Modernise legacy systems with 6B’s legacy software modernisation services. As a digital transformation partner, we help organisations update and re-engineer outdated platforms to improve performance, reduce technical debt, and enable long-term growth — all while preserving critical business logic and data.
Get in touchWhether you're developing new bespoke software or extending existing software with Legacy Software Modernisation, Whether you're developing new bespoke software or extending existing software with
Whether you’re migrating to the cloud, refactoring legacy codebases, or replacing ageing systems with modern architecture, we help you move forward with confidence, control, and continuity.
Legacy systems often sit at the heart of an organisation’s operations — powering essential processes, storing valuable data, and supporting long-standing customer relationships. But as technology evolves, these systems can become barriers to agility, scalability, and security. Modernising legacy software is about more than just upgrading code — it’s about enabling your organisation to move faster, reduce risk, and unlock new capabilities.
At 6B, we work with clients to modernise critical systems in a way that respects existing workflows while preparing for the future. That might mean containerising monolithic applications, moving to microservices, rebuilding with modern frameworks, or replatforming to the cloud. We assess your current system, identify the risks and opportunities, and chart a clear, phased path to modernisation that aligns with your operational and commercial goals.
Our team brings experience in working with outdated technologies like COBOL, VB6, Classic ASP, and on-prem ERP systems — helping businesses transition to modern stacks such as .NET Core, Node.js, React, and cloud-native services across AWS, Azure, and GCP.
Our approach to legacy modernisation begins with discovery and assessment. We work closely with your team to understand the business role of your existing system, its architecture, dependencies, and data flows. This enables us to build a complete picture of what needs to change — and what needs to be preserved.
We evaluate modernisation strategies ranging from full rebuilds and re-architectures to wrapper-based approaches, API enablement, and gradual migration. Our goal is always to minimise disruption while delivering meaningful improvements in performance, maintainability, and user experience.
From there, we move into delivery — using agile, iterative methods to modernise components in manageable stages. We incorporate automated testing, CI/CD pipelines, and robust monitoring from the start, ensuring each modernised module is stable, secure, and production-ready. When needed, we also support parallel run strategies and data migration services to ensure a seamless cutover from legacy to modern.
Throughout the process, we prioritise business continuity, stakeholder involvement, and measurable outcomes — whether that’s faster performance, lower costs, better integration, or easier updates.
6B combines deep technical expertise with a pragmatic, business-first approach to legacy software modernisation. Our team includes full-stack developers, software architects, cloud engineers, and system integrators with experience in both legacy and modern technology ecosystems. That dual perspective allows us to modernise with care — avoiding unnecessary disruption while maximising long-term value.
We’ve helped clients across finance, healthcare, logistics, government, and more to transform ageing systems into secure, scalable digital platforms. Whether it’s modernising a legacy CRM, migrating an internal tool to the cloud, or rebuilding a customer-facing portal, we deliver solutions that are robust, future-proof, and aligned with your strategic goals.
With 6B, legacy modernisation isn’t just a technical upgrade — it’s a foundation for innovation, flexibility, and sustainable growth. We help you bridge the gap between old and new, so your technology keeps pace with your ambition.
