About Us

About Us

It’s the people of Industrial Builders who provide the indispensable quality of service and expertise that makes us what we are today. While our company is steeped in the Midwest’s long history of growth and prosperity, today IBI defines itself as a company that’s growing the future.

As a diversified General Contractor, we offer clients expertise in all phases of civil, marine and building construction. IBI employs approximately 275 construction workers during the peak season in spring and summer. We perform about $50 million worth of volume annually, with 70% of that volume being self-performed. In fact, it’s safe to say that IBI built a good portion of Midwest America’s infrastructure—a landscape that is strong, safe and vibrant.

Equipped to Get the Job Done

IBI’s fleet of equipment includes all the machines and vehicles needed to build the most difficult job—even in the tundra conditions of midwinter. We have heavy trucks, cranes, dozers, loaders, packers, pumps, welders, generators, light plants, temporary heaters, ground thaw systems and literally thousands of pieces of equipment needed to build projects safely 12 months a year. That’s why we continue to be one of America’s most successful construction companies – because we don’t stop to let the weather pass.

Versatility, organization, safety and performance. The IBI way.


Our story began in 1953 when Warren B. Diederich decided to start a construction outfit. All he owned to get the business off the ground was a Studebaker truck and the vision to build. When Warren Diederich put his shovel to work for the first time, Industrial Builders, Inc. has constructed a reputation of unprecedented quality and ingenuity. Our president, Paul Diederich, has worked in the industry since 1974. Executive Vice President, Donn Diederich, began with IBI in 1971. Notable leaders in the industry, all three have served as presidents of the North Dakota Associated General Contractors of America. Paul Diederich also served as the president of the Associated General Contractors of America, which represents over 25,000 construction related companies throughout the country.

Industrial Builders History