A C-level executive is a senior executive within a company, typically holding a title that begins with the letter 'C,' such as CEO (Chief Executive Officer), CFO (Chief Financial Officer), COO (Chief Operating Officer), CIO (Chief Information Officer), or CMO (Chief Marketing Officer). These executives are responsible for making strategic decisions for the organization and leading the overall direction of the company. They often report directly to the board of directors and oversee the work of other senior executives and managers. C-level executives play a critical role in ensuring the success and growth of the company.