The Enterprise Core is Evolving
For decades, the mainframe has powered the world's most critical enterprises, processing billions of secure transactions, protecting sensitive data and running the applications businesses depend on every day.
Today, AI is changing how organizations think about that foundation.
Rather than replacing the enterprise core, leading organizations are modernizing it, bringing AI closer to trusted enterprise data, automating operations and creating intelligent, resilient platforms for future innovation.
HCLTech helps enterprises transform their mainframe environments into AI-ready enterprise cores, enabling continuous modernization while preserving the stability, security and performance that mission-critical operations demand.
End-to-End Mainframe Services for the Intelligent Enterprise Core
Whether you're looking to optimize operations, adopt a consumption-based model or prepare your enterprise core for AI, HCLTech delivers services across the entire mainframe lifecycle.
Ensure resilient, secure and high-performing mainframe operations backed by one of the industry's largest teams of specialists.
Services
- Staff Augmentation and FLEXpert Services
- Managed Mainframe Operations
- Application Maintenance Services
- Application Development Services
Move to a flexible, consumption-based operating model that combines infrastructure, IBM software and managed services into a single engagement.
Services
- HCLTech AI-Powered Mainframe-as-a-Service (MFaaS)
- Linux Instant Capacity
Improve performance, reduce operating costs and maximize the value of your enterprise core through expert advisory and optimization.
Services
- Mainframe TCO Optimization
- Infrastructure Advisory and Modernization Enablement
- Software Rationalization
- Performance Optimization
- AI-Based End-to-End Observability
Enable intelligent operations and hybrid enterprise innovation while preserving the reliability of mission-critical environments.
Services
- Agile Application Services
- In-Place Application Evolution
- Hybrid Cloud Integration and Application Transformation
- Mainframe AI Agents
Trusted by the World's Leading Enterprises
lower total cost of ownership
MIPS under management
mainframe specialists
global mainframe customers
years of experience
disruption transition methodology
Resources
Partner Ecosystem










Frequently Asked Questions about Managed Mainframe Services and Solutions
With managed mainframe services, we help our clients optimize resource use, reduce operational overhead and benefit from shared infrastructure. This approach provides predictable costs, dynamic scaling and a lower total cost of ownership—enabling clients to focus on business growth rather than managing complex mainframe environments.
Clients choose us for our decades of hands-on mainframe experience, advanced automation capabilities and flexible support models. We offer tailored solutions, industry-leading modernization frameworks and a relentless focus on reliability—making HCLTech a trusted partner for mainframe transformation and ongoing operations.
Our mainframe hosting services offer flexible, asset-based models that enable clients to scale resources up or down as needed. By leveraging shared infrastructure and cloud integration, we help organizations manage fluctuating workloads efficiently—ensuring performance and cost-effectiveness as their needs evolve.
Yes, we enable seamless integration of mainframe workloads with hybrid cloud environments. Our expertise in connectivity, data access and API management ensures clients can leverage the strengths of both mainframe and cloud platforms—supporting innovation, scalability and digital transformation initiatives.
We maintain a robust pool of experienced mainframe professionals and invest in continuous upskilling. Our automation-first approach also reduces reliance on scarce skills, ensuring clients benefit from consistent, high-quality support—even as the industry faces ongoing talent shortages.
We deliver value by combining deep mainframe expertise, automation and proven modernization frameworks. Our services streamline operations, improve reliability and accelerate transformation—helping clients maximize the return on their mainframe investments while supporting integration with cloud and digital ecosystems for future-ready operations.
Our mainframe infrastructure services cover 24x7 operations, system administration, capacity management, performance tuning, batch scheduling, incident management and modernization support. We provide end-to-end coverage, ensuring environments remain secure, compliant and optimized for both current and future business needs.
We modernize mainframes through proven approaches like rehosting, re-platforming, automated refactoring and API or cloud integration. Using our ADvantage Modernize framework, we deliver incremental, low-risk modernization—helping clients unlock agility, reduce technical debt and extend the value of their mainframe investments.
Our automation-led services streamline repetitive tasks, reduce manual errors and standardize operations. By automating processes like monitoring, incident response and resource provisioning, we help clients achieve greater efficiency, faster issue resolution and improved reliability across their mainframe environments.
We use incremental, non-disruptive modernization strategies—such as phased migrations, wrapper interfaces and robust fallback options. This approach minimizes risk and ensures clients experience uninterrupted operations, even as we transform their mainframe environments for future readiness.

