Is it worth it to accept non-Visa/MasterCard credit cards? Visa and MasterCard are the two largest companies in the credit card processing industry, and it’s not even close. In 2013, Visa and MasterCard accounted for over 87% of all card transactions worldwide. The third-most common transaction type by card brand was China UnionPay with 7.7% of the global market, while … [Read more...] about Should you be accepting alternative card brands?