AS400 Services

Our dedicated AS400 Services provide cost-effective, productive AS400 programming to meet your business needs.


AS400 Programmers

Our AS400 programmers are skilled in all types of IBM iSeries programming languages, including ILE, RPG III, IV, Free, and CL.


AS400 Services

Our IBM iSeries/AS400 services include modernization, development, migration, and maintenance support.


AS400 Solutions

The PIO team specializes in IT consulting, enterprise solutions, and engineering solutions.

What is AS400?

What do you know it as? How do you write it? Let’s explore all the variant searches for AS400:

  • AS-400, AS400, AS 400, AS/400, AS400 system
  • AS400 i Series, AS400 / i-Series, AS400 i-Series, AS400 iSeries, iSeries AS400
  • IBM AS/400, IBM iSeries, AS 400 iSeries
  • IBM i

Originally introduced in 1988, it has been a mainstay of businesses across many industries for decades. Over the years, the software and hardware of IBM i/AS400 have undergone several name changes with updates and revisions. Name changes have included AS400, Series Servers, and IBM system i. The rebranding of IBM iSeries products resulted in the launch of the present-day IBM Power Systems, also called IBM i/AS400 or iSeries systems.

Unlike traditional computer systems, AS400 has a unique architecture. In addition to data replication, mirroring, backups, and recovery, the database management system, DB2, is highly optimized for performance. With its virtual memory, AS400 manages resources efficiently while handling multiple tasks simultaneously.

Integrating AS400 with other systems and technologies is one of its key advantages. With its support for various programming languages, including RPG, COBOL, Java, and PHP, developers can easily create and integrate custom applications with existing systems.

The AS400 is used extensively in finance, manufacturing, and healthcare industries, where dependability, security, and flexibility are crucial. Its distinctive design, resilient operating system, and seamless integration with other technologies make it a preferred option for companies of all sizes.

Evolution of IBM Power Systems

As400 Overview

Our IBM i/AS400 Support Services


AS400 Application Development

We are specialist in IBM i (AS/400, iSeries and Power Systems) and have years of experience working on technologies.


AS400 Application Modernization

We help our customers to upgrade the capabilities of IBM (iSeries, AS/400, Power Systems, and RPGLE) applications.


AS400 Conversion & Migration

We have expertise in streamlining conversions/migrations of IBM iSeries (System i) applications.


AS400 Maintenance And Support

We provide support and maintenance for IBM iSeries(System i) including application management.

Other AS400 (IBM i) Services


AS400 Automation

We offer comprehensive AS400 automation services to help you streamline your processes and improve efficiency.


AS400 Support

PIO provides AS400 support and services for the IBM iSeries (System i), including application management.


AS400 Modernization GUI

We can modernize your AS400 system using the IBM iSeries by adding a graphical user interface (GUI).


AS400 Cloud Migration

Keep your workload safe in an IBM i environment as we move your AS400 system to the cloud using iSeries.


AS400 System Documentation

We offer comprehensive IBM i system documentation services to help you manage your system documentation efficiently.


AS400 Integrations

We specialize in integrating iSeries or AS400 applications with modern technologies to improve efficiency and performance.

Advancing IBM iSeries through professionalism and expertise

The team has advanced expertise in developing customized applications, modernizing the Legacy Screens and enhancing ERP applications on IBM iSeries (AS/400, System i).

The team are experts in developing customized applications, modernizing legacy screens, and enhancing ERP applications on the IBM iSeries (AS400, System i). We provide cost-effective IBM iSeries (AS400, System i) maintenance services (software) and bespoke application development.

We have expertise in AS400 RPG programming (across versions – II, III, IV, RPG/400 & ILE RPG), CL programming, COBOL, Web services, SQL, HTML, JS, and Web Sphere. We provide AS400 administration, custom development of new applications, modernize existing applications, support package implementations, maintain legacy applications, upgrade technologies, develop AS400 API, develop web portals, create front-ends, perform database integration, manage data transfer, and billing.

Technologies Supports

Legacy Platforms
  • EDI(TrustedLink)
  • IBM Cognos
  • Mainframe/Cobol
  • Delphi
  • C++
Modern Platforms
  • Dot Net
  • PHP/MYSQL/json
  • Angular
  • React.Js / Ext Js
  • iOS/Android
  • Java/Others
Project Management
  • BaseCamp
  • JIRA
  • Teamworks
  • SQL
  • IBM
  • DB2
  • RPG-Free
  • CLLE
  • Banking and Finance
  • E-Commerce
  • Manufacturing
  • Insurance
  • Retail
  • Healthcare

Frequently Asked Questions (FAQ)

Some of the most commonly asked questions about IBM i/RPGLE aka AS400 Development, answered by our Dedicated IBM i Development Team.

Who is an AS400 developer?

An AS400 developer is an IT professional who specializes in developing applications for the IBM iSeries (also known as AS400) platform. AS400 developers have the knowledge and expertise to create custom applications that can help businesses automate processes, manage data, and streamline operations.

Is IBM i iSeries AS400 still in demand 2023?

Despite its age, the IBM iSeries/AS400 platform is still in demand by many companies and organizations. The AS400 platform is widely used in industries such as finance, healthcare, and retail and has a proven track record of reliability, security, and scalability. Additionally, the platform has evolved over the years to include modern features and capabilities that make it well-suited for organizations that have mission-critical applications and data.

How many companies still use AS400?

The exact number of companies that still use AS400 is difficult to determine, but it is estimated that thousands of organizations worldwide continue to use the platform. The IBM iSeries/AS400 platform has a large and active user base, and many organizations find that the platform provides a stable, secure, and cost-effective solution for their essential applications and data.

What company industries use AS400?

Many companies and organizations from a variety of industries use the AS400 platform. Some examples include finance and banking, healthcare, retail, logistics, and government organizations. The AS400 platform is well-suited for organizations with necessary applications and crucial data that require a reliable, secure, and scalable solution.

Is AS400 still supported?

Yes, the AS400 platform is still supported by IBM. IBM continues to provide maintenance, updates, and support for the platform, ensuring that it remains a viable and secure solution for organizations with mandatory applications and data. Additionally, there are many specialized providers that offer expertise, resources, and support for the AS400 platform, helping organizations to keep their AS400-based systems running smoothly and efficiently.

What is AS400 software used for?

The AS400 software is used to run and manage mission-critical applications and data for organizations. The AS400 platform includes a range of software components, including the operating system, middleware, and applications, that work together to provide a stable, secure, and scalable solution for organizations that have essential data and mission-critical applications.

What is AS400 operating system?

The AS400 operating system is the foundation of the AS400 platform. It provides the underlying infrastructure that enables the platform to run and manage essential applications and data. The AS400 operating system is known for its reliability, security, and scalability, and it has a proven track record of providing a stable and secure solution for organizations that have critical data and applications.

Is AS400 a programming language?

No, AS400 is not a programming language. It is a platform that includes a range of software components, including an operating system, middleware, and applications, that work together to provide a stable, secure, and scalable solution for organizations that have crucial data and applications that are necessary for business operations. The platform supports a variety of programming languages, including RPG, COBOL, and Java. Organizations can choose the programming language that is best suited for their needs.

I need an audit for AS400 application stability and performance. Can you help?

Yes, we can help you with an audit for AS400 application stability and performance. Our team includes experienced AS400 programmers who perform a thorough assessment of your AS400-based applications and provide you with recommendations to improve its stability and performance. Whether you need help with code optimization, system tuning, or infrastructure upgrades, we provide you with the expertise and resources necessary to ensure that your AS400-based applications run smoothly and meet your business’ needs.

Do you provide AS400 support on an ad-hoc basis?

Yes, we offer IBM AS400 support on an ad-hoc basis. Whether you need help with a specific issue, or ongoing support to ensure that your AS400 platform runs smoothly, our team of experts are available to provide the support you need, when you need it.

I need a consultation with iSeries/AS400 RPG programmers for long-term support planning. Can you help?

Yes, we offer consultation for long-term support planning for your iSeries/AS400 platform. iSeries/AS400 experts on our team will work with you to design a comprehensive support plan to keep your platform running smoothly and efficiently over time.

What types of AS400 services does provide? provides a wide range of AS400 services, including but not limited to:
1. AS400 Application Development
2. AS400 Modernization Services
3. AS400 Conversion and Migration
4. AS400 Maintenance and Support
5. AS400 Consulting
6. Integration and Migration Services
8. AS400 Automation
These services cover different areas of AS400 technology, such as software development, modernization and migration, maintenance and support, consulting, and automation.

See Your Project Take Flight

We Support Legacy
& Modern Platforms

  • Developers for both legacy and modern platforms
    See Technologies
  • Certified SMEs with access to knowledgeable support staff
  • Remote support in a variety of time zones


  • Try us for 90 days
  • No startup costs or upfront fees
  • You will not be invoiced if you are not happy with our work


  • Fixed monthly pricing
  • No hidden fees
  • No long-term contracts


"We find your team to be true business partners. Exceptionally responsive, strong domain knowledge, and outstanding at execution."

Chief Integration Officer

"Happy with the performance. The team is self-driving, which is something I’ve had struggles with in the past. Very knowledgeable on the IBM i and requires minimal guidance."

Director of Information Technology

"Every developer we have worked with has been great! They are great at analyzing and making great suggestions, in addition to coding all that we ask for. Even with the time difference, they are always willing to work on "our hours" when needed for deadlines and projects as needed. Thanks for everything!"

Chief Information Security Officer

"The programmers I have worked with have all been great! They think out of the box and make suggestions, and they research and figure things out on their own, which is a tremendous help to me. I would recommend them to any prospective clients you have."

Project Manager

"Great team and still one of the best I’ve worked with on the IBM i/RPG environment"

VP, Commercial Excellence & Digitization


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Awards and Certifications

Our programmers are well-versed in all the latest versions and libraries. We can
help your business integrate technologies no matter your requirements.

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