In 1925 , Warren , his sons Warren Jr , Stephen , Kenneth ( Ken ) , and his brother Arthur ( Art ) joined him and incorporated as W.A . Bechtel Company , which by this time was the leading construction company in the western United States .
Warren , his sons Warren Jr , Stephen , Kenneth ( Ken ) , and his brother Arthur ( Art ) joined and incorporated the company as W.A . Bechtel Company in 1925 .