If you’re searching for nearshore agencies for legacy system modernization, you’re already ahead of the curve.
Legacy systems can slow you down. They’re often fragile, expensive to maintain, and can drain your budget. At the same time, a complete rewrite is risky, and your team may not have the time or resources for it.
Nearshore agencies can help in this situation. They offer experienced engineers, strong security skills, and work in similar time zones, making it easier to update your legacy systems without disrupting your plans.
5 Top Nearshore Agencies for Legacy System Modernization
Below are some of the best nearshore agencies that focus on helping US companies modernize their legacy systems.
#1
LoopStudio
Uruguay-based nearshore partner specializing in secure legacy modernization with SSDF-trained engineers.
LoopStudio has earned its reputation by working with cybersecurity and fintech companies that need to avoid downtime or vulnerabilities during migrations.
Their team is trained in the SSDF (Secure Software Development Framework), so security is built into every line of refactored code from the start.
One thing that sets them apart is real-time collaboration. They work just 1-2 hours ahead of US Eastern time, so you get quick answers when important decisions come up.
Their engineers are skilled at breaking down monolithic systems, migrating data without downtime, and refactoring legacy codebases into modern architectures.
#2
BairesDev
Argentina-based nearshore leader with Fortune 500 experience in enterprise-scale legacy migrations.
BairesDev is one of the largest nearshore development companies in Latin America.
They have handled complex legacy modernization projects, focusing on enterprise-scale systems where downtime is not an option, and migrations must be done in phases.
Their main strength is their process. If you need a team that can work with your existing DevOps pipeline and manage migrations for systems with millions of users, BairesDev has the infrastructure to support you.
#3
Rootstrap
Los Angeles & Uruguay hybrid team known for rapid legacy app rebuilds and cloud migrations.
Rootstrap uses a hybrid model with offices in Los Angeles and Uruguay, giving them the advantages of both locations.
They are known for taking old mobile and web apps and rebuilding them from scratch with modern frameworks like React, Node.js, and AWS.
If your legacy system is an outdated Rails app or an old mobile experience, Rootstrap specializes in fast rewrites.
They also focus on product thinking, so instead of just rebuilding what you had, they help you figure out what your users really need.
#4
Gorilla Logic
Costa Rica-based agile specialists for legacy Java and .NET modernization projects.
Gorilla Logic has been in business for over a decade. They focus on updating old enterprise Java and .NET systems, such as legacy banking software, insurance platforms, and enterprise SaaS tools that have not been updated in years.
Their teams use an agile approach, making them a good fit for phased modernization projects where you want to deliver improvements step by step instead of doing a complete rewrite all at once.
#5
Ateliware
Brazil-based nearshore firm with expertise in legacy modernization and digital product development.
Ateliware, located in Curitiba, is a software development company that took part in the 500 Startups accelerator program in Silicon Valley. They focus on updating older systems and apply a startup mindset to large-scale upgrades.
Their teams work on web and mobile app development, microservices architecture, and cloud migration. This makes them a good fit for companies that want to move away from large, outdated systems.
They work closely with clients and use agile methods to keep projects on schedule.
Conclusion
When evaluating nearshore agencies for legacy system modernization, remember that it’s not just about rewriting old code.
Nearshore teams give you the real-time collaboration and time zone alignment that make complex migrations smoother and faster.
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