The following is a list of notable clients for whom ORION Engineering Company, Inc. has provided quality engineering services:

• Consumers Energy
• Cytec Industries, Inc.
• Daimler-Chrylser Corporation
• Delphi Automotive Systems
• Ford Motor Company
• General Motors Corporation
• Georgia Pacific
• Harvard Industries
• Honda Transmission Manufacturing of America, Inc.
• ITT Hancock-Automotive
• Kellogg Company
• Macsteel
• Michigan State University
• Pfizer Corporation
• State of Michigan
• Western Michigan University
• Visteon