When the 2026 World Cup kicks off in Mexico this June, fans in Mexico City, Guadalajara, and Monterrey will find something that would have been unthinkable a decade ago: taco stands and corner stores ready to take their cards. Mexico’s banks had decades to wire the country for digital payments. The paytechs did it in less than one.
How a Regulatory Move Changed Everything
Accepting a card payment used to be a privilege in Mexico. Before 2014, merchants had to convince a bank to give them a Point-of-Sale (POS) terminal — a process that came with fees above 3%, mountains of paperwork, and a strong preference for large retailers. Tiendas, taquerias, and market vendors, the backbone of Mexican commerce, were effectively locked out.
By 2013, US consumers were already using cards for the majority of in-person purchases. In Mexico, 9 out of 10 transactions were still in cash. Then the CNBV, Mexico’s banking regulator, made a pivotal move: it began allowing non-bank entities to process card payments without a full banking license. These companies were called agregadoras, and they would change everything.
Companies like Clip, which had been operating in a regulatory grey zone since 2012, finally had legal standing. By 2017, non-bank POS terminals had already overtaken the banks. Mexico went from fewer than one million POS terminals in 2013 to over 6.4 million today: a 7x increase in just over a decade, almost entirely driven by non-banks.
“Mexico’s banks had decades to wire the country for digital payments. The paytechs did it in less than one.” — Kushki México
The implications go beyond payment convenience. Every POS device in a corner store now doubles as a bridge from the informal economy to the formal one. Those millions of new terminals are already generating transaction histories for merchants who never had one. And where transaction histories go, credit follows.
That infrastructure is now the foundation for everything below. The neobanks, BNPL platforms, and crypto wallets in this ranking are growing fast in part because millions of Mexicans have already been pulled into the digital financial system through a simple card reader.
The 2025 Rankings: Fastest-Growing Fintechs in Mexico
From a neobank issuing 10% of all new credit cards in the country to a crypto platform processing $12 billion a year, Mexico’s fintech sector is expanding faster than almost anywhere else in Latin America. Below is the definitive 2025 ranking, ordered by user and transaction growth rates.
1. Plata — The Rocket Ship
No startup in Mexican fintech history has grown faster than Plata. Founded in 2023, it crossed 2 million users in roughly 32 months — a pace that rivals Nubank’s early trajectory in Brazil. It is simultaneously issuing approximately 10% of all new credit cards in Mexico, a staggering share for a company barely three years old.
Investors have taken notice: Plata’s valuation reached $3.1 billion in 2025. The company scaled its headcount from 100 to over 3,000 employees in that same window. Year-on-year user growth is estimated above 100%, making it the clear number one on this ranking.
2. Nu México — The Giant Still Accelerating
Nubank’s Mexican subsidiary is the largest digital bank in the country by a wide margin — and it is still growing at a pace most challengers would envy. It hit 10 million customers at the start of 2025, after doubling its base over the prior 12 months, then added a further 3 million by October to surpass 13 million total.
Nu México now serves approximately 14% of the adult Mexican population. Customer growth ran at 52% in the first half of 2025 alone. With 6.6 million credit cards in circulation and a product set expanding into savings and investment, it shows no signs of plateauing.
3. Bitso — Crypto Becomes a Utility
Bitso is no longer just a crypto exchange. It processed over $12 billion in transactions in 2024 — a 90% year-on-year jump — and its 4.4 million Mexican users make Mexico the company’s strongest market in Latin America. Stablecoin adoption has been the real story: Bitso facilitated over $80 billion in stablecoin transactions across the region, largely driven by demand for cheaper remittance corridors between the US and Mexico.
Mexico receives more than $60 billion per year in remittances — the third-largest flow in the world, and crypto rails are now cutting meaningfully into the wire-transfer market. Bitso’s 13% user growth in 2024, on top of an already large base, places it firmly in the top three.
4. Spin by OXXO — The Convenience Store Bank
OXXO, the ubiquitous convenience chain with more than 24,000 stores across Mexico, launched Spin as its digital wallet, and the results have been remarkable. Spin reached 15.3 million registered users by Q3 2025, up 22.3% year on year, with 9.9 million active users recording 84 million monthly transactions. In Q3 alone, it added 800,000 new users, while transaction volume jumped 38.7% quarter on quarter.
Spin is now applying for a full banking license. Its distribution advantage — every OXXO store is an instant sign-up point and, increasingly, a POS node in its own right — gives it an edge no purely digital player can easily replicate.
5. Kueski Pay — Buy Now, Pay Later Takes Off
Mexico’s BNPL market is growing at 33.5% annually and is projected to reach $6.09 billion in 2025. Kueski Pay is the dominant force in that segment, with more than 8 million users and a proven ability to lift merchant conversion rates by 30 to 50%. The company has expanded beyond e-commerce into in-store QR payments, essentially another layer on top of the POS infrastructure that paytechs built.
For the millions of Mexicans who still do not qualify for a traditional credit card, BNPL has become the de facto credit product. Kueski is the brand most associated with it.
6. Stori — Credit Cards for the Underbanked
Stori has built its business around one insight: tens of millions of Mexicans are creditworthy but have never been given a chance to prove it. By October 2025, it had 4 million users, up an estimated 25–30% year on year, with a long-term target of 20 million. A co-branded card with Shein, launched in late 2024, accelerated acquisition among younger, digitally native consumers. Stori has since expanded to Colombia and shows no signs of slowing its core Mexican growth.
7. Konfío — SME Lending Goes Institutional
Small businesses are the backbone of Mexico’s economy and among the most underserved by traditional banks. Konfío lends to them digitally and plans to deploy MXN 44 billion in loans over the next three years as it transitions toward a full banking license. More than 80% of its borrowers are taking a formal business loan for the first time — a group that, not coincidentally, overlaps heavily with the merchants who gained their first transaction histories through a non-bank POS terminal.
8. Klar — A Neobank Regrouping With Fresh Capital
Klar’s user growth has been more moderate than the top tier. The company spent part of 2024 managing credit quality issues that arose during its rapid expansion phase. But a $190 million fundraise in 2025 signals renewed confidence from investors, and its loan book is now stabilising. Non-performing loans are trending down, the product roadmap has broadened, and improving momentum earns it a place on this list.
The Big Picture
What unites every company on this list is timing. Mexico’s structural conditions: a young population, high smartphone penetration, historically low bank account ownership, and one of the world’s largest remittance corridors, have converged with a wave of well-capitalised founders willing to build for the bottom of the income pyramid rather than the top.
But beneath all of it is infrastructure. The 6.4 million POS terminals that paytechs quietly deployed over the past decade created the first generation of formally trackable consumers and merchants. The neobanks, BNPL platforms, and crypto rails growing at 50–100% per year are, in many cases, building on top of that foundation.
The result is a market growing at 20% annually, with revenues up 31% in 2025. Plata and Nubank are setting the pace in neobanking. Bitso is turning crypto into a remittance utility. Spin is proving that distribution beats everything. And the categories of BNPL, SME lending, and credit for the underbanked are still far from saturation. The next two to three years may see even faster growth and several more unicorns emerge from Mexico’s fintech sector.
