CEO of Aramark
John J. Zillmer’s story is one of leaving and returning. He started at Aramark, left to run other major companies, and came back to lead the very place where his journey began. Along the way, he has been recognized for his work in governance, trusted by other companies to sit on their boards, and committed to giving back through philanthropy. From a worker in the kitchen to a CEO, his path shows how early lessons, education, and decades of experience can come together in a career that spans industries, countries, and communities.