Employers of South Dakota School of Mines and Technology co-op and intern students include (South Dakota employers in bold):
- Adams Thermal Systems
- American Technical
- Amesbury Group
- Anvil Corporation
- Arch Coal
- Archer Daniels Midland
- ATI Allvac
- ATK
- BAE Systems
- Barrick Gold
- BJ Services
- Black Butte Coal Company
- Black Hills National Forest
- Black Hills Power
- Bobcat
- BPI Technology
- Braun Intertec
- Cargill
- Cargill/Wilbur Chocolate
- Caterpillar
- City of Rapid City
- Crimson Fire
- Cyclonaire Corp.
- Dakota Gasification
- Daktronics
- Dow Chemical
- DRM,Inc.
- Eaton
- EchoStar Communications
- Emerson Process Management
- EPC Consultants
- EROS Data Center
- Esco Energy
- Excel Crushers
- Flint Hills Resources
- Freeport McMoRan/Phelps Dodge
- Garrison Diversion
- GCC Dacotah
- Geotechnical Services Inc.
- Goodrich Cargo Systems
- Granite Construction
- Greens Creek Mining Co.
- Hamilton Sundstrand
- Hazen Research
- Hermanson Egge Engineering
- Honda
- Huffman Engineering
- Hutchinson Technology
- IBM
- Imation Corp.
- Innovative Systems
- IR Bobcat
- Itasca County
- John Deere
- Kennecott Utah Copper
- Kiewit Mining
- KL Process Design Group
- L-3 Communications
- Lance Engineering
- Lloyd's Systems
- Lyondell Chemical - Equistar
- Mammoth Site
- McNally/Kiewit Tunneling
- McNeilus Company
- MEMSense
- Micron Technology
- Microsoft
- Midcontinent Communications
- Montana Dakota Utilities
- MtronPTI
- NASA
- NASA Jet Propulsion Laboratory
- National Radio Astronomy Observatory
- Newmont Mining
- Northern Natural Gas
- Nucor Steel
- Orthopedic Rehab Inc.
- Peabody Energy - North Antelope Mine
- POET
- Powder River Coal
- Pump Systems Inc.
- Qualcomm, Inc.
- Questar
- Rapid City Regional Hospital
- RESPEC
- Rio Tinto Energy America
- Robinson Nevada Mining Co.
- RPM & Associates
- Sanmina-SCI
- Scotchman Industries
- Simon Contractors
- South Dakota Department of Environment and Natural Resources
- South Dakota Department of Transportation
- Starmark Cabinetry
- Strathmore Minerals
- Structural Integrity
- Taggart Global
- Teichert
- Tessier's Inc.
- Texas Westmoreland Corp.
- Thunder Basin Coal Company
- Trane
- UPS
- United States Army Corps of Engineers
- United States Department of Agriculture
- United States Geological Survey
- US Gypsum
- Office of Senator John Thune
- USDA Forest Service
- Vishay Dale Electronics
- Washington Department of Transportation
- WISE (Washington Interns in Science and Engineering)
- WBI Holdings
- Wharf Resources
- Wilder Construction
