Whether you call it AS400, iSeries, System i, or IBM i, Treo provides the RPG programming, system administration, integration, and modernization support that organizations need to keep critical IBM Midrange environments running, connected, and practical to evolve.
Many organizations still depend on IBM i because it runs critical business processes reliably and has been shaped around their operations over many years. The platform itself is not the issue. The issue is that the environment around it has changed. Staff retire, newer systems need to connect, interfaces feel dated, and fewer people every year have the depth to support it confidently.
That is why IBM i support today is less about defending the platform and more about keeping it practical, connected, and supportable as the rest of the business evolves. Modernization does not have to mean replacing everything that works. In many cases, the better path is to keep the stable business logic, improve the parts that create friction, and connect the platform to what the business needs now.
The trigger is usually a support risk, not a platform failure.
The scope depends on the environment, but this is the practical work that keeps IBM i systems supported, connected, and evolving.
Maintaining, modifying, and extending the application logic that drives core business operations. This includes working with legacy RPG code that may have been written decades ago and is still running critical processes.
Day-to-day platform management, database administration, and the operational work required to keep the environment stable, secure, and properly maintained.
Improving how people interact with the system without replacing the stable business logic underneath. Green-screen workflows, dated interfaces, and manual processes can be modernized practically.
Connecting IBM i to modern platforms, web services, cloud systems, and other business applications. The platform does not have to be an island.
Many IBM i environments run ERP systems and custom business applications that have been shaped around the organization's operations over years. Treo has direct experience supporting these platforms.
Reducing the risk that grows when fewer people can support the environment. Knowledge that lives only in one person's head is an operational vulnerability.
The value is not just a list of capabilities. It is how the work develops once the relationship is in place.
What applications are running? What RPG code is critical? Where is the knowledge concentrated? What integrations exist? The first step is a clear picture of what the platform does and where the risks are.
If the environment has been running on institutional knowledge and informal maintenance, the first priority is getting it into a supportable state. Documentation, monitoring, and clear ownership come before modernization.
Modern reporting, web applications, cloud systems, and other business platforms often need data from IBM i. API development and integration work connects the platform without disrupting what already works.
Green-screen interfaces, manual processes, and dated workflows can be modernized practically. The goal is evolution, not a reckless rip-and-replace that puts stable business logic at risk.
Steady RPG programming support, administration, and operational coverage reduce the continuity risk that comes from having critical platform knowledge concentrated in too few people.
These are the questions we hear most often from organizations evaluating whether they need outside help with their IBM i environment.
Yes. That is a core part of what Treo does on this platform. Many IBM i environments run RPG III and RPG IV code that has been in production for 20 or 30 years. Treo has the experience to work with legacy code, maintain it, and extend it when needed.
Not automatically. If the platform is still running critical work reliably, the better path is usually to keep the business logic, modernize what creates friction, and improve connectivity. A full migration only makes sense when the business case is clear and the risks are understood.
This is one of the most common triggers. Treo can work alongside the outgoing person to capture knowledge, document the environment, and transition support so the platform does not become unsupported when they leave.
Many organizations that run IBM i also need broader IT support for users, Microsoft 365, security, and infrastructure. IBM i work often sits alongside a managed IT relationship where Treo handles both the platform and the surrounding environment.
A conversation can help clarify where support risk, modernization pressure, or integration needs may be creating friction, and whether Treo is the right fit for your environment.
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