McKinsey & Company is a global management consulting firm founded in 1926. It helps clients address their most important problems and has helped create innovations like the barcode. McKinsey uses various frameworks to analyze companies and industries, develop strategies, and advise on digital transformation. Some key clients include Coca-Cola, Microsoft, and the Bill & Melinda Gates Foundation. McKinsey's main competitors are Boston Consulting Group, Deloitte, and Bain & Company.