In a world where everything seems to revolve around the cloud, mobile apps, and artificial intelligence, there’s a silent protagonist that remains the backbone of many organizations: the Mainframe. And we're not talking about a “technological dinosaur,” but rather a platform that continues to make a difference in banking, finance, insurance, and large enterprises.

At Macrotest, we’ve been working with this ecosystem for over 30 years—developing, optimizing, and securing the critical environments that keep the operations of millions of people running every day. Our expertise ranges from COBOL and Assembler under CICS or IMS, to DB2 optimization, automation with REXX and JCL, and specialized training in z/OS and RACF.

Why do we do it? Because the Mainframe doesn’t just withstand the test of time—it evolves. And it does so alongside partners like IBM, with whom we’ve had a partnership for more than three decades. In fact, in 2024 we received a very special recognition: we were the Business Partner that sold the most IBM hardware in Argentina.

Our president, José María Louzao Andrade, summed it up perfectly when receiving the award:

“This award makes us proud because we’ve had a strong relationship with IBM for many years, and with each innovation in hardware and software, we continue to evolve to deliver the best to our clients. We’re moving forward on that path with many challenges ahead.”

Today, from our presence in Spain, we aim to bring this experience to organizations seeking stability, security, and performance in their critical infrastructures. Because we know that every project needs a reliable, innovative partner with a global vision.

At Macrotest, we are convinced: the future is not about choosing between the new and the classic, but about integrating the best of both worlds.

👉 Want to explore how to enhance your Mainframe infrastructure or migrate safely to a hybrid model?

Let’s talk.