For more than 40 years, Johnny Weisman has successfully owned and operated three businesses that support the construction and expansion of roadways in the state and federal highway systems: Hunter Industries Ltd., Colorado Materials Ltd., and Weisman Equipment Co. Ltd.

Hunter Industries constructs, rehabilitates, and expands roadways of the state and federal highway and roadway systems. Colorado Materials provides limestone base and aggregate materials, as well as hot mix asphalt to Hunter Industries and other companies for their commercial and highway needs. Weisman Equipment maintains all equipment for the other two companies.

Weisman's dedication to the highway industry is demonstrated through the two terms he has served as the president of the Texas Associated General Contractors (AGC) of Texas – Highway, Heavy, Utilities and Industrial Branch. In his first term as president in 1988, the AGC of Texas was awarded Chapter of the Year by the AGC of America as the top performing chapter across the nation. Weisman has also chaired every major chapter committee and task force within the AGC of Texas. In 2018, he was awarded the L.P. “Pete” Gilvin Award, AGC of Texas’ highest honor.

Weisman is involved in several nonprofit organizations in his local community, including the Comal County Junior Livestock and Youth Show, Communities in Schools of South Central Texas, and the New Braunfels Education Foundation.