AS/400 Solutions

Our IBM iSeries midrange modernization solutions deliver modern, Cloud-enabled applications and databases that are functionally equivalent to their legacy counterparts, eliminating the hassle and expense of the mainframe. This reduces cost, allows for deeper integration, and enables customization to meet business requirements. These solutions are great for migrating AS/400 based applications to Cloud-native languages such as Java and C#, and legacy databases to relational models.

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Your Salvation is Automation: Leverage post-modernization automation

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Why modernize?


Scarcity of domain expertise

Developers and database administrators who understand iSeries technology are reaching retirement age, resulting in a steadily diminishing talent pool. As this shortage grows, the costs and risks of relying on legacy languages and databases will continue to rise.

Limited flexibility

Companies are rapidly moving to modern environments and practices such as DevOps and the cloud, while midrange patforms - and the languages and databases that support them - were not designed for modern IT; resulting in difficult integrations and limited flexibility.

Exorbitant costs

Mainframes and midrange platforms cost as much as 4,500% more to operate than equivalent cloud counterparts, a figure compounded by a scarcity of development resources and rising licensing and maintenance fees for ancillary utilities, applications, and databases.

iSeries Modernization Suite


To thrive in today's digital world, organizations must develop a mastery of rapid response, effortless course correction, and unencumbered agility in the face of competitive innovation. This is particularly difficult for large firms with rich heritage because of their reliance on outdated, inflexible midrange systems such as the AS/400, which is reliant on RPG and COBOL. These mission-critical systems are expensive to run and contain unique intellectual property and business processes developed over decades, rendering them difficult to replace by traditional means.

We offer a complete set of COBOL and RPG legacy modernization tools based on decades of midrange migration experience. They extend unmatched flexibility with three rational approaches to evolutionary modernization:

  1. iAnalysis
  2. iSeries Converter
  3. iSeries Express


advanced as400 iseries rpg migration


An analysis tool that provides a complete understanding of the application, infrastructure, and operational components of an iSeries environment. It exposes artifacts that organizations do not know they have, relationships they do not realize exist, and assets that are no longer in use. iAnalysis also provides stakeholders with valuable documentation to inform application modernization decisions such as disposition strategies and target environment architectures. It also mitigates cost and risk by highlighting potential challenges and how to overcome them.

iSeries Converter

The fastest, most effective automated conversion to Java and open systems. Designed for clients without deep optimization needs who are seeking 100% like-for-like functionality across platforms, Converter provides a low-risk, low cost path to migrate away from AS/400.

iSeries Express

A super-charged, optimized automated refactoring solution for clients with target state optimization requirements and tight performance constraints. Express provides a highly automated migration based on configurable transformation models with the ability to consume flexible specifications while providing clean, efficient, and well-structured code to ease long-term maintenance.

The iSeries Modernization Suite unlocks a whole new world of quality and scalability for midrange migrations, from automated testing to quality assurance, and the ability to leverage containerized deployments and orchestration with Docker and Kubernetes.

Over 35 years of mainframe modernization experience

More than 500 successful modernization projects completed

Over 2.5 billion lines of code refactored through automation

Intelligent Modernization, Unparalleled Experience


Additional insights to help you modernize


  • 2021 Mainframe Modernization Report

    Explore the the impact Covid-19 is having, and will continue to have, on modernization plans, and the case for application modernization among large enterprises with annual revenues over $1 billion.

    Read report
    an image associated with2021 Mainframe Modernization Report Report
  • Siemens Healthineers

    Learn how refactoring 30 million lines of RPG/COBOL to Java future-proofed critical systems and reduced costs for providers across an industry.

    Read case study
    an image associated withSiemens Healthineers Case Study
  • Live Discussion: The 2021 Mainframe Modernization Business Barometer Report

    Webinar Watch on demand
  • How cloud migration can help your organization to go green

    Blog Read blog
  • Know the details, reduce the risk: How to begin your mainframe modernization journey

    Webinar Watch on demand
  • Struggling to adopt DevOps? Maybe it’s because of your ageing mainframe

    Blog Read blog

News & Opinions

BLOG // 29-07-2022

Webinar Recap: Modernizing your Natural/Adabas for a more secure future

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

Webinar Recap: Modernizing your Natural/Adabas for a more secure future

Data Security & Application Modernization

Data security is an increasing concern for organizations across the globe, and it is also a major driver for selecting modernization strategies and cl…

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

BLOG // 30-06-2022
Data Security & Application Modernization

The state of legacy IT skills shortages

The recent pandemic seems to have jump-started a season of rapid change in IT, and companies with legacy systems are feeling this shift the hardest.

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

BLOG // 10-06-2022
The state of legacy IT skills shortages