Stripe is the global benchmark for payment APIs with best-in-class developer experience, supporting 135+ currencies and 100+ payment methods from startups to enterprises.
Paymill was founded in 2011 in Munich, Germany as a European-focused payment API platform. Acquired by ING Group in 2019, it offers clean payment APIs and subscription billing for European merchants.
Payment Depot, founded in 2014 in Irvine CA, pioneered the membership + interchange wholesale pricing model for credit card processing, saving US merchants 30-50% on processing fees.
NMI (Network Merchants) was founded in 2000 in Chicago, Illinois, as a developer-focused full-stack payment gateway platform supporting 200+ US acquirers and flexible API integration.
SiteLock is a website security company headquartered in Scottsdale, Arizona, United States, providing malware scanning, DDoS protection, and PCI compliance detection, often bundled with web hosting services.
Authorize.Net is a Visa-owned US-based payment gateway founded in 1996, serving millions of US merchants with an all-in-one gateway and merchant account solution.