London, UK – January 2026. Smart Payment Technologies has partnered with Castles Technology to enhance its G8 payment gateway by integrating Castles’ advanced hardware platforms with its existing payment technology ecosystem.
The partnership between the two industry leaders brings together secure, PCI P2PE–certified payment processing with flexible, device-agnostic hardware, enabling merchants and ISVs to deploy scalable payment solutions across multiple environments. Initial deployments will support sectors including EV charging, unattended services, hospitality, entertainment, and retail, where reliability and adaptability are critical.
By combining Castles Technology’s global hardware portfolio with Smart Payment Technologies’ software-led gateway, the collaboration is designed to help businesses reduce failed transactions, support offline payments, and operate more effectively across borders.
G8, Smart Payment Technologies’ in-house payment platform, provides:
- Flexible hardware and gateway architecture, adaptable to a wide range of customer use cases
- Simplified ISV onboarding, enabling faster integration and deployment
- Offline payment capability, ensuring continuity during connectivity outages
- Auto-retry functionality, improving acceptance rates and reducing transaction failures
- White-label customisation, allowing partners to tailor the experience to their brand
- Multi-currency support, supporting international expansion
Jean-Philippe Niedergang, Acting Group CEO and EMEA-PACIFIC-LATAM CEO at Castles Technology, said: “Castles Technology’s agnostic approach to payments enables us to support a wide range of sectors and customer requirements. Partnering with Smart Payment Technologies allows us to extend that flexibility through a strong gateway proposition that is well suited to the UK market and beyond.”
Will Stone, CTIO at Smart Payment Technologies, added: “This collaboration reflects our commitment to delivering best-in-class payment solutions by leveraging Castles Technology’ extensive range of innovative hardware and their versatile integration methods, which perfectly complement our technology ecosystem.
Castles Technology’s global approach to partnership enables us to offer adaptable payment solutions across multiple sectors throughout the world, aligning seamlessly with the diverse customer base we support. By combining Castles Technology’ hardware excellence with our advanced payment capabilities, we are creating solutions that meet the evolving needs of these markets.
About Smart Payment Technologies
Smart Payment Technologies is a global technology partner at the forefront of the payments industry with over 20 years of experience. Smart Payment Technologies’ expertise spans solution development, implementation services, estate management, compliance, and security. Whether businesses are scaling up or tackling new challenges, Smart Payment Technologies payment specialists guide them every step of the way, ensuring a seamless and secure payment experience.
Smart Payment Technologies has an extensive partner network with multiple locations across the world supporting customers in 57 countries and believe in creating Innovative and Versatile payment solutions with Limitless Payment Possibilities.
Website: https://www.smartpaytech.com
About Castles Technology
Castles Technology is a global leader in payment acceptance solutions, delivering secure, reliable, and innovative Android-based payment terminals and services that enable a seamless payment experience. The company partners with thousands of customers worldwide, including banks, merchants, FinTechs, acquirers, ISVs, and PSPs. It has deployed millions of POS terminals to support retailers of every size, from local businesses to global enterprises.
As a pioneering Android payment acceptance solution provider, Castles Technology combines powerful device performance with advanced security and localized market expertise, ensuring global reach with strong regional support. Backed by more than 30 years of industry experience, Castles Technology’s global network of payment experts continually innovates to anticipate, shape, and advance the future of commerce.
Driven by a commitment to innovation and sustainability, Castles Technology aims to create meaningful, long-term impact through its products, services, and operations, supporting smarter commerce, responsible technology, and a stronger payment ecosystem.
Website: https://www.castlestech.com/
