Stripe runs a financial infrastructure platform. The company offers a suite of services including online payment processing, revenue and finance automation, and banking-as-a-service. Its services allow businesses to accept payments online or in person, automate their revenue and finance operations, and embed financial services into their own platforms or products. Stripe primarily serves the e-commerce, software as a service (SaaS), marketplace, and finance automation sectors. Stripe was formerly known as DevPayments. It was founded in 2010 and is based in South San Francisco, California.

Worldpay provides electronic payment processing services to merchants and financial institutions. It offers merchant acquiring and payment processing services, such as authorization and settlement, customer service, chargeback and retrieval processing, and interchange management for national merchants, and regional and small-to-medium-sized businesses. The company was founded in 1993 and is based in London, United Kingdom.

CSI (OTCQX: CSVI) provides regulatory solutions for digital transformation and regulatory compliance in the banking sector. It offers enterprise banking, managed cybersecurity, IT management, regulatory compliance, digital banking, core banking process, document delivery, and advisory services. The company was founded in 1965 and is based in Paducah, Kentucky.

Optty helps retailers to integrate global BNPL technologies via a single developer platform. It aims to give retailers the simplest e-commerce integrations and consumers more choices at checkout. Optty is a cloud-based platform connecting via an API Integration to BNPL and NextGen integrated payments providers. Oppty tokenizes transactions, and all transactions are performed with the gateways. The company was founded in 2021 and is based in Singapore.

Klarna provides financial services and social shopping solutions. The company offers a platform to compare prices on a wide range of products from various stores, enabling consumers to find the best deals. Its services are primarily used by consumers and retailers in the electronic commerce industry. It was founded in 2005 and is based in Stockholm, Sweden.

PayNearMe develops technology to facilitate the end-to-end customer payment experience. It offers a billing and payment platform. Its platform helps users pay with cash for a range of goods and services from companies in e-commerce, property management, consumer finance, and transportation, enabling businesses and government agencies as well as retail stores to digitize their cash collection processes. It was formerly known as Handle Financial. The company was founded in 2009 and is based in Santa Clara, California.