List of the Top 3 Payment Processing Software for Alternative Payments in 2026

NMI Payments transforms payments from a backend function into a strategic growth driver. Designed for software companies. SaaS platforms, ISVs and ISO partners, it enables you to embed, brand, and monetize payments directly within your software—without becoming a PayFac or taking on compliance complexity. As a full-stack processor, acquirer, and technology partner, NMI manages underwriting, risk, and regulatory oversight behind the scenes. The result: faster go-to-market, stronger brand control, and new recurring revenue streams. With modular design and white-label flexibility, NMI adapts to your business model, whether you’re processing payments online, in-store, in-app, or unattended. Key Benefits Launch white-labeled payments in weeks, not months Control pricing, share in transaction revenue, and own the customer relationship Built-in compliance, risk, and fraud prevention tools Flexible integration via no-code, low-code, or full API access Developer-First Experience NMI’s developer environment bridges business and technical needs. Developers gain instant sandbox access, prebuilt SDKs, and intuitive APIs to test, integrate, and deploy quickly. Guided onboarding, dynamic sandbox simulations, and drop-in components make payments easier to build and maintain. Business teams can explore revenue opportunities through self-service tools and instant earnings insights. With NMI Payments, you can embed and scale payments without losing control—powering faster launches, stronger retention, and lasting growth

Datagate provides a software-as-a-service and telecom billing solution tailored for managed service providers (MSPs) that offer unified communications as a service (UCaaS) VoIP, as well as mobile voice and data solutions. It seamlessly integrates with various widely-used software platforms favored by MSPs, such as ConnectWise Manage and QuickBooks, ensuring a smooth operational flow. In addition to billing, Datagate and its partners are equipped to manage all aspects of telecom tax and compliance requirements effectively. This comprehensive approach allows MSPs to focus more on their core business while leaving the complexities of billing and compliance to experts.

Corefy is a payment orchestration and white-label infrastructure platform built for payment institutions, PSPs, fintech companies, online platforms, and large merchants that operate complex payment setups. The platform helps businesses manage their entire payment ecosystem through a single system. It brings together payment and payout processing, routing and cascading logic, analytics, tokenisation, anti-fraud controls, and operational tools into one configurable infrastructure layer. Instead of maintaining numerous direct integrations with different providers, companies can connect to Corefy and access a network of more than 600 ready-to-use connectors with global PSPs, acquirers, and alternative payment providers. A key capability of the platform is its advanced routing and cascading engine powered by over 100 configurable attributes, including metadata. Businesses can define detailed rules that determine how transactions are distributed across providers based on parameters such as geography, BIN, currency, performance indicators, or risk signals. This flexibility allows teams to optimise approval rates, balance payment traffic, and improve operational stability without rebuilding their infrastructure. Corefy also supports organisations launching their own payment products through white-label capabilities. The platform includes tools for merchant account hierarchy management, role-based permissions, reporting, and operational oversight. For companies that already operate payment infrastructure but want to expand their connectivity, Corefy offers Payment bridge — a solution that enables fast deployment of new payment integrations without complex system migrations. Corefy’s infrastructure has processed over 1 billion transactions and supports payment providers and digital businesses worldwide.