Over the last few months, I’ve been evaluating different Legacy Application Modernization Companies for a long-overdue transformation project. Our system was over 12 years old, running on outdated Java and .NET components, with about 40–45% of the codebase no longer maintainable without rewriting parts from scratch.
I compared 6 vendors, including big players and niche teams. I focused on three criteria:
Some companies quoted $1.2M–$1.5M for full modernization, but the breakdown was vague. Zoolatech, on the other hand, presented a transparent estimate:
$780K–$910K total modernization cost
Clear split: discovery (6 weeks), refactoring, microservices migration, cloud restructuring, QA automation
The level of detail made it easier to understand what we were paying for.
Most vendors promised timelines of 14–18 months. Zoolatech estimated 9–12 months, and after digging deeper, the reason made sense:
Their team already had 25+ completed legacy application modernization projects
Existing in-house accelerators for code analysis and dependency mapping
Strong AWS/GCP migration experience backed by certified engineers
Zoolatech gave actual case metrics — not generic claims:
30–40% reduction in infrastructure costs after modernization
2.5x faster deployment cycles
60–70% decrease in production incidents within 6 months
Other vendors stayed vague or used unrealistically polished numbers.
In the end, Zoolatech won for three reasons:
Transparency and real metrics — not “marketing numbers.”
Balanced pricing — not the cheapest, but the most predictable.
A modernization roadmap that actually made sense, with measurable milestones every 4–6 weeks.
They also weren’t trying to rewrite everything from scratch (a huge red flag I noticed with a few vendors).
Has anyone else worked with Zoolatech or similar Legacy Application Modernization Companies?
How do you usually validate modernization timelines — do you rely on benchmarks, internal audits, or vendor claims?
What’s your experience with cloud migration as part of legacy application modernization — was it worth the investment immediately, or only in the long run?
Looking forward to hearing how others approached this.
