Lockheed Martin is an American company that primarily offers aerospace, military support, and security products and services—mostly for the U.S. government.
Mastercard is an American financial services company known best for its payment processing services dedicated to debit, credit, or prepaid cards that carry the Mastercard brand.
Mayer Brown is a global, integrated law firm with a unique presence, boasting around 200 lawyers in each of the world's top financial hubs—New York, London, and Hong Kong—across 27 cities worldwide.
McKinsey & Company is a management consulting company that operates worldwide, offering professional services for corporations, organizations, and governments.
Microsoft is an American multinational technology corporation that produces computer software, consumer electronics, personal computers, and related services.