What company did Barrie D'Rozario DiLorenzo work with that placed sixth in the Fortune 500?
UnitedHealth Group UnitedHealth Group Inc. is an American managed health care company based in Minnetonka, Minnesota. It is sixth in the United States on the Fortune 500. UnitedHealth Group offers products and services through two operating businesses, UnitedHealthcare and Optum, both subsidiaries of UnitedHealth Group. Optum is a healthcare service arm of UnitedHealth Group and the largest healthcare IT company in the world by revenue ($84 billion in 2016). Together, Optum and Unitedhealthcare serve approximately 115 million individuals in 2016. In 2016, the company reported an operating income of $13 billion.
Arthur Andersen Arthur Andersen LLP, based in Chicago, is an American holding company and formerly one of the "Big Five" accounting firms among PricewaterhouseCoopers, Deloitte Touche Tohmatsu, Ernst & Young and KPMG, providing auditing, tax, and consulting services to large corporations. In 2002, the firm voluntarily surrendered its licenses to practice as Certified Public Accountants in the United States after being found guilty of criminal charges relating to the firm's handling of the auditing of Enron, an energy corporation based in Texas, which had filed for bankruptcy in 2001.