RSIME has a wide array of customers including:

• Archer Daniels Midlands
• ARESCO
• American Hydraulics
• Bunge
• Canadian National Railway
• Cargill
• Certified Transmission
• Concrete Equipment Company
• DBI
• Hughes
• Insul 8
• Irwin Tool Company
• Jebro
• Koch Nitrogen
• Kohlberg Pioneer
• Metropolitan Utilities District - Omaha
• Midwest Lysene
• National Railway
• Nebraska Public Power District
• Omaha Public Power District
• RAMM Industrial
• Sioux City Steam
• Union Pacific
• U.S. Coast Guard
• Valmont
• Walling Water Management
• Well's Blue Bunny
• Young's Welding