Quickpay ApS (headquartered in Aarhus, Denmark) offers an online payment gateway for e-commerce. Founded in 2004, it helps 30,000+ merchants integrate payments (credit/debit cards, MobilePay, Klarna, Google Pay, Apple Pay, etc.) into their webshops. The platform processes over 4 million transactions per month. It provides plugins for popular platforms and an API for custom integrations. In 2021, Quickpay became part of Unzer, a European fintech group. The site lists the Danish HQ address and emphasizes security and flexibility.