Top 10 Best Banking Custom Software of 2026

OutSystems is a premier low-code development platform that empowers banks to rapidly build, deploy, and manage custom enterprise applications tailored for banking needs like core systems, customer portals, and compliance tools. It offers visual development tools, AI-assisted coding, and seamless integration with legacy banking systems and APIs. With robust security certifications (e.g., ISO 27001, SOC 2) and scalability for high-volume transactions, it's designed for mission-critical financial services.

Mendix is a low-code development platform designed for building custom enterprise applications, particularly suited for banking with its support for secure, scalable solutions like customer portals, compliance tools, and backend integrations. It enables visual modeling and rapid prototyping, allowing teams to develop, deploy, and manage apps without extensive coding. In banking, it excels at connecting legacy core systems with modern digital services while ensuring regulatory compliance such as GDPR and SOC 2.

Pega is a leading low-code platform specializing in business process management (BPM), customer relationship management (CRM), and intelligent automation, with deep capabilities tailored for banking custom software solutions. It enables banks to build highly customizable applications for core processes like loan origination, KYC compliance, fraud detection, customer onboarding, and regulatory reporting. Pega's Infinity platform leverages AI and decisioning tools to deliver personalized customer experiences and operational efficiency at scale.

Appian is a low-code platform designed for building enterprise-grade custom applications, particularly excelling in banking for automating complex processes like loan origination, KYC compliance, risk management, and customer onboarding. It integrates business process management (BPM), casework, records management, and AI-driven insights into a unified environment to accelerate digital transformation. With robust security certifications (e.g., SOC 2, GDPR compliant) and seamless integrations with core banking systems, it enables banks to deploy scalable, regulated solutions rapidly.

Backbase is a composable digital banking platform that empowers financial institutions to build personalized, omnichannel customer experiences using low-code tools and pre-built widgets. It integrates deeply with core banking systems, enabling rapid customization of apps for web, mobile, and other channels without heavy coding. The platform focuses on engagement banking, leveraging customer data for real-time personalization and journey orchestration. It powers digital transformation for over 150 banks globally.

Temenos offers a comprehensive suite of banking software solutions, including Temenos Transact for core banking, Infinity for digital channels, and specialized modules for payments, wealth management, and risk. It enables financial institutions to build highly customizable, scalable platforms that support omnichannel experiences and regulatory compliance across retail, corporate, and Islamic banking. With a cloud-native, API-first architecture, Temenos facilitates rapid innovation and integration with third-party ecosystems.

Finastra offers a comprehensive portfolio of financial software solutions tailored for banking, including core banking systems, lending, payments, treasury management, and capital markets platforms. Their Fusion suite provides modular, scalable tools that support retail, corporate, and universal banking operations with strong regulatory compliance features. Through the FusionFabric.cloud platform, banks can customize and extend functionalities via open APIs, enabling innovation and integration with third-party services.

Thought Machine's Vault is a cloud-native core banking platform that enables financial institutions to build, deploy, and manage highly customizable banking products at scale. It replaces legacy core systems with a modern, API-first architecture supporting real-time processing, complex product modeling, and seamless integration. Designed for innovation, Vault allows banks to launch new products in days rather than years, powering operations for major players like JPMorgan and Standard Chartered.

Mambu is a cloud-native SaaS core banking platform designed for financial institutions to build, deploy, and scale digital banking products rapidly. It features a composable, API-first architecture that supports core functionalities like deposits, lending, payments, savings, and cards, enabling seamless customization and integration with third-party services. This modular approach allows banks and fintechs to avoid traditional monolithic systems and adapt quickly to market needs.

nCino is a cloud-based Bank Operating System built natively on Salesforce, designed to unify and digitize banking operations for financial institutions. It provides end-to-end solutions for loan origination, deposit management, client onboarding, compliance, and relationship management. The platform enables banks to streamline workflows, reduce risk, and deliver personalized client experiences across commercial, retail, and mortgage lending.