our customers achieve their goals, but we’ve also earned a reputation for quality, service and innovation.

Progress Rail engages in a lifelong relationship with customers and offers a complete line of value-added services to enhance the performance of our products. The equipment management and maintenance services set industry standards for service excellence. Through technological advancements and customer-focused solutions, our customers achieve new levels of availability, reliability and asset utilization. Listening to and supporting customers, pursuing continuous improvement, and building on a reputation for manufacturing excellence, we look forward to a future of innovation and service to the fast-changing global railroad and power products industries.


Electro-Motive (also known as EMD) designs, builds, maintains and services a full range of locomotives, including freight, passenger, mining, and switching locomotives. EMD’s locomotives carry the Electro-Motive brand and are branded separately from Cat offerings, having a direct sales relationship to customers.