Mastercard Inc. is an American multinational payment card services corporation headquartered in Purchase, New York. It provides payment transaction processing and other related-payment services, including travel-related payments and bookings). Its principal business globally is to process payments between the banks of merchants and the card-issuing banks or credit unions of purchasers who use its branded debit, credit and prepaid cards to make purchases. Mastercard has been publicly traded since 2006.