Startup profile · funding coverage
Diameter Pay funding, valuation and investors
Compliance-first U.S. dollar rails, virtual accounts, and stablecoin on/off-ramps for banks and fintechs.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series A
$10M · September 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$10M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series a · Jersey City, New Jersey, USA
Investors in latest funding
Lead: CMT Digital , Lightspeed Faction
Other: SixThirty Ventures , Stellar Development Foundation , Tech Council Ventures , Onigiri Capital , BitRock Capital
Overview
Diameter Pay (formerly SendFriend) is a Jersey City fintech building infrastructure for global U.S. dollar payments and virtual accounts. Banks, fintechs, and digital-asset exchanges use its API for virtual accounts, domestic and international rails, stablecoin on- and off-ramps, and embedded compliance across U.S. banking partners. On September 3, 2026 it announced a $10 million Series A co-led by CMT Digital and Lightspeed Faction; the company said it processed more than $10 billion year-to-date in 2026 (company PR / The Block).
Why Diameter Pay is interesting
Bootstrapped until a $10M Series A (CMT Digital + Lightspeed Faction, announced Sep 3, 2026) while claiming >$10B YTD payment volume and 10,000+ end users — institutional dollar access + stablecoin settlement in one API.
Product & use cases
Single API for U.S. dollar virtual accounts, payment rails, stablecoin ramps, and compliance controls aimed at regulated financial institutions rather than consumer remittance apps.
- Foreign banks needing compliant USD account access
- Fintechs and exchanges needing stablecoin↔bank connectivity
- Cross-border institutional dollar settlement with embedded screening
Key facts
- $10M Series A co-led by CMT Digital and Lightspeed Faction (Sep 3, 2026) — first outside round; closed July, announced Sept
- Company: >$10B payment volume YTD 2026; >10,000 live end users (The Block)
- Board: CMT Digital seat; Lightspeed Faction and SixThirty observers; Robert Pozen senior advisor
Funding history (newest first)
Series A
2026-09 $10M- CMT Digital (lead)
- Lightspeed Faction (lead)
- SixThirty Ventures (participant)
- Stellar Development Foundation (participant)
- Tech Council Ventures (participant)
- Onigiri Capital (participant)
- BitRock Capital (participant)
Industries
Related funding articles
Venture Capital Tracker pieces that cover Diameter Pay's financing or category context.
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