JE Dunn Construction delivered a curved rammed-earth structure, 3D modeling, off-site manufacturing, and a two-acre walkable living roof with over 140,000 native plant plugs for the Theodore Roosevelt Presidential Library project in Medora.

JE Dunn Construction is a family- and employee-owned company and the eighth-largest domestic general contractor in the United States, with 27 offices nationwide. We provide construction management, design-build, and integrated construction services across a wide range of markets. From design and preconstruction through closeout, we work in close partnership with our clients to deliver safe, high-quality projects nationwide. Building authentic partnerships and a shared commitment to doing the right thing guides our work. John Ernest (Ernie) Dunn founded JE Dunn Construction Company in Kansas City, Missouri, in 1924. His philosophy was simple: Treat people fairly and offer clients quality service at a fair price. His vision and approach to conducting business still influence our people and our work today. Since our founding, JE Dunn has grown into a trusted partner with offices in 18 states. Our longevity and continued growth are a direct result of our people and the relationships they build every day. We take a resolute responsibility for our role in each project and for the communities we serve. At JE Dunn, people come first. As an employee-owned construction company, we’ve spent more than 100 years creating a culture of inclusion and belonging. Our success is powered by our people and our shared commitment to doing the right thing, giving back, and building authentic partnerships in the communities where we live and work. These principles drive our vision to enrich lives through inspired people and places. We believe successful projects start with people. Our teams take time to understand each client’s journey and remain flexible, accountable, and transparent from start to finish. Through unmatched communication and ongoing collaboration, we bring the right people and the right tools together to support informed decisions, reduce risk, and deliver outcomes aligned with project goals. Ready to work with us? Learn more at jedunn.com.