On a Sunday afternoon, when the Fed wire is closed and correspondent banks are dark, a merchant getting paid by Nuvei still sees money land. The settlement happens in stablecoins. The plumbing belongs to Rain.
That is the pitch the New York company has been selling to fintechs, neobanks, and platforms since 2021, and in January it convinced ICONIQ to lead a $250 million Series C at a $1.95 billion valuation [Rain, Jan 2026]. The round brings total disclosed funding to roughly $338 million [Stabledash, Jan 2026], a steep climb from the $58 million Series B that Sapphire Ventures led in 2024 [PR Newswire, 2024] and the $24.5 million Norwest-led raise in March 2025 [Business Wire, Mar 2025]. Three rounds. Less than two years. One thesis.
The bet
Rain sells modular APIs for card issuance, blockchain settlement, and compliance, packaged so a fintech can launch a card program that settles in stablecoins instead of waiting on legacy rails [Rain, retrieved 2026]. The wedge is straightforward: businesses that need to move dollars across borders, pay merchants on weekends, or fund payroll in countries with thin banking infrastructure get instant, programmable settlement without building the crypto stack themselves.
The customer list backs the pitch. Rain says it powers more than $3 billion in annualized transactions across 200-plus partners, including Western Union, Nuvei, and KAST [PR Newswire via Morningstar, Jan 2026]. Nuvei uses Rain-powered accounts to pay merchants seven days a week in stablecoins [Rain, Jan 2026]. Nomad, the Brazilian neobank, lets customers store and spend dollars for everything from coffee to Starlink subscriptions through the same infrastructure [Rain, Jan 2026]. Dakota, a business-banking startup, runs its stablecoin-backed card program on Rain's rails [Rain, retrieved 2026].
Why it could be big
The macro setup is, for once, doing the marketing. Stablecoin transaction volumes have moved from a crypto-trading curiosity to something Visa, Mastercard, and the Treasury all now reference in public materials. Sapphire Ventures, when it led the Series B, framed its thesis as "stablecoins as money," arguing the asset class had crossed from speculation into operational currency [Sapphire Ventures]. ICONIQ, Dragonfly, Bessemer, Galaxy Ventures, FirstMark, Lightspeed, Norwest, Coinbase Ventures, and Endeavor Catalyst have all written checks into the company [Rain, Jan 2026]. That cap table reads as a bet that whoever builds the boring middleware layer (issuance, settlement, compliance) for stablecoin payments captures meaningful share of a category that is no longer hypothetical.
Founder and CEO Farooq Malik has been making the case publicly that the winning version of stablecoins is the one consumers never notice [PYMNTS, 2025]. The card swipes. The payroll lands. The merchant gets paid Sunday. The blockchain part is invisible. If that framing holds, Rain is selling exactly the kind of infrastructure that becomes load-bearing for a generation of fintechs the way Stripe became load-bearing for online checkout.
Series A (Mar 2025) | 24.5 | $M
Series B (2024) | 58 | $M
Series C (Jan 2026) | 250 | $M
The team and traction
Malik co-founded Rain in 2021 with Charles Yoo-Naut, and the company is headquartered in New York with a remote-first engineering org [Rain, retrieved 2026]. The hiring pattern lines up with a company in scale mode rather than search mode: open roles include a Card Operations Manager, a Forward Deployed Engineer, and a Payments and Privacy Counsel [AshbyHQ, retrieved 2026]. Forward deployed engineers in particular are a tell. They are how infrastructure companies get large enterprise integrations live without the customer's team building the whole stack themselves.
The partnership flywheel is also turning. Rain announced a tie-up with Lithic to extend card issuance globally [Rain, retrieved 2026], works with Visa on settlement [Rain, retrieved 2026], and acquired Fern to strengthen its liquidity routing layer [Rain, retrieved 2026]. The company also joined the Financial Technology Association [FTA], which matters less for the press release than for what it signals about regulatory posture.
The honest counterfactual
The bear case is real and worth naming. Stablecoin infrastructure is a category where the rails could end up commoditized by issuers themselves (Circle, Tether, PayPal) or by incumbent processors who decide to bolt stablecoin settlement onto existing card programs. A $1.95 billion valuation on roughly $3 billion in annualized transaction volume bakes in aggressive assumptions about take-rate durability and continued regulatory clarity in the United States and abroad [Stabledash, Jan 2026]. What bulls answer: Rain's customer mix already skews to enterprises (Western Union, Nuvei) that have evaluated the alternatives and chose to route real money through Rain's APIs rather than build in-house, and the partnership with Visa suggests the card networks see Rain as a complement rather than a threat [Rain, retrieved 2026]. The 200-plus partner count is also the kind of distribution that gets harder, not easier, to dislodge once payroll and merchant settlement are running through it.
What to watch
The next twelve months should answer three questions. First, does the Series C capital go into geographic expansion, with Latin America and Asia the most obvious next markets given Nomad's presence in Brazil? Second, does Rain announce a tier-one US bank partnership, which would do for institutional credibility what the Visa relationship did for network credibility? Third, does the annualized transaction number cross $10 billion, the rough threshold at which infrastructure companies in payments stop being treated as bets and start being treated as utilities?
The stablecoin category has a lot of companies pitching the same future. Rain has the cap table, the customers, and the volume to be one of the two or three that actually defines it.
So here is the question for readers watching this space: when stablecoin settlement becomes invisible plumbing, do the rails accrue value, or does the value flow to whoever owns the customer relationship on top of them?