Mr. Gilbreath expanded his professional activities in 1996, joining SignAd, Inc., and SignAd, Ltd., as executive vice president, director, and shareholder. Over nearly two decades, he provided outdoor Texas advertising businesses with more than 2,500 outdoor advertising units. He gained additional experience as the director and shareholder at First Choice Bank and First Northwestern Bank.

In 2011, Mr. Gilbreath took on the role of president, chairman, and shareholder at Gilbreath Outdoor Advertising, LLC. He has secured space for over 400 billboard displays throughout the state. He leads the company’s status and digital advertising units and manages all matters of staff oversight and business development.

Academically, Mr. Gilbreath studied agricultural economics at Texas A&M University. He competed on the school’s track and field team while pursuing his degree.