José Yao Campos (1922 – May 4, 2006), also known by his Chinese name Yao Cho Diat, was a Filipino-Chinese businessman best known as the founder of United Laboratories (UNILAB). He became an early supporter of Philippine president Ferdinand Marcos, who tapped him as a "financial advisor." In 1986, the Presidential Commission on Good Government (PCGG) cited him for having served as a "front man" for various "ill-gotten" wealth, including $52.5 million of real estate representing the most prominent Marcos Mansions. He became the first of the Marcos cronies to make a deal with the PCGG in exchange for immunity from suit. By the time he died in 2006, his family had become one of the Philippines' most powerful business clans, with UNILAB helmed by his firstborn, Joy Campos Hess and her son, Clin