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Peaker Services, Inc. (PSI) was founded in 1971 in a two-car garage in Belleville, Michigan to repair and maintain EMD diesel generators or "Peakers" as they are known in the utility industry. As demand for PSI's services grew, the company built and moved into larger quarters next to the two-car garage. After having to move the basketball court next to the garage, the company moved to Brighton, Michigan, approximately 30 minutes northwest of Detroit. In 1978, PSI built its "Green Oak No. 1" plant and office on a rural 10-acre site in Brighton. The facility was then tripled in size in 1984 to the current 45,000 sq. ft., including additonal remanufacturing and warehouse space. In 2006, PSI added the New Castle, Delaware location to service PSI's expanding East Coast market.

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Current PSI facilities, designed to meet the needs of today's customers, include:
  • arc and inert gas welding
  • plasma cutting
  • soda blasting and paint bay
  • comprehensive testing equipment
  • comprehensive rebuilding equipment
  • specially designed outdoor test cell for extended load testing of rebuilt and repaired diesel engines
As PSI continues to grow to meet the needs of its customers, we will continue to provide the service, reliability and value that have made us a trusted name in the industry.
  EMD Engine Services
As a chief supplier to railroads, power generation and marine companies, PSI is recognized as the quality leader in rebuilding and repairing EMD diesel engines and related equipment.
Electrical System Services
PSI staff designs and installs custom control systems. Peaker Services is a Woodward Governor Company authorized dealer and independent service facility. We are also dealers for EnDyn, DYNALCO and Testo.
Quality Systems
PSI is ISO 9001 certified ISO 9000 Certification Logoand we were one of the first locomotive engine rebuilders to be certified under AAR M1003.
Naturally, we meet and adhere to all federal, state and local environmental standards.
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