Modern Treasury

Dimitri Dadiomov, Matt Marcus and Sam Aarons founded Modern Treasury in 2018 after working together at lending startup LendingHome/Kiavi and experiencing the brittle bank files, manual approvals and reconciliation behind money movement. The company first sold a software layer over customers' existing banks: APIs for ACH, wire, RTP/FedNow, checks and payment operations; virtual accounts; approvals; reconciliation; and a high-throughput immutable double-entry Ledgers API. It then added stablecoin infrastructure through partnerships and the October 2025 acquisition of Beam, followed in February 2026 by Modern Treasury Payments, an integrated payment service provider that can supply accounts, compliance and fiat/stablecoin execution rather than requiring customers to assemble their own banks/providers. Current products support programmable accounts, wallets, marketplace/lending/payroll/investment flows, cross-border/on-off-ramp and unified reporting. Modern Treasury says its infrastructure has processed $600b+ with 99.99% uptime; named users include Anchorage Digital, Float, Gusto, Navan, Procore and Sling Money. It raised about $183m: $10m Series A led by Benchmark, $38m Altimeter-led Series B, $85m Altimeter-led Series C at >$2b, and a $50m 2022 extension involving SVB Capital and Salesforce Ventures. Beam was an all-stock acquisition reported near $40m and had processed $350m+ itself. Pricing is now usage based by payment rail plus platform/ledger/account/compliance components and custom volume commitments; exact rates are not public. Core risks include operational or ledger errors in high-value flows, bank/vendor dependencies, compliance/licensing expansion as a PSP, stablecoin and sanctions regulation, client concentration and competition from Stripe, Adyen, banks and specialist ledger/payment APIs.

Founding story

At LendingHome the founders saw engineers and finance teams manually reconcile bank files and payment state, inspiring a developer-centric control plane and source-of-truth ledger for money movement.

Business model

Enterprise payment-infrastructure SaaS plus integrated payment-service-provider usage revenue across fiat and stablecoin rails.

Platform subscription/commitment plus usage fees by rail, transaction, account, ledger volume and compliance/service scope; professional services and enterprise support may be separately contracted.

Traction

Company website currently claims $600b+ processed and 99.99% uptime; the February 2026 launch disclosed $400b+ then. In November 2021 customers reconciled $2b+ per month. Current ARR, customer count, margins and profitability are private.

Latest developments

Acquired Beam, partnered with Paxos/Mastercard/Solana ecosystem, launched integrated Payments across ACH, wire, RTP/FedNow, push-to-card and major dollar stablecoins, and added checks while positioning rails as complementary rather than replacement technologies.