Question: I need a secure and scalable payment infrastructure solution that can support fast-growing companies and new products.

For a secure and scalable payment infrastructure solution, ACI Worldwide is a good option. The company's platform spans multiple payment needs, including acquiring, enterprise payments, real-time payments and fraud management. With a global presence and the ability to process tens of billions of transactions each year, it offers secure and efficient digital payment processing, making it a good option for businesses looking to modernize their payment services and lower operational costs.

Another good option is Inai, a full-stack payment platform designed to streamline payment operations for global businesses. It connects to multiple payment service providers for payments, payouts, transaction optimization and end-to-end reconciliation. With enterprise-grade security and the ability to process large volumes of transactions, Inai is a good option for e-commerce, subscription and platform businesses that want to reduce payment failure rates and increase revenue.

Basis Theory is another option. It provides a programmable vault platform to securely manage commerce flows and compliance data. With features like recurring payment services, custom payment flows and compliance certifications, Basis Theory is designed to help businesses build secure payment experiences and scale. It's a good option for developers and businesses that want to securely manage payment flows and lower churn.

For businesses that want payment analytics and routing, ProcessOut offers a powerful platform. It can connect directly to multiple payment providers and uses AI to optimize routing for each transaction. With features like Smart Routing, Dynamic Checkout and a secure data vault, ProcessOut is designed to scale and improve payment performance, making it a good option for companies that need to connect to multiple payment providers.