Series A Round Co-Led by CMT Digital and Lightspeed Faction, with participation from SixThirty Ventures, Stellar Development Foundation, Tech Council Ventures, Onigiri Capital and BitRock Capital

JERSEY CITY, N.J., Sept. 3, 2026 /PRNewswire/ -- Diameter Pay, a fintech platform building the infrastructure for global U.S. dollar payments and virtual accounts, today announced a $10 million Series A financing round co-led by CMT Digital and Lightspeed Faction, with participation from SixThirty Ventures, Stellar Development Foundation, Tech Council Ventures, Onigiri Capital and BitRock Capital.

Diameter Pay gives banks, fintechs, digital asset exchanges and their customers around the world access to U.S. dollar accounts and payment rails through a single API. The platform supports virtual accounts, domestic and international payments, stablecoin on- and off-ramps, and embedded compliance controls across multiple U.S. banking partners. Diameter Pay has processed more than $10 billion year-to-date in 2026.

The U.S. dollar remains the foundation of global trade and payments, but accessing it has become increasingly difficult in many parts of the world. Correspondent banks have pulled back from entire markets amid rising sanctions and anti-money laundering risk. The result is a global financial system in which legitimate businesses can be excluded alongside the bad actors those safeguards are designed to stop.

"The world is becoming more global, but the financial system is becoming more fragmented," said David Lighton, founder and CEO of Diameter Pay. "Diameter Pay takes a different approach: rather than asking banks to accept more risk, we provide the technology, data, and compliance infrastructure to understand and manage that risk with greater precision. That's the bridge we're building, between traditional finance and digital finance, so money can move at the speed people and businesses actually need in a world that now runs 24/7."

Stablecoins are amplifying the need for solutions. They enable dollar value to move globally, around the clock, but institutions still need regulated, reliable connectivity between digital dollars and the U.S. banking system, especially to fight financial crimes. Diameter Pay provides that connective tissue, giving banks the technology, data, and compliance infrastructure to manage digital risk with more precision.

The financing will accelerate Diameter Pay's mission to expand access to the U.S. dollar for financial institutions around the world. The company will use the capital to expand its banking and payment capabilities, deepen its stablecoin and FX infrastructure, and continue investing in the technology and compliance capabilities required to safely move dollars across borders.

"Stablecoins are transforming how dollars move globally, but they don't replace the need for trusted access to the U.S. banking system," said Charlie Sandor, Partner at CMT Digital. "Diameter provides that connective layer, combining traditional payment rails, stablecoin infrastructure, and compliance in a platform built for regulated financial institutions."

"The challenging part of modernizing global payments with stablecoins isn't just technology. It's building reliable and trustworthy compliance and banking infrastructure," said Tim Khoury, Partner at Lightspeed Faction. "Diameter started with a relentless focus here, and has won the trust of a growing number of clients as a result. We're thrilled to be backing the company for its next leg of growth."

"The modern payments stack is no longer just about speed-to-market; it's about speed-to-trust. The components: verified counterparties, transactions screened before they move, and licensed settlement behind them," said Evan Thorpe, Principal at SixThirty Ventures.  "Diameter is the settlement layer that ties each of those critical parts together, turning a trusted counterparty and a clean transaction into dollars that actually arrive, compliantly, across borders. It reflects a conviction we hold about this market: trust, not transport, is the product in modern money movement. Diameter delivers it."

About Diameter Pay
Diameter Pay's mission is to expand global financial institutions' and fintechs' access to the U.S. dollar through compliance-first infrastructure trusted by banks and regulators. The platform provides U.S. virtual accounts, domestic and international payment rails, stablecoin on- and off-ramps, and embedded compliance controls across multiple banking partners. Diameter Pay is led by a team of banking, payments, technology, and regulatory veterans with decades of experience building and operating financial systems, including former senior executives and founders from Deutsche Bank, Fidelity Investments, Segovia Technology, Reserve Trust, and the World Bank.

Media Contact
Press@Diameterpay.com

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SOURCE Diameter Pay