• Civil
  • Geotechnical
  • Surveying
  • Testing
  • Environmental

FMG, Inc., is a multi-discipline engineering consulting firm based in Rapid City, South Dakota. With roots tracing to 1894, our experienced and diverse group of professional engineers, geologists, licensed surveyors, materials specialists, environmental and earth scientists and support staff provide a complete package of services from the ground up for your next project.

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Civil Infrastructure

The backbone of nearly every project relies on solid civil engineering design. From an accurate site survey to design layout and utilities, a successful project begins with attention to detail with experienced professionals.


Industrial processes and facilities are the necessary core of economic development and growth. From natural resource mining, process facilities, through waste disposal, FMG has extensive experience throughout the U.S. and internationally.


Geotechnical engineering and environmental assessments, from due diligence to final design, span nearly every facet of economic development. If you are going to build, an analysis of the geotechnical and environmental site conditions is essential to success.


From the Powder River Basin coal deposits, geothermal well fields of the Baja Peninsula, and the wind swept high desert of New Mexico and beyond, FMG has participated in the development of 1000’s of Megawatts of energy development from conventional to renewables for over 30 years.

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Where FMG Works

From our offices in Western South Dakota, FMG has provided consulting services in western South Dakota for over a century and throughout the Western United States and internationally for over 35 years. While a good deal of our work is performed in the Mid and Intermountain West, the desire and ability to work beyond local market areas has built our expertise in a wide range of regional design and construction techniques and regulatory standards.

Map of where FMG works