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Nebraska, Iowa locations expand Summit Contracting’s service area, product lines

PLATTE, S.D. (Nov. 29, 2023) – Summit Contracting, the South Dakota-based leader in construction of farm and grain systems, has signed a purchase agreement with Nebraska-based Petersen Ag Systems, the companies announced today. Summit Contracting will take ownership on Jan. 1, 2024.

The union expands Summit Contracting’s footprint with Petersen Ag System’s current locations in Norfolk and Osmond, Nebraska, and Onawa, Iowa.

“Petersen Ag Systems is a perfect match for Summit Contracting, not only in its reputation for quality products and services but also in terms of company values,” said Summit Contracting CEO Tyler Samuelson. “We’re both focused on building strong relationships with customers, building strong relationships within our own teams, and building quality farm structures that last for generations.”

Petersen Ag Systems will undergo a name change to Summit Contracting.

Established in 1937, Petersen Ag Systems has a proud legacy in Nebraska and Iowa. Petersen Ag Systems President Henry Aschoff believes Summit Contracting will build on that legacy, which is one reason why he felt comfortable with the sale.

From left: Summit Contracting President Jerad Hutchens, Petersen Ag Systems President Henry Aschoff and wife Gloria Aschoff and Summit Contracting CEO Tyler Samuelson.

“We have found a partner who shares our dedication to customer satisfaction and high-quality service,” Aschoff said. “Like Petersen Ag Systems, they are a family-oriented business that believes in the happiness and well-being of their team, which directly translates to better service for our customers. I am confident that Summit Contracting will not only uphold but also enhance the standards and values our customers and employees have come to expect from us.”

Since its founding in Platte, S.D. in 2009, Summit Contracting has grown to include locations in Brookings and Pierre, SD. as well as Seward, NE. and Sioux Center, IA. With the union, they will have new capabilities in products including seed treaters and center-pivot irrigation.

“We’re committed to providing the same quality in products and services that Petersen Ag Systems’ customers have come to expect,” Samuelson said. “This is a new chapter for Summit Contracting and Petersen Ag Systems. I’m excited about the opportunities this creates for our new and current employees, our customers, and the company as a whole.”

About Petersen Ag Systems

Built upon a legacy of service and reliability, Petersen Ag Systems has been faithfully serving their customers with the best service and quality products for many years.

The business was founded 1937 as LF Petersen Trucking by Loyal Petersen in Osmond, Nebraska. His son Gerald joined the company, and it became Petersen & Son, Inc. Robert Steele and James Fritz purchased the business in 1993, renaming it Petersen Agri Sales, Inc. and expanded the business to include a location in Norfolk, Nebraska in 1997. Henry Aschoff and Keith Wiehn took ownership in 2000, maintaining the trusted Petersen name as Petersen Ag Systems, Inc. Under their direction, the company further expanded to include a location in Onawa, Iowa. In January 2021, Henry Aschoff became the sole owner.

Petersen Ag Systems, Inc. continues their promise of service, reliability and quality.

About Summit Contracting

Founded in 2009, by Tyler and Katy Samuelson, Summit Contracting is a full-service on-farm construction company with specialized crews and support staff who focus on their area of expertise. They specialize in building premium grain systems, post-frame and metal buildings, and livestock confinements. From beginning the project in drafting/estimating to self-performing and managing each of our projects through completion, it is our goal to build lasting relationships with our customers and provide them with quality products they can be proud of for generations. Dedicated every day from dawn to dusk, Summit Contracting strives to emulate the farmer’s work ethic in every project, no matter how big or how small. The Future of Ag is Building. To learn more about Summit Contracting visit


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Phone: 605.337.2841