- David Huenger - Cobol, IBM legacy and web consultant.
- Horner Consulting - Renovating support for legacy MPE operating systems and other compatible applications.
- Relativity Technologies - Offer application modernisation solutions to enhance legacy systems, as an alternative to implementing new systems.
- Retro-Mation - Software products, consulting and services that assist customers with their development and retro-fit projects.
- Software Revolution - Utilizes program analysis tools for automating the migration and transformation of legacy systems. Describes technologies employed and services offered.
