The Mainframe Won't Retire Itself
How enterprise leaders uncover hidden system logic, pick the right modernization strategy, and cut the cost and risk of getting there.
What's inside:
- Why translation, lift-and-shift, and redesign approaches all stall at the same wall
- Why generic AI coding tools break down on legacy, undocumented codebases
- How a Fortune 100 insurer mapped a 30-million-line estate before writing a single line of new code
- How a 400,000-line COBOL application was rebuilt in Java Spring Boot in three weeks
"We've been in a dark room with a flashlight, inspecting each individual module. Blitzy feels like flipping on the overhead light, seeing the whole room at once."Fortune 100 insurance leader, 30M+ line estate
92%
of COBOL developers retire by 2030
800B+
lines of COBOL in production
70%+
of mainframe exit projects miss their goals
Blitzy
One Kendall Square,
Cambridge,
MA 02139
© 2026 Blitzy. All rights reserved.