Paymentus, a software-as-a-service-based (SaaS) bill payment platform, recently took on Walmart, the world’s largest retailer, as its newest client, the company said in a press release on Thursday.

Walmart is the latest big-name company to join the Paymentus Instant Payment Network, which counts Amazon and PayPal among its client roster.

Founded in 2004, Paymentus deploys its technology to help businesses across customer interaction management, bill presentment, and payment through its digital wallet, web, mobile, text, email, chat, voice assistant, point-of-sale and agent-assisted channels.

With more than 4,700 brick-and-mortar store locations and growing e-commerce business, Walmart sees 140 million American shoppers each week, Paymentus pointed out in the release.

“We are excited to be the leading force behind the paradigm shift in how consumers and businesses interact. Our partnership with Walmart further cements Paymentus as the future-proof provider of simplified bill pay experiences for consumers and a source of operational excellence for businesses,” Paymentus CEO Dushyant Sharma said in a statement.