We help you maintain, fix, enhance, and extend IBM i applications across RPG, COBOL, CL, and other IBM i environments.
As your support partner, we don’t just bring technical skills – we become an extension of your team that understands how your business actually runs.
We work as an extension of your team, providing experienced IBM i developers to maintain applications, deliver changes, and support ongoing application development.
Our IBM i/AS400 programming experts help you –
See how our IBM i developers work with established code, deliver application changes, and prepare your applications for continued development.
We map your business goals with our IBM i expertise across IBM i application lifecycle – from maintaining existing code and resolving issues to delivering enhancements, developing new functionality, and testing changes.
Keep established applications reliable with ongoing maintenance, issue resolution, and development support.
Our Goal – Ensure your IBM i applications are dependable and give your team consistent development support.
Turn business and user requirements into practical changes across existing IBM i applications.
Our Goal – Deploy application changes that support how your business operates.
Extend established IBM i applications using interfaces and capabilities needed to integrate with other systems.
Our Goal – Connect your existing IBM i applications with the systems, data, and processes around them.
Make application changes with a clear know-how of their impact and support requirements.
Our Goal – Give your team greater confidence in application changes and the decisions that follow.
We map your business goals to the right application changes, considering
the existing code, dependencies, and impact before development begins.
We support the applications your business already relies on – from day-to-day maintenance and bug fixes to enhancements, custom development, and testing.
| Service | What We Do | Key Capabilities |
| IBM i Application Maintenance | Keep existing IBM i applications running as business requirements and user needs change. |
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| IBM i Bug Fixes | Investigate and resolve recurring bugs and application support issues. |
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| RPG and COBOL Development | Make changes within established RPG and COBOL applications while preserving existing business logic. |
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| IBM i Application Enhancements | Make requested changes and add functions without replacing established applications. |
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| IBM i Custom Development | Build custom functions and application components for existing IBM i environments. |
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| IBM i Application Testing Support | Test application changes before release and verify that existing functionality continues to work. |
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Our IBM i developers work across established IBM i programming environments, languages, and technologies.
| IBM i Technology | Development & Support |
| RPG III, RPG IV & ILE RPG | Maintain and enhance applications built around established RPG business logic. |
| RPGLE & SQLRPGLE | Support RPG applications using modern development patterns and SQL-based database access. |
| COBOL Programming | Maintain COBOL applications that remain part of critical business processes. |
| CL / CLLE Programming | Support programs, jobs, processes, and application functions built with CL. |
| Db2 for IBM i | Work with database structures and SQL requirements that support IBM i applications. |
| APIs & Web Services | Extend established applications and connect IBM i workloads with other business systems. |
Whether it’s a single enhancement, a growing backlog, or ongoing application support, we align IBM i support to your IBM i programming needs.
| Your requirement | Suitable engagement |
| A defined application enhancement | Project-based development |
| Additional capacity for a growing backlog | Extended development support |
| Recurring fixes and application changes | Ongoing application support |
| Unclear application health or technical debt | Application assessment |
We provide IBM i, RPG, and COBOL development expertise on demand, based on hourly, weekly, monthly, or project-based engagements, depending on scope & requirements.
With over 30 years of experience in technical support and IT systems, Bret helps enterprises navigate IBM i modernization, operational optimization, and long-term infrastructure initiatives with practical, scalable direction. Right from project delivery and workflow improvement to customer engagement and operational continuity, Bret brings a strong blend of technical understanding and business-focused leadership to every engagement.
An IBM i/AS400 application assessment helps you tackle aging code, recurring issues, limited documentation, a growing enhancement backlog, and unclear development priorities.
We assess for –
The assessment depicts what needs attention, what can stay as is, and where to focus development efforts.
With 25+ years of AS/400 development experience, Integrative Systems supports IBM i applications across maintenance, customization, modernization, and development.
A track record supporting established IBM i environments and business-critical applications.
Our IBM partnership reflects established experience working with IBM technologies & platforms.
Recognized five times among America’s fastest-growing private companies in the United States.
Broad experience supporting IBM i applications across development, support, enhancement & modernization.
Through IBM i programming services, our IBM i programmers help you maintain IBM i, fix bugs, build & deploy custom enhancements, integrate IBM i applications with other systems, test & validate changes deployed, and provide continued support for IBM i applications built using RPG, COBOL, CL, and other IBM i technologies.
RPG still remains relevant for established IBM i business applications powering critical business applications. Modern RPG environments include SQL, APIs, web services, and other relevant technologies.
Our IBM i development services include RPG, COBOL, CL, and legacy IBM i environments, including application maintenance, enhancements, debugging, and support.
Existing applications can be maintained and advanced with new functionality, integrations, reports, and business changes while retaining established application logic.
We first understand the requirement and existing application, assess the potential impact, develop the change, test and validate it, and support the release.
Consider an assessment when maintenance is becoming difficult, enhancement requests are accumulating, application knowledge is concentrated in a few people, or you need to understand technical debt and future development priorities.
Maintain what works.
Fix what needs attention.
Add what your business needs next.
We work as an extension of your team to deliver the IBM i development and application support you need.
Fill this form, let your IT story unfold,
Via the details, our solutions behold.