Mastercard, Visa, and Discover are top rivals of American Express Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who has been working in the accounting ...

FAQs Compare credit repair companies Visa and Mastercard are two of the four largest credit card networks globally, with the other two being American Express and Discover. Credit card networks ...

While each of the four networks – Visa, MasterCard, Discover and American Express – has taken moves, it is Visa and MasterCard that have been more aggressive. “All of the payment networks ...