A chief operating officer or chief operations officer, also called a COO, is one of the highest-ranking executive positions in an organization, composing part of the "C-suite". The COO is usually the second-in-command at the firm, especially if the highest-ranking executive is the chairperson and CEO. The COO is responsible for the daily operation of the company and its office building and routinely reports to the highest-ranking executive—usually the chief executive officer (CEO).
