Thanks for stopping by! We’re pleased to announce that Rentenbach Constructors Incorporated is now officially known as The Christman Company. Christman acquired Rentenbach in a merger of the two privately-held firms in December 2013 and the company’s Knoxville, TN and Greensboro, NC offices continued operating under the Rentenbach name for several years but are now moving forward under the Christman brand.

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By the Numbers


Years of Experience and that's just the beginning.


Family Companies focused on living out The Christman Way.

Community Involvement

Rentenbach is proud to be an active and significant contributor to the local communities we serve. This takes many forms, such as individual and team volunteerism, corporate giving, sponsorships, and partnerships. Whether it's bagging 8,800 pounds of sweet potatoes at Gleaners Community Food Bank, collecting 30 pints of blood at an American Red Cross Blood Drive, or collecting over 350 toiletry items to donate to the Lansing City Rescue Mission, our Experts, Leaders and Partners are eager to make a difference in the communities they live and work in.