Modernize and Optimize Without Compromise
Modernize Without Compromise
Legacy mainframes power your most critical operations—but that doesn’t mean they have to hold you back. FNTS delivers modernization strategies that optimize costs, unlock agility, and future-proof your core systems. Whether you rehost, refactor, or replatform, we’ll help you achieve meaningful transformation without disrupting business continuity.
Mainframe Modernization & Optimization Services
Mainframes are essential to your enterprise—but modernization is essential to your future. At FNTS, we help organizations in highly regulated industries transform legacy systems into modern, secure, and scalable solutions. Whether your goal is to reduce technical debt, improve performance, or align with your cloud-first strategy, our experts guide you every step of the way.
Our Three-Phase Approach
Rehost. Refactor. Replatform.
FNTS takes a phased, strategic approach to modernization—helping you evolve at the pace your business requires.
Strategy |
Outcome |
Rehost Leverage Your Legacy Mainframe |
Leverage your legacy mainframe by optimizing and migrating current workloads to a cloud-like Mainframe-as-a-Service offering that doesn’t require code changes and ensures your existing mainframe data is managed and fully available. |
Refactor Stay Competitive |
Stay competitive, innovate and accelerate time to value as data is extracted from the mainframe and manipulated with enhanced tools, including GenAI, to achieve 100% automated code transformation. |
Replatform Ensure Business Continuity |
Ensure business continuity and continuous modernization when converted data and applications are integrated to a contemporary multicloud or hybrid cloud environment. |
Expert-Led, Outcome-Driven Mainframe Transformation
Unmatched Experience in Complex IT Environments
- 30+ years of modernization leadership in finance, healthcare, manufacturing, and government.
- Platinum IBM Partner with deep expertise in hybrid mainframe-cloud architecture.
- Recognized Leader in Mainframe Modernization by ISG Provider Lens™.
Proven Results, Trusted by Clients
- 15–20% annual savings on average when rehosting mainframe workloads.
- Up to 80–90% long-term TCO reduction with full refactor and replatform strategies.
- 97% client retention and a track record of long-term strategic partnerships.
Comprehensive, Secure Managed Services
- Tiered service levels: Infrastructure-only to fully managed environments.
- 24x7x365 U.S.-based support with guaranteed SLAs and uptime.
- Integrated cyber resiliency, disaster recovery, and compliance controls.
Let’s Modernize and Optimize the Right Way
Your mainframe isn’t going anywhere—but how you manage and scale it can change everything. Connect with FNTS to explore a smarter modernization roadmap built around your goals.
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The FNTS Advantage.
FNTS supports any generation of mainframe environments, including Windows, Linux, AIX, and IBM i operating systems.
Leveraging FNTS can provide business continuity and 24/7 support to ensure technical and operational coverage during all shifts, which can be achieved at a fraction of the cost of having a full-time, on-site team.
As a trusted advisor in managed IT services for 30 years, FNTS provides an exceptional customer experience. We consistently achieve high service ratings from customers, have an above-average customer retention rate of 97%, and are proud to say 70% of our customers come from referral sources.
Our Partners

