Committed To Service With Integrity

Our family of companies is eager to serve our customer needs. We’re committed to business relationships hallmarked with integrity, reliability, and responsiveness that’s felt throughout our portfolio.

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Water Management

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Water management solutions company headquartered in Willmar, Minnesota, with locations throughout the United States. Serving agricultural, residential, stormwater, and onsite market segments.  Our values of Relationships, Hard work, Integrity, and Humility are the foundation of who we are.

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Construction & Materials

Duininck Construction & Materials

Duininck's construction and materials sector operates across three divisions: Concrete, Golf, and Heavy Civil. Our Concrete business is headquartered in Willmar, Minnesota, serving the central Minnesota market with quality aggregates, ready mix, and construction supply products. Duininck Golf is headquartered in Delano, Minnesota, serving customers nationally with new golf course construction, renovation, and irrigation services. Our Heavy Civil work spans public works, government, commercial, and residential markets in Minnesota and Texas, with capabilities that include aggregate materials, grading, paving, engineering, site preparation, and underground utilities.

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Real Estate

Hart Ranch Golf

Voted the #1 Public Golf Course in South Dakota by Golfweek Magazine. Nestled in the foothills of the Black Hills, Hart Ranch Golf Club offers a challenging and fun golf experience with service and course conditions that are consistently Best In Class.

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Since 1983, Hart Ranch Development Company has developed and sold ranchette property, the Hart Ranch Campground, and 150+ residential lots that surround Hart Ranch Golf Club.  The company also owns and operates the water and sewer system that services the Hart Ranch Valley.

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Duininck Development primarily holds Waterview Business Park – approximately 25 acres of commercial and multi-family sites on the south side of Willmar, Minnesota. The sites are stubbed for city sewer and water. To maximize the use of available sites, stormwater requirements are incorporated into the established regional ponds.

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