Founded by Mamon Powers in 1967, Powers & Sons Construction Co. Inc. is the largest general contracting and construction firm in Indiana. Powers & Sons specialize in commercial, industrial, and institutional constructing.  The Gary, Indiana-based company provides demolition, excavation, carpentry, and concrete services.

Clients include the State of Indiana, Lilly, University of Chicago Hospitals, and British Petroleum.

In 2008, the company earned $71.5 million in revenues—down 6.4% from the previous year.