From the website:
Migration Specialties provides software planning, management, consulting, migration, and conversion services built around the OpenVMS operating system. Migration Specialties also manufactures and distributes the only RPG compiler available under OpenVMS. We offer VAX and Alpha emulators as legacy hardware replacement solutions. We provide programming and migration services for legacy applications written in COBOL, DIBOL, RPG, Macro-32, and other legacy languages. We have specialized tools for migrating or converting legacy RPG applications from IBM System 3X System 3, System 34, System 36 , AS 400, iSeries, and System i computers.