Adyen is a global payment technology company headquartered in the Netherlands. It provides a unified commerce platform that enables businesses to process payments and manage financial services across online, mobile and in-store channels. The Adyen site highlights that the platform handles very high transaction volumes (approximately €1.4 trillion annually) and maintains extremely high availability (99.999% uptime). It supports over 150 currencies and 200+ local payment methods worldwide. (Adyen is publicly traded; licensing details and investor info are available in its investor materials, but the main site focuses on product stats.)