Mastercard Incorporated is a leading global payment technology company that facilitates electronic funds transfers worldwide. The company's core business model revolves around operating a proprietary global payments network that connects consumers, financial institutions, merchants, governments, and businesses. Mastercard does not issue cards, extend credit, or set interest rates; instead, it generates revenue primarily by charging fees to its customers (issuers and acquirers) based on the gross dollar volume of activity on the cards carrying its brands, as well as the number of transactions processed. Revenue is broadly categorized into payment network assessments, transaction processing fees, and value-added services and solutions. The value-added services segment has become increasingly significant, offering cyber and intelligence solutions, fraud prevention, data analytics, consulting, and loyalty programs. Geographically, Mastercard operates in over 210 countries and territories, with a substantial portion of its revenue derived from international markets outside the United States. The company maintains a strong competitive position in a duopoly with Visa, benefiting from immense network effects, high barriers to entry, and a secular global shift from cash to electronic payments. Its multi-rail strategy encompasses traditional card payments, real-time account-to-account (A2A) payments, and open banking, ensuring its relevance across diverse payment ecosystems.