Visa

Visa is an American multinational financial services corporation operating electronic payment systems throughout the world and is headquartered in San Francisco, California, United States. Visa also provides electronic payment, risk management, and payment security solutions for merchants, goods transaction services, digital media, social networks, mobile financial services, and financial institutions in developing economies. In 2021, Visa processed over $10 trillion in purchase transaction, making it the largest payment processor in the world in that fiscal period. Visa operates in over 200 countries and processes transactions in over 160 currencies, while capable of processing over 65,000 transactions per second.