William is founder, president, and CEO of the World Justice Project, which works to lead a global, multidisciplinary effort to strengthen the Rule of Law for the development of communities of opportunity and equity. He is a former managing general partner of the San Francisco Giants baseball team ownership group. Prior to holding this position, he was President of the American Bar Association in 2007–08. He was the principal legal counsel for Microsoft for almost 25 years and also chairman of the Gates law firm in Seattle, now part of K&L Gates. Along with his four children, William founded the Neukom Family Foundation, which supports not-for-profit organizations principally in the fields of health, human services, education, justice, and the environment.