
EU-based payment processors that keep transaction data under European jurisdiction and GDPR compliance.

Mollie says it powers growth for over 250,000 businesses. Mollie says customers pay only for what they use. A customer says Mollie offers localised payments at scale.

Adyen says it offers one platform for payments, data and financial products. Adyen says one platform covers payments, data and financial products.

Mangopay says its wallet infrastructure lets enterprise platforms control and monetize payments. Mangopay says it offers wallet infrastructure and payouts.

Viva.com says it provides payments and banking services across Europe.
Adyen's home page describes one platform for payments, data and financial products and says it holds US, UK and EU banking licenses. It lists 200+ local payment methods and 150+ currencies. Mollie describes a platform for online and in-person payments, subscriptions, funding, reconciliation and fraud prevention, and says you can accept 38 payment methods with one integration.
Mangopay is the infrastructure provider for platforms and marketplaces. Its pricing page describes payment infrastructure for multi-party payments, where a platform holds, splits, collects and converts funds through wallets. It says pricing is agreed per platform, with no free tier or self-serve starter plan, and it calls itself a licensed electronic money institution.
Compare fees, settlement time, and supported payment methods in your customers' countries, and decide whether you need a marketplace model with split payments. Ask how refunds and disputes work, and whether the provider is licensed in the EU. Test in a sandbox before you move live traffic, and keep your old provider active until the new one has handled real orders.