Top Payments Startups in 2026

RevenueCat removes the headaches of building and scaling in‑app subscriptions. Since graduating from YC’s S18 batch we’ve grown into the default monetization platform for mobile: we’re in >40% of newly shipped subscription apps, we process $12B+ in annual purchase volume, and we help everyone from a solo dev in Brazil to the OpenAI mobile team understand and grow their revenue. We’re a remote‑first crew of 150+, spread across 25+ countries, and guided by values we actually practice: Customer Obsession, Always Be Shipping, Own It, and Balance. If you want your work to touch hundreds of millions of end‑users (and help the developers behind them get paid), you’ll fit right in.

Modern Treasury builds payment operations software for high-growth companies. Our API and app modernize payment operations for disruptive companies building products that move and track money—think: rideshare marketplaces, digital wallet, fiat-crypto onramps—providing tools that help them grow faster. Enabling real-time payments, automatic reconciliation, continuous accounting, and compliance solutions, Modern Treasury’s platform is used to reconcile over three billion dollars per month. Founded in 2018, San Francisco-based Modern Treasury is backed by Benchmark, Altimeter, SVB Capital, Salesforce Ventures, NewView Capital, and Y Combinator.

SIGNIFYD’s full-service cloud platform simplifies fraud detection through a financial guarantee, allowing businesses to increase sales while reducing fraud losses. SIGNIFYD is in use by multiple companies on the Fortune 1000 and Internet Retailer Top 500 list.

OfferUp is changing how people buy and sell locally by making it as easy as taking and sharing a photo from your phone. We are not just about connecting buyers and sellers; we are about creating a simple and safe marketplace that changes people’s lives. OfferUp is a top 10 shopping app on Google Play and a top 20 app in the Lifestyle category on iTunes.

Ripple is the leading provider of crypto solutions for businesses. Founded in 2012, our vision is to enable a world where value moves as seamlessly as information flows today—an Internet of Value. As a leading enterprise blockchain company with products in commercial use by hundreds of customers across 50+ countries, our unique crypto solutions are faster, more transparent, and more cost effective than traditional financial services – solving inefficiencies that have long defined the status quo.

Dashlane's mission is to make security simple for millions of organizations and their people. We empower businesses of every size to protect company and employee data while helping everyone easily log in to the accounts they need—anytime, anywhere. Our global team with offices in Paris, New York, and Lisbon is united by a strong sense of community and passion for improving the digital experience. Over 15 million users and 20,000 businesses in 180 countries use Dashlane for a faster, simpler, and more secure internet.

Riskified is the AI platform powering the eCommerce revolution. We use cutting-edge technology, machine-learning algorithms, and behavioral analytics to identify legitimate customers and keep them moving toward checkout. Merchants use Riskified to increase revenue, prevent fraud, and eliminate customer friction. Riskified has reviewed hundreds of millions of transactions and approved billions of dollars of revenue for merchants across virtually all industries, including a number of Fortune 500 companies.

Stripe is a software platform for starting and running internet businesses. Millions of businesses rely on Stripe’s software tools to accept payments, expand globally, and manage their businesses online. Stripe has been at the forefront of expanding internet commerce, powering new business models, and supporting the latest platforms, from marketplaces to mobile commerce sites. We believe that growing the GDP of the internet is a problem rooted in code and design, not finance. Stripe is built for developers, makers, and creators. We work on solving the hard technical problems necessary to build global economic infrastructure—from designing highly reliable systems to developing advanced machine learning algorithms to prevent fraud.

The world’s first checkout experience platform, Bolt offers a lightning-fast, one-click checkout, and connects millions of shoppers to retailers through a unified, cross-brand network. Hundreds of forward-thinking retailers like Forever 21, Badgley Mischka, Milk Makeup, and more rely on Bolt to convert, retain, and delight shoppers.

Affirm is reinventing credit to make it more honest, transparent, and friendly. Our mission is simple: deliver honest financial products to improve lives. Started by PayPal co-founder Max Levchin, Affirm gives you the flexibility to buy now and make simple monthly payments for big purchases. Unlike traditional credit options, we show you exactly what you’ll owe up front: no penalty fees, no compounding interest. By letting you pay over time, Affirm is empowering consumers to advance their financial well-being.