Paymode, the largest B2B (business-to-business) payment network in the United States, connects buyers to more than 600,000 validated and authenticated suppliers. Last year, Paymode (operated by Bottomline) processed more than $500 billion in card, ACH and paper check payments without any fraud tied to account takeover or payments directed to bank accounts managed by criminals.

American Express has become the latest company to offer Paymode as a noncard payment option to buyers that use its commercial card products. Amex joins JPMorgan, Bank of America, US Bank, TD Bank and other, Fifth Third Bank and financial institutions that offer Paymode on a white-label basis. More than 20 US banks and fintechs offer Paymode to their commercial customers.

All of those companies become channel partners that help expand the B2B network. A partner’s customers gain access to existing Paymode suppliers and they present Bottomline with a list of suppliers they want to join. Bottomline handles the task of validating and authenticating those new suppliers. It receives updated supplier data on an ongoing basis.

Channel partners like American Express—companies that aggressively promote commercial card products—accept that not all transactions a buyer needs to pay can migrate to a card payment. Paymode gives commercial card issuers an opportunity to earn fees for payments made outside of card networks and helps deepen the relationship with their customer.

Paymode processes premium ACH payments. Those are transactions that provide remittance data, consolidated reporting, early visibility into when a payment has been made, improved cash-flow forecasting and faster reconciliation. Premium ACH benefits suppliers and helps persuade companies to join Paymode.

Expanding the B2B network also helps curb paper check payments, which are a growing fraud vector in the US.

US financial institutions, including 18 of the top 50 largest, also offer their commercial customers Bottomline’s online business banking portal on a white-label basis. More than 450,000 US businesses use that portal. Collectively, they initiated more than $12 trillion in payments in 2025.

Bottomline also offers businesses a fraud prevention product focused exclusively on commercial payments. The company scores $10 trillion in payments annually. Most of those transactions are outside of the Paymode network and online business banking portal.

Customers in 92 countries use Bottomline, including in the UK where organizations leverage the company’s technology to send and receive payments through the Bacs (Bankers’ Automated Clearing Services) network. Many customers outside the US use Bottomline’s Swift-certified bureau service.

Private equity firm Thoma Bravo has owned Bottomline since May 2022, when it bought the company from its public shareholders for $2.60 billion in cash.

IPrior issues: 1251, 1132, 975, 931, 745