Silverflow and Griner Expand Partnership to Accelerate European Payment Processing

Silverflow and Griner have partnered to modernize card acquiring processing, beginning with a successful deployment in Cyprus. For fintech professionals, this represents a shift toward cloud-native infrastructure that allows payment processors to scale rapidly across European markets without the technical debt of legacy systems, significantly reducing merchant onboarding times and operational overhead.

What was announced

The partnership between Silverflow and Griner Finance Ltd aims to address the mounting pressure on European acquirers to replace aging infrastructure. Griner, which serves Payment Service Providers (PSPs), marketplaces, and eCommerce businesses, is utilizing Silverflow’s cloud-native platform to facilitate faster merchant onboarding and more resilient payment rails. This technical shift allows Griner to scale its offering without the significant overhead typically required to rebuild acquiring infrastructure from the ground up.

The collaboration has already gone live in Cyprus, serving as a successful pilot for the joint solution. Early performance metrics show month-on-month increases in transaction volumes and a marked improvement in the speed at which merchants can go live compared to Griner’s previous infrastructure. The solution is designed to handle both local and cross-border payment needs, providing a flexible and streamlined experience from the first transaction.

Following the Cyprus launch, the companies are preparing for expansion into other European markets, with specific projects already in development. By combining a modern card acquiring processing platform with a global payments processor, the partnership seeks to deliver a scalable model that meets the evolving demands of the European merchant landscape. Both companies point to the rollout as early validation that cloud-native acquiring supports the agility required by modern global payment processors.

"Griner moves fast. We needed a technology partner that could keep up. Silverflow gave us that from day one. When we launched, we went live quickly. Our merchants got what we promised them: a flexible, efficient and streamlined payment experience from the first transaction. Our vision requires an infrastructure that works now and scales with us. Silverflow was a natural partner to help us deliver that."

Sveta Bulshtein Krasnov, CCO at Griner Finance Ltd.

The companies involved

Silverflow is an Amsterdam-based fintech that provides a modern, cloud-native card acquiring processing platform. The company has established itself as a significant disruptor in the global payments ecosystem, having been featured in over 20 FF News reports regarding its integrations and market expansion. Silverflow positions its technology as a direct connection to card networks, bypassing the legacy technology stacks that often hinder traditional acquirers and providing greater data transparency for its partners.

Griner Finance Ltd is a global payments processor delivering solutions tailored for PSPs, marketplaces, and eCommerce businesses. The firm emphasizes speed and flexibility in its delivery of payment services, aiming to provide a streamlined experience for merchants. While Griner is currently scaling its operations across Europe, its recent activity in the Cypriot market serves as a primary case study for its ability to deploy modern infrastructure to meet merchant demand. Unlike many established processors, Griner focuses on maintaining personal relationships with merchants while utilizing cloud-native technology to handle the technical complexities of global payment processing.

What FF News has reported before

FF News has extensively tracked Silverflow’s growth and its role in the shifting payments landscape. In June 2026, we reported on how the company enabled partners to Quickly Connect to Discover® Network and Diners Club International® with Silverflow Integration, a move designed to broaden global card acceptance. This followed a broader industry report on the Real-Time Data Gap: 1 in 3 Payments Leaders Struggle with Critical Visibility, which highlighted that many payments leaders struggle with critical visibility—a challenge Silverflow’s cloud-native architecture seeks to solve. More recently, we covered how Finsei Launches Integrated Card Acquiring to Simplify Merchant Payment Ecosystems, reflecting a wider trend of firms bringing acquiring capabilities in-house to improve efficiency.

What this means

This partnership highlights the intensifying battle between legacy processing systems and cloud-native alternatives. As merchants demand near-instant onboarding and deeper data insights, legacy acquirers are under increasing pressure to either overhaul their stacks or risk losing market share to agile processors like Griner. The success in Cyprus suggests that the barrier to entry for high-performance acquiring is lowering, as "infrastructure-as-a-service" models allow smaller players to compete with established giants. However, the industry must now ask whether this rapid regional expansion will face regulatory friction or if the technology can truly remain "out of the way" across diverse European jurisdictions.