GrailPay raises $10.5M to build the trust layer for agentic & instant payments

We’re excited to share some news: GrailPay has raised a $10.5 million Series A led by MissionOG, with participation from EJF Ventures, Counterpart Ventures, Construct Capital, Commerce Ventures, and SSC Venture Partners.

This funding will accelerate the expansion of our Payments Identity Network, the trust layer for bank account risk in the future of agentic and instant business payments.

“$80T. That’s the size of the B2B payments economy that will go unaddressed by the flurry of innovation we’re seeing in agentic protocols. We’ve been building foundational infrastructure for the coming wave of B2B payments innovation. Our Payments Identity Network covers over 99% of U.S. bank accounts, providing auditable identity profiles for trust and authentication to usher in the future of agentic payments and instant settlement.”
‍ — Will Messina, Co-founder & CEO, GrailPay

Legacy risk decisioning solutions resell siloed datasets, hand back binary decisions without context, and charge high broker fees just for access to data nobody’s actually improved. That approach can’t keep pace with what’s happening in AI and digital assets right now. The market needs something built for the moment we’re in, not the moment ACH was designed for.

What we’ve built

GrailPay’s risk decisioning models combine proprietary first-party processing data from our own payments platform with leading third-party data sources. Together, they provide tailored insights into the risk profile of a bank account and the identities associated with it, which is the first thing you need to underwrite new use cases like agentic payments, stablecoin cross-border remittances, and instant, guaranteed bank payments. Our network of bank account risk profiles is one of the largest available today and is the foundation for widespread commercial adoption of agentic payments.

We started as a modern bank payments API platform. Since then, our processing volume has grown to billions in annualized ACH origination, doubling quarter over quarter. That first-party data now supports risk decisioning partnerships with some of the largest financial institutions and fastest-growing fintechs in the world. We’ve had zero customer churn to date, and customers grow their spend with us by over 200% on average in their first year.

Our platform brings together a suite of risk products, including Account Intelligence, Transaction Intelligence, and Guaranteed ACH, alongside our API payment processing platform, which supports a wide range of payment speeds and flows of funds.

Why MissionOG is backing us

Kevin Leonard, Partner and Lead Investor at MissionOG, put it this way:

“ACH is the backbone of B2B commerce but has never had the risk and authorization infrastructure that card networks have had for decades, a gap that only grows as payments become instant and autonomous. GrailPay built this trust layer the hard way, combining money movement with risk intelligence to create a data flywheel that gets smarter with every transaction. Will and the GrailPay team have the domain expertise and product vision to make the future of payments faster and safer, and we're thrilled to partner with them.”

What’s next

This Series A funds three things:

• Deeper data analytics and modeling research to keep sharpening our risk profiles
• Go-to-market work in agentic and instant payments, so we can reach the use cases this infrastructure is built for
• Expansion of our Payments Identity Network, deepening coverage across banking and banktech infrastructure, payment processors, embedded fintech platforms, AR/AP systems, and risk platforms.

We’re just getting started, and we’re glad to have you along for it.