Midwestern Mechanical is a 100% employee-owned mechanical contracting firm, founded in 1983 in Larchwood, Iowa. The company relocated its headquarters to Sioux Falls, South Dakota, in 1992 and now operates across South Dakota, Iowa, Minnesota, and Nebraska, with additional offices in Spencer, Sioux City, Rapid City, Hot Springs, and Larchwood.
The firm provides plumbing, heating, ventilation, air conditioning (HVAC), and fire protection services for both residential and commercial customers. It is the largest non-union mechanical contractor in its region and employs over 300 employee-owners, each of whom holds an ownership stake in the business.
Midwestern Mechanical operates South Dakota's second-largest apprenticeship program, reflecting its investment in workforce development in the mechanical trades. The company states a commitment to treating people right, doing quality work, and building something that lasts.






