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Thompson Knows

Electrical Contracting

Electrical Contractor exceeding expectations since 1933.

Thompson is an electrical contractor with offices in Sioux Falls, South Dakota, Sioux City, Iowa, and Omaha, Nebraska. Since 1933 our experienced electricians have serviced customers within the residential, commercial, industrial, healthcare, education, government, professional, and low voltage electrical needs. 

Thompson is a forward-thinking innovative leader in the industry with the ability to revolutionize its business model. We utilize technology in every aspect of our business from our electricians to estimating, generators, electric vehicle (EV) charging, arc flash risk assessment, infrared thermal imaging, 3D, CAD, BIM/Revit, electrical preventive maintenance (EPM), Solar, Automation and Controls, Robotics, design-build, prefabrication, life safety, and security to project management and field supervision.

Whether your project is a new installation, remodel, school or industrial plant expansion, our Electrical Contracting division’s experienced staff is eager to ensure that your project will be a success.

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Committed to Safety

Safety is an ongoing journey, not a destination. It is our intent to provide safety training and a safe work environment for all of our employees.

Our RFR (Recordable Frequency Rate) is 1.81 well below the national average of 3.9 for 2019.

At Thompson safety is a full-time endeavor and should be practiced at all times. Twenty-Five percent 25% of our field employees have completed OSHA 30 training, along with numerous other safety training required by Thompson and weekly toolbox talks.

Our safety program is tailored for each job site. When additional training is necessary we ensure that the appropriate training is provided to meet each requirement.

We had a surprise inspection from OSHA today and passed with flying colors. (No Violations) That is something that is very rare, but shows the quality of work we are all doing here.
― Engineering Director - St. Lukes John Green