McKinsey & Company is a management consulting firm that provides advice on strategic management to corporations, governments, and other organizations. McKinsey is one of the largest consulting firms in the world, with over 30,000 employees and 130 offices in more than 65 countries. The firm has worked with many of the world's leading companies and has been involved in some of the most significant business transformations in recent history. McKinsey is known for its rigorous approach to problem-solving and its focus on delivering measurable results to its clients.