C arl Cook is an American billionaire and the CEO of the Cook Group, a privately held global medical device manufacturer based in Bloomington, Indiana. He is the son of the company's founders, William 'Bill' Cook and Gayle Cook, who started the business in the bedroom of their apartment in 1963. They built the company into a giant in the medical device industry, specializing in minimally invasive devices like stents and catheters.

Carl Cook inherited the company after his father's death in 2011. He had worked at the company for many years in various roles, including in Europe and Asia, before taking the helm. As CEO, he has continued his parents' legacy, overseeing the vast, family-owned enterprise that has a major presence in medical fields like radiology, cardiology, and urology. He has maintained the company's private status and its deep roots in its Indiana hometown, where it is a major employer.