Mastercard Incorporated, a technology company, provides transaction processing and other payment-related products and services in the United States and internationally. The company offers integrated products and value-added services for account holders, merchants, financial institutions, digital partners, businesses, governments, and other organizations, such as programs that enable issuers to provide consumers with credits to defer payments; payment products and solutions that allow its customers to access funds in deposit and other accounts; prepaid programs services; and commercial credit, debit, and prepaid payment products and solutions. It also provides solutions that enable businesses or governments to make payments to businesses, including Virtual Card Number, which is generated dynamically from a physical card and leverages the credit limit of the funding account; a platform to optimize supplier payment enablement campaigns for financial institutions; and treasury intelligence platform that offers corporations with recommendations to enhance working capital performance and accelerate spend on cards. In addition, the company offers Mastercard Send, which partners with digital messaging and payment platforms to enable consumers to send money directly within applications to other consumers; and Mastercard Cross-Border Services enables a range of payment flows through a distribution network with a single point of access to send and receive money globally through various channels, including bank accounts, mobile wallets, cards, and cash payouts. Further, it provides cyber and intelligence solutions; insights and analytics, consulting, marketing, loyalty, processing, and payment gateway solutions for e-commerce merchants; and open banking and digital identity services. The company offers payment solutions and services under the MasterCard, Maestro, and Cirrus name. Mastercard Incorporated was founded in 1966 and is headquartered in Purchase, New York.

American Express Company, together with its subsidiaries, operates as integrated payments company in the United States, Europe, the Middle East and Africa, the Asia Pacific, Australia, New Zealand, Latin America, Canada, the Caribbean, and Internationally. It operates through four segments: U.S. Consumer Services, Commercial Services, International Card Services, and Global Merchant and Network Services. The company's products and services include credit card, charge card, banking, and other payment and financing products; network services; expense management products and services; and travel and lifestyle services. It also provides merchant acquisition and processing, servicing and settlement, point-of-sale marketing, and information products and services for merchants; and fraud prevention services, as well as the design and operation of customer loyalty programs. In addition, the company operates lounges at airports under Centurion Lounge brand name. It sells its products and services to consumers, small businesses, mid-sized companies, and large corporations through mobile and online applications, affiliate marketing, customer referral programs, third-party service providers and business partners, direct mail, telephone, in-house sales teams, and direct response advertising. American Express Company was founded in 1850 and is headquartered in New York, New York.

PayPal Holdings, Inc. operates a technology platform that enables digital payments on behalf of merchants and consumers worldwide. It operates a two-sided network at scale that connects merchants and consumers that enables its customers to connect, transact, and send and receive payments through online and in person, as well as transfer and withdraw funds using various funding sources, such as bank accounts, PayPal or Venmo account balance, PayPal and Venmo branded credit products comprising its installment products, credit and debit cards, and cryptocurrencies, as well as other stored value products, including gift cards and eligible rewards. The company provides payment solutions under the PayPal, PayPal Credit, Braintree, Venmo, Xoom, Zettle, Hyperwallet, Honey, and Paidy names. The company was founded in 1998 and is headquartered in San Jose, California.

Discover Financial Services, through its subsidiaries, provides digital banking products and services, and payment services in the United States. It operates in two segments, Digital Banking and Payment Services. The Digital Banking segment offers Discover-branded credit cards to individuals; personal loans, home loans, and other consumer lending; and direct-to-consumer deposit products comprising savings accounts, certificates of deposit, money market accounts, IRA certificates of deposit, IRA savings accounts and checking accounts, and sweep accounts. The Payment Services segment operates the PULSE to access automated teller machines, debit, and electronic funds transfer network; and Diners Club International, a payments network that issues Diners Club branded charge cards and/or provides card acceptance services, as well as offers payment transaction processing and settlement services. The company was incorporated in 1960 and is based in Riverwoods, Illinois.

Global Payments Inc. provides payment technology and software solutions for card, check, and digital-based payments in the Americas, Europe, and the Asia-Pacific. It operates through two segments, Merchant Solutions and Issuer Solutions. The Merchant Solutions segment offers authorization, settlement and funding, customer support, chargeback resolution, terminal rental, sales and deployment, payment security, and consolidated billing and reporting services. This segment also provides an array of enterprise software solutions that streamline business operations of its customers in various vertical markets; and value-added solutions and services, such as point-of-sale software, analytics and customer engagement, payroll and reporting, and human capital management. The Issuer Solutions segment offers solutions that enable financial institutions and retailers to manage their card portfolios through a platform; and commercial payments, account payables, and electronic payment alternatives solutions for businesses and governments. It markets its products and services through direct sales force, trade associations, agent and enterprise software providers, referral arrangements with value-added resellers, and independent sales organizations. The company was founded in 1967 and is headquartered in Atlanta, Georgia.

Sezzle Inc. operates as a technology-enabled payments company primarily in the United States and Canada. The company provides payment solution in-store and at online retail stores; and through proprietary payments solution that connects consumers with merchants. It also offers Sezzle Platform that provides a payments solution for consumers that extends credit at the point-of-sale allowing consumers to purchase and receive the ordered merchandise at the time of sale while paying in installments over time; Pay-in-Four, which allows consumers to pay a fourth of the purchase price up front and then another fourth of the purchase price every two weeks thereafter over a total of six weeks; Pay-in-Full that allows consumers to pay for the full value of their order up-front through the Sezzle Platform without the extension of credit; and Pay-in-Two and other alternative installment options, which allow consumer to pay half of the value of their order up-front and the second half in two weeks. In addition, the company provides Sezzle Virtual Card that allows consumers to access the Sezzle Platform in the form of close-end installment loans and shop with merchants that are not integrated with Sezzle; Sezzle Anywhere, a paid subscription service that allows consumers to use their Sezzle Virtual Card at any merchant online or in-store; Sezzle Premium, a paid subscription service that allows its consumers to access large, non-integrated premium merchants; and Sezzle Up, an opt-in feature of the Sezzle Platform. Further, it offers Long-Term Lending through collaboration with third-party lenders and Product Innovation. Sezzle Inc. was incorporated in 2016 and is headquartered in Minneapolis, Minnesota.