Our People


Bill Ball
Grunau Company, Inc.

Bill Ball is the president of Grunau Company, a mechanical contracting, fire protection, and structural steel and specialty metal fabricating firm, headquartered in Oak Creek, Wisc. Grunau operates fire protection offices in Milwaukee, Wisc.; Indianapolis, Ind.; Youngstown, Ohio; Pittsburgh, Penn.; and Orlando, Fla.

Before Bill began work at Grunau, he served in various roles at Delta Fire Systems. He started in 2010 as a project manager and within a year took the role of operations manager.  Bill was then promoted to president in 2012.

Prior to joining Delta Fire, Bill served nine years in the U.S. Army, first as an Infantry officer with the 101st Airborne Division and finished his career as a commander with the 10th Special Forces Group (Green Beret). Bill served combat tours in Iraq and Afghanistan.

Bill is dedicated to advancing innovation and sustainability within the construction industry.

Outside of work, Bill enjoys spending time with his wife, Erica, their son, Will, and daughter, Hailey.