Versapay
Versapay offers electronic invoicing, a customer portal where buyers pay, view account history and resolve disputes, B2B payments including ACH and cards, AI cash application, and collections. It lists manufacturing, wholesale distribution and professional services.
Best fit: a supplier that wants invoices, payments and customer conversations in one shared portal.
Accounting systems: NetSuite, Sage Intacct and Microsoft Dynamics 365, with other ERPs through open APIs or flat files.
Esker
Esker sells order-to-cash software to "the Office of the CFO." It sends invoices in each customer's preferred format, with e-invoicing compliance in more than 60 countries, plus collections, cash application, credit, deductions and online payments.
Best fit: a larger supplier with e-invoicing obligations in several countries, or several ERPs after acquisitions.
Accounting systems: says it integrates with over 70 ERPs; none named on its home page.
HighRadius
HighRadius covers order-to-cash (collections, cash application, deductions, credit, e-invoicing) alongside payables, payments, close and treasury, for mid-sized and large organizations. See HighRadius alternatives.
Best fit: a finance team that wants receivables and wider finance on one platform.
Accounting systems: 50+ ERPs and systems, with pages for SAP, Oracle, Microsoft Dynamics and NetSuite.
Kolleno
Kolleno covers collections, a payment portal, cash application, disputes, credit risk and forecasting, plus an AP Portal Agent that submits invoices through customers' AP portals, which overlaps with part of Billtrust.
Best fit: a finance team on QuickBooks, Xero or a mid-sized ERP that wants collections and payments together.
Accounting systems: NetSuite, QuickBooks, Microsoft Dynamics, Xero and Sage.
Paidnice
Paidnice sends reminders and scheduled statements, adds late fees that can wait for your approval, runs a payment portal with card, bank transfer and payment plans, and reads replies to draft the next step for a person to approve.
Best fit: a small business that wants reminders and a payment portal on top of its books.
Accounting systems: Xero and QuickBooks.
The AR Agent
The AR Agent covers one part of what Billtrust does: collections follow-up. The AI agent chases overdue invoices by email from the due dates in QuickBooks or Xero, reads and answers replies, tracks promises to pay, and brings disputes and judgement calls to a person.
It does not deliver invoices to AP portals, process payments, run a portal, apply cash or check credit.
Best fit: a small or mid-sized B2B business whose real problem is overdue invoices nobody has time to chase.
Accounting systems: QuickBooks and Xero, with Gmail or Outlook.