Stripe provides services for businesses to manage online and in-person payments. The company offers products including payment processing Application Programming Interfaces (APIs), payment tools, and solutions for handling subscriptions, invoicing, and financial reports. Stripe serves sectors such as e-commerce, Software as a Service (SaaS), platforms, marketplaces, and the creator economy. Stripe was formerly known as DevPayments. It was founded in 2010 and is based in South San Francisco, California.

Worldpay is a payments technology company specializing in omni-commerce solutions across various business sectors. The company offers services that enable businesses to accept, manage, and make payments in-person, online, and across multiple channels, including embedded payments for software platforms. Worldpay primarily serves small businesses, enterprises, software platforms, and marketplaces across various industries such as financial services, retail, and travel. It was founded in 1993 and is based in London, England.

PayU provides global payments and financial technology, solutions. The company offers a global payment platform that enables merchants to process online payments, optimize transaction approval rates, and utilize advanced security and anti-fraud measures. PayU primarily serves the ecommerce industry, providing financial services and payment solutions to businesses looking to expand their reach in emerging markets. It was founded in 2002 and is based in Hoofddorp, Netherlands. PayU operates as a subsidiary of Naspers.

BlueSnap provides flexible payment solutions and delivers a customizable platform to global online businesses such as software publishers, web hosting companies, and online retailers. BlueSnap builds and manages online businesses for software publishers, web hosting companies, and online retailers. A business can choose the BlueSnap hosted application that spans the entire e-commerce lifecycle, or it can deploy the BlueSnap API, which allows retailers to integrate the technology with existing solutions. Using BlueSnap software, retailers can deliver newsletters to customers, coupons and promotions, real-time reporting, and live chat, amongst other features. It was formerly known as Plimus. It was founded in 2001 and is based in Waltham, Massachusetts.

InComm Payments specializes in innovative payment technology solutions. The company offers a range of products including frictionless payment options, alternative payment methods like cryptocurrency, and management services for healthcare benefits. InComm Payments primarily serves sectors such as retail, healthcare, and e-commerce with its technology. It was founded in 1992 and is based in Atlanta, Georgia.

Airwallex develops a global financial platform that focuses on providing business payment solutions within the financial technology domain. The company offers an array of services including global business accounts for managing finances,  international transfers, multi-currency corporate cards, and online payment processing capabilities. It primarily serves the payment industry. The company was founded in 2015 and is based in Melbourne, Australia.