4301 N Cliff Ave
Sioux Falls, SD 57104



Griffan Callahan - Sioux Falls, SD 6056795001
Dar Ellis - Sioux Falls, SD 6059418333
Seth Provost - Sioux Fall, SD 6059063034
Chad Casanova - Aberdeen, SD 6053800180
Jarod Heinz - Aberdeen, SD 6052284434
Peggy Wolf - Rapid City, SD 6054304580

DMI traces its roots back to the J.L. Healy Construction Company, which incorporated in South Dakota in 1932. For 57 years, the company concentrated on highway construction and utility work within the Midwest. In 1982, Pat Healy, J.L’s son and the company’s CEO, formed the equipment distributorship that is now known as Diesel Machinery, Inc. (DMI). The construction company was sold in 1989 as development of the equipment distributorship advanced.

Dan Healy, Pat’s son, now directs the operations of DMI as president. Dan started with the company in 1989 and has held various positions of increasing responsibility. With the help of Dan Rude, general manager, and many other long-term employees, DMI continues to stay focused on achieving its mission.

View All Members