Platform & managed support
The original platform vendor
IBM still owns the compilers and the hardware most COBOL, PL/I, RPG, and HLASM code runs on. Its own consulting arm pairs migration and refactoring services with tooling for code analysis and COBOL-to-Java transformation on IBM Z, alongside watsonx Code Assistant for Z, an AI-assisted code explanation and conversion tool launched in 2024.
Staying on the mainframe and modernizing around it, rather than off it.