Solid foundation. Trusted partner.

For 95 years, we've been building more than hospital, industrial facilities, schools and commercial spaces. We’ve been building trust.

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Safety isn't about meeting minimum code. It's about doing whatever it takes to protect our employees, contractors, customers and environment. Even in highly regulated industries like manufacturing and healthcare, Tonn and Blank meets and exceeds the requirements.

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Our latest news

Growth Continues for the Midwest's Top Contractors

The ENR Midwest region includes Iowa, Illinois, Indiana, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, Ohio and Wisconsin, an area that's over 1,200 miles long east to west and almost as long

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New Habitat Homeowner in Northwest Indiana Excited to Move In

CROWN POINT, Indiana - Carol Swisher, a longtime cafeteria employee at Franciscan Heath Crown Point, receives the keys to her new Habitat for Humanity home in Lowell on November 29. The

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More than 70 companies honored at Construction Awards Banquet

More than 70 companies were honored at the annual Construction Advancement Foundation awards banquet, staged last week by the Northwest Indiana Business Round Table and the Construction Advancement Foundation. “The awards

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