TSRI Named 2025 ISG Leader in Mainframe Modernization – US & Europe
In the 2025 ISG Provider Lens™ Mainframe—Services and Solutions Mainframe Application Modernization Software Quadrant, TSRI has once again been named a Leader in the U.S.—and, for the first time, earned the prestigious Leader position in the European market. This milestone expands our proven leadership to a global scale, recognizing the strength of our solutions and the trust of our clients.
ISG’s evaluation highlights TSRI’s patented JANUS® Studio, our unmatched automation, and decades of innovation in AI-enabled modernization. With support for over 35 programming languages and a focus on precision, performance, and maintainability, we help organizations transform legacy systems into modern, future-ready applications—delivered faster, more reliably, and with lasting results.
Discover Why TSRI Leads the U.S. Market
TSRI has unique capabilities around source and destination languages, providing more options and better quality. It is one of the few vendors that offers code warranty, no license fees and multiyear support to optimize application performance.
More than 35 supported legacy and modern languages
Iterative defect-reducing automation process
GenAI-powered code documentation and testing
Code warranty with no license fees
Trusted partner for aviation, defense, and highly regulated industries
New for 2025—TSRI Named Leader in the Europe Market
TSRI leads with automation, language versatility and superior refactoring capabilities, delivering holistic modernization with efficiency and precision.
End-to-end modernization across code, databases, UI, and CI/CD
Remote delivery and support for global clients
99.9x% automation rate through JANUS® Studio
Language versatility including COBOL, CA Ideal, Fortran, Ada, Java, C#, and modern frameworks
High-volume code refactoring and documentation for better performance and maintainability
