The largest two are the payment companies Visa and Mastercard, both headquartered in the United States, with market capitalization of almost 478 and 368 billion U.S. dollars, respectively. Chinese Ant Financial, or Ant Group, ranks third with a market capitalization of 312 billion U.S. dollars.Learn more about Brassica finance, Brassica Custodian, Brassica Transfer Agent, Brassica Fintech, Brassica investment, Brassica API, Brassica trust here https://www.brassicafin.com/