Alliance Data Systems was born of the 1996 combination of a J.C. Penney transaction-processing operation and The Limited's credit card bank business. With headquarters in Plano, Texas, Alliance provides marketing, loyalty program, and private-label credit card services. The company is known for its large Air Miles loyalty program in Canada. In 2014, the company acquired Conversant to bolster its digital marketing efforts. The private-label services and credit group is financially the company's most important operating segment.

American Express is a global financial institution, operating in about 130 countries, that provides consumers and businesses charge and credit card payment products. The company operates a highly profitable merchant payment network. Since 2018, the company has operated in three segments: global consumer services, global commercial services, and global merchant and network services. In addition to payment products, the company's commercial business offers expense management tools, consulting services, and business loans.

Capital One is a diversified financial services holding company offering a broad spectrum of financial products and services to consumers, small businesses, and commercial customers through a variety of delivery channels. Capital One serves commercial and consumer banking customers through branches in New York, New Jersey, Texas, Louisiana, and Virginia.

Discover Financial Services is a bank operating in two distinct segments: direct banking and payments. The company issues credit and debit cards and provides other consumer banking products including deposit accounts, students loans, and other personal loans. In addition, it generates revenue from payments processed on the Discover network. The Discover Network is the third-largest payment network as ranked by overall merchant acceptance, trailing Visa and Mastercard.

Fidelity National Information Services provides core and payment processing services to banks. In addition, it provides processing software for capital markets providers, asset managers, and custodians. The company serves more than 20,000 institutions in over 130 countries. North America accounts for 76% of revenue; Europe, the Middle East, and Africa another 15%; while Asia accounts for 5% of total sales.

Fiserv is a leading provider of core processing and complementary services, such as electronic funds transfer, payment processing, and loan processing, for U.S. banks and credit unions. It serves 13,000 clients, with a focus on its legacy business with small and midsize banks.

Global Payments is a leading provider of payment processing and software solutions and focuses on serving small and midsize merchants. The company operates in 30 countries and generates about one fourth of its revenue from outside North America, primarily in Europe and Asia.

Mastercard is the second-largest payment processor in the world and processed $4.3 trillion in purchase transactions in 2018. Mastercard operates in over 200 countries and processes transactions in over 150 currencies.

Navient Corp is a financial services company that provides education loan management and business processing services to education, healthcare, and government clients at the federal, state, and local levels. The company operates in Delaware, western New York, northern Pennsylvania, Indiana, Tennessee, Texas, and Virginia, among other locations. The company has three primary reportable business segments: Federal Education Loans, Consumer Lending and Business Processing. The company's fourth and other segment relates to financial results of the company's holding company, including activities related to repurchases of debt, corporate liquidity portfolio, and unallocated overhead and regulatory-related costs.

PayPal provides electronic payment solutions to merchants and consumers. The company's digital wallet securely and conveniently stores customer account data. PayPal also facilitates payment processing for merchants. The company earns revenue through transaction fees and by providing a variety of other financial services, including lending.

Synchrony Financial, formerly GE Capital's retail finance business, is the largest provider of private-label credit cards in the United States based on purchase volume and receivables. Through its partners' 350,000 locations in the U.S. and Canada along with websites and mobile applications, Synchrony offers a variety of credit products through three sales platforms: retail card (private-label credit cards), payment solutions (consumer financing for major purchases), and CareCredit (financing for elective healthcare procedures).

Total System Services Inc based in Columbus, Georgia, provides payment-processing services in the U.S. and abroad. In 2013 TSYS provided processing services for 28% of domestic consumer credit card accounts and 59% of domestic commercial credit card accounts. The company has operating segments in North America Services, International Services, and Merchant Services, plus the newer NetSpend segment, which deals in prepaid debit and payroll cards and arrived via a 2013 acquisition.

Visa is the largest payment processor in the world. In fiscal 2018, it processed $8.2 trillion in purchase transactions. Visa operates in over 200 countries and processes transactions in over 160 currencies. Its systems are capable of processing over 65,000 transactions per second.

Western Union provides domestic and international money transfers through its global network of about 500,000 outside agents. It is the largest money transfer company in the world and one of only two companies with a truly global agent network, with MoneyGram being the other.

Fleetcor Technologies Inc is a provider of specialised payment products. The company offers fleet cards, food cards, corporate lodging discount cards, and other specialised payment services. Fleetcor's systems enable its customers to manage and control their commercial payments and loyalty-card programmes. Customers include commercial fleet operators, major oil companies, petroleum marketers, and government entities. Further, Fleetcor offers customised analysis solutions to its clients, offering business productivity tracking capabilities. North America is the largest geographic operating segment.

Golden Bull Ltd is an online finance marketplace in China which provides short-term loans to borrowers. The company mainly offers loans ranging from 30 days to 90 days which are secured by borrowers' automobiles. It provides an online platform to individual lenders and individual and small business borrowers. The company offers risk-adjusted returns to lenders. It generates revenue in form of transaction fees and management fees.