Unlocking Enterprise Agility with AI-powered Mainframe Modernization
Mainframes have long been central to enterprise operations, yet they can quickly become a barrier to growth and agility. The conversation has now shifted from whether to modernize to how to modernize effectively while elevating experiences and driving innovation and resilience.
HCLTech is transforming mainframes from rigid, siloed systems into adaptive platforms that power business innovation. The result? Faster programs, smarter operations and future-ready applications keep enterprises ahead of the curve.
Transforming the Core: A Blueprint for AI-powered Mainframe Modernization
The strong momentum in modernization investments shows that organizations are no longer content with incremental optimization—they see modernization as essential to staying competitive, resilient and agile in a digital-first world. By using GenAI to decode legacy code and Agentic AI to orchestrate modernization at scale, enterprises can transform these systems into engines of innovation.
To capture these dynamics, HCLTech, in collaboration with Everest Group, has released a research-based whitepaper on the evolving role of mainframes in an AI-enabled era.
of enterprises are already investing in mainframe modernization
of enterprises are planning to use GenAI for legacy code understanding
Of enterprises expect Agentic AI to be core to mainframe strategies in 1–3 years
Pioneering the Transformation of Core Systems for the Digital Age
We redefine how enterprises leverage mainframe systems by blending innovation, sustainability and operational excellence. Our distinctive approach integrates advanced technologies, specialized innovation labs and productized services to deliver scalable, resilient and future-ready solutions. By focusing on seamless experiences across customers, employees and operations, we help businesses unlock new value while achieving agility and efficiency. With sustainability embedded in every process, we ensure that modernization efforts are both impactful and responsible, driving long-term success in a rapidly changing digital landscape.
Unlocking GenAI's potential
Our patented HCLTech AI Force infuses GenAI into mainframe development, boosting engineering velocity and quality
Innovation Labs
Integrating Innovation Labs and automation tools to accelerate modernization, code conversion and deployment
Mainframe as a Service (MFaaS)
Flexible, scalable and cost-effective mainframe solutions, eliminating upfront hardware investments and reducing maintenance costs
Accelerating delivery agility
Achieve agility with productized services, industrialized delivery units and improved machine-to-man ratios
Our Services
Revitalization
Enhance mainframe assets through in-place modernization services, performance optimization and technology upgrades. Leverage AI-driven insights to improve scalability, reduce costs and extend system lifecycles—while ensuring reliability, resilience and efficiency.
Application re-hosting
Rehost applications to cost-effective simulated environments with minimal changes. GenAI-assisted workload optimization to streamline infrastructure operations, reduce costs and ensure business continuity with minimal disruption.
Application migration
Migrate applications with automated refactoring to modern platforms, re-platforming databases and optimizing performance. GenAI enables seamless transitions by autonomously mapping dependencies, accelerating roadmap execution and minimizing risks.
Application transformation
Rebuild applications using cloud native architectures or replace mainframe workloads with modern solutions. Infuse GenAI and AI agents to unlock automation, scalability and agility—aligning with evolving business goals and driving long-term innovation.
Transforming securities operations with AI-powered agility
Modernizing critical systems to drive agility, scalability and real-time intelligence
Learn more
Enabling superior Telecom services for Australian homes and businesses
Empowering legacy systems for next-generation service delivery
Learn morePartner Ecosystem
Analyst Recognition
HCLTech recognized as Customers' Choice in 2025 Gartner Peer Insights for Public Cloud IT Transformation Services
Mehr erfahrenHCLTech recognized as a Leader in ISG Digital Engineering Services, 2024
Mehr erfahrenHCLTech Recognized as a Top Three Provider in Mainframe Services by Everest Group
Mehr erfahrenHCLTech positioned as a Leader in 2024 Gartner® Magic Quadrant™ for Custom Software Development Services
Mehr erfahren
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How can modernization minimize business disruption?
AI, especially GenAI and Agentic AI, accelerates mainframe modernization by automating code analysis, mapping dependencies and orchestrating transformation workflows. At HCLTech, we utilize AI to reduce manual effort, minimize risks and expedite migration—enabling clients to modernize legacy applications more efficiently and unlock innovation more quickly.
We take a holistic, phased approach to mainframe migration. HCLTech leverages advanced automation, GenAI insights and proven frameworks to assess, rehost, refactor, or rearchitect client systems. Our focus is on minimizing business disruption, optimizing costs and ensuring secure, seamless transitions to modern platforms or the cloud.
GenAI analyzes and interprets complex legacy code, automatically mapping dependencies and identifying opportunities for modernization. At HCLTech, we use GenAI to accelerate code comprehension, simplify documentation and create actionable insights—enabling faster, safer and more accurate mainframe modernization for our clients.
Modernizing legacy applications can present challenges, including complex dependencies, data migration risks, skill gaps and potential business disruptions. HCLTech addresses these challenges with proven methodologies, AI-driven automation and deep mainframe expertise—helping clients navigate technical, operational and organizational hurdles to achieve successful modernization.
AI agents automate critical tasks during mainframe modernization, from code analysis to testing and migration orchestration. At HCLTech, we use Agentic AI to accelerate workflows, reduce errors and ensure consistent outcomes—empowering clients to modernize legacy applications efficiently and with minimal manual intervention.
Mainframe modernization delivers agility, cost savings and improved scalability. At HCLTech, we help clients achieve seamless integration with cloud, enhanced system resilience and faster time-to-market. Modernization also extends the value of existing investments, supports regulatory compliance and positions enterprises for future growth in a digital-first world.
Mainframe rehosting with HCLTech involves moving applications to modern, cost-effective environments with minimal code changes. We use GenAI to optimize workloads, streamline infrastructure and ensure business continuity. Our rehosting services include assessment, migration planning, testing and post-migration support—reducing risk and accelerating time-to-value.
Enterprises should consider migrating from mainframe to cloud when seeking agility, scalability and cost optimization. At HCLTech, we advise clients to move when legacy systems limit innovation, integration, or regulatory compliance. Cloud migration is ideal for organizations aiming to modernize legacy applications and future-proof their core operations.
Mainframe as a service (MFaaS) reduces costs by shifting from capital-intensive infrastructure to a flexible, consumption-based model. At HCLTech, we manage operations, optimize workloads and leverage cloud efficiencies—helping clients lower total cost of ownership while maintaining performance, security and compliance.
Minimizing business disruption requires careful planning, robust testing and phased execution. HCLTech leverages automation, GenAI insights and proven frameworks to ensure smooth transitions. We prioritize business continuity, keep stakeholders informed and provide ongoing support—so clients can modernize with confidence and minimal operational impact.
